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732 commits

Author SHA1 Message Date
Greg Kroah-Hartman
cf682cc8e3 This is the 4.4.186 stable release
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Merge 4.4.186 into android-4.4-p

Changes in 4.4.186
	Input: elantech - enable middle button support on 2 ThinkPads
	samples, bpf: fix to change the buffer size for read()
	mac80211: mesh: fix RCU warning
	mwifiex: Fix possible buffer overflows at parsing bss descriptor
	dt-bindings: can: mcp251x: add mcp25625 support
	can: mcp251x: add support for mcp25625
	Input: imx_keypad - make sure keyboard can always wake up system
	ARM: davinci: da850-evm: call regulator_has_full_constraints()
	ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
	md: fix for divide error in status_resync
	bnx2x: Check if transceiver implements DDM before access
	udf: Fix incorrect final NOT_ALLOCATED (hole) extent length
	x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()
	x86/tls: Fix possible spectre-v1 in do_get_thread_area()
	mwifiex: Abort at too short BSS descriptor element
	mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies()
	fscrypt: don't set policy for a dead directory
	mwifiex: Don't abort on small, spec-compliant vendor IEs
	USB: serial: ftdi_sio: add ID for isodebug v1
	USB: serial: option: add support for GosunCn ME3630 RNDIS mode
	usb: gadget: ether: Fix race between gether_disconnect and rx_submit
	usb: renesas_usbhs: add a workaround for a race condition of workqueue
	staging: comedi: dt282x: fix a null pointer deref on interrupt
	staging: comedi: amplc_pci230: fix null pointer deref on interrupt
	carl9170: fix misuse of device driver API
	VMCI: Fix integer overflow in VMCI handle arrays
	MIPS: Remove superfluous check for __linux__
	e1000e: start network tx queue only when link is up
	perf/core: Fix perf_sample_regs_user() mm check
	ARM: omap2: remove incorrect __init annotation
	be2net: fix link failure after ethtool offline test
	ppp: mppe: Add softdep to arc4
	sis900: fix TX completion
	dm verity: use message limit for data block corruption message
	kvm: x86: avoid warning on repeated KVM_SET_TSS_ADDR
	ARC: hide unused function unw_hdr_alloc
	s390: fix stfle zero padding
	s390/qdio: (re-)initialize tiqdio list entries
	s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
	KVM: x86: protect KVM_CREATE_PIT/KVM_CREATE_PIT2 with kvm->lock
	Linux 4.4.186

Change-Id: Ib318f4f4b7c21ffdccc7807d8bb26c0b46557129
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-07-22 15:54:20 +02:00
Arnd Bergmann
07724b2fad ARC: hide unused function unw_hdr_alloc
commit fd5de2721ea7d16e2b16c4049ac49f229551b290 upstream.

As kernelci.org reports, this function is not used in
vdk_hs38_defconfig:

arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function]

Fixes: bc79c9a721 ("ARC: dw2 unwind: Reinstante unwinding out of modules")
Link: https://kernelci.org/build/id/5d1cae3f59b514300340c132/logs/
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-21 09:07:14 +02:00
Greg Kroah-Hartman
60a02c0d81 This is the 4.4.185 stable release
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Merge 4.4.185 into android-4.4-p

Changes in 4.4.185
	fs/binfmt_flat.c: make load_flat_shared_library() work
	mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
	scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck()
	tracing: Silence GCC 9 array bounds warning
	gcc-9: silence 'address-of-packed-member' warning
	usb: chipidea: udc: workaround for endpoint conflict issue
	Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
	apparmor: enforce nullbyte at end of tag string
	parport: Fix mem leak in parport_register_dev_model
	parisc: Fix compiler warnings in float emulation code
	IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
	MIPS: uprobes: remove set but not used variable 'epc'
	net: hns: Fix loopback test failed at copper ports
	sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
	scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
	scsi: ufs: Check that space was properly alloced in copy_query_response
	s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
	hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
	Btrfs: fix race between readahead and device replace/removal
	btrfs: start readahead also in seed devices
	can: flexcan: fix timeout when set small bitrate
	can: purge socket error queue on sock destruct
	ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
	Bluetooth: Align minimum encryption key size for LE and BR/EDR connections
	Bluetooth: Fix regression with minimum encryption key size alignment
	SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
	cfg80211: fix memory leak of wiphy device name
	mac80211: drop robust management frames from unknown TA
	perf ui helpline: Use strlcpy() as a shorter form of strncpy() + explicit set nul
	perf help: Remove needless use of strncpy()
	9p/rdma: do not disconnect on down_interruptible EAGAIN
	9p: acl: fix uninitialized iattr access
	9p/rdma: remove useless check in cm_event_handler
	9p: p9dirent_read: check network-provided name length
	net/9p: include trans_common.h to fix missing prototype warning.
	KVM: X86: Fix scan ioapic use-before-initialization
	ovl: modify ovl_permission() to do checks on two inodes
	x86/speculation: Allow guests to use SSBD even if host does not
	cpu/speculation: Warn on unsupported mitigations= parameter
	sctp: change to hold sk after auth shkey is created successfully
	tipc: change to use register_pernet_device
	tipc: check msg->req data len in tipc_nl_compat_bearer_disable
	team: Always enable vlan tx offload
	ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
	bonding: Always enable vlan tx offload
	net: check before dereferencing netdev_ops during busy poll
	Bluetooth: Fix faulty expression for minimum encryption key size check
	um: Compile with modern headers
	ASoC : cs4265 : readable register too low
	spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
	ASoC: max98090: remove 24-bit format support if RJ is 0
	usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
	usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
	scsi: hpsa: correct ioaccel2 chaining
	ARC: Assume multiplier is always present
	ARC: fix build warning in elf.h
	MIPS: math-emu: do not use bools for arithmetic
	mfd: omap-usb-tll: Fix register offsets
	swiotlb: Make linux/swiotlb.h standalone includible
	bug.h: work around GCC PR82365 in BUG()
	MIPS: Workaround GCC __builtin_unreachable reordering bug
	ptrace: Fix ->ptracer_cred handling for PTRACE_TRACEME
	crypto: user - prevent operating on larval algorithms
	ALSA: seq: fix incorrect order of dest_client/dest_ports arguments
	ALSA: firewire-lib/fireworks: fix miss detection of received MIDI messages
	ALSA: usb-audio: fix sign unintended sign extension on left shifts
	lib/mpi: Fix karactx leak in mpi_powm
	btrfs: Ensure replaced device doesn't have pending chunk allocation
	tty: rocket: fix incorrect forward declaration of 'rp_init()'
	ARC: handle gcc generated __builtin_trap for older compiler
	arm64, vdso: Define vdso_{start,end} as array
	KVM: x86: degrade WARN to pr_warn_ratelimited
	dmaengine: imx-sdma: remove BD_INTR for channel0
	Linux 4.4.185

Change-Id: If1b1ee0b61d5f6d6fb162dc446c621d6baebfab9
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-07-10 12:57:28 +02:00
Vineet Gupta
a62a40c8a3 ARC: handle gcc generated __builtin_trap for older compiler
commit af1be2e21203867cb958aaceed5366e2e24b88e8 upstream.

ARC gcc prior to GNU 2018.03 release didn't have a target specific
__builtin_trap() implementation, generating default abort() call.

Implement the abort() call - emulating what newer gcc does for the same,
as suggested by Arnd.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-10 09:56:44 +02:00
Arnd Bergmann
2fbaa1af06 bug.h: work around GCC PR82365 in BUG()
[ Upstream commit 173a3efd3edb2ef6ef07471397c5f542a360e9c1 ]

Looking at functions with large stack frames across all architectures
led me discovering that BUG() suffers from the same problem as
fortify_panic(), which I've added a workaround for already.

In short, variables that go out of scope by calling a noreturn function
or __builtin_unreachable() keep using stack space in functions
afterwards.

A workaround that was identified is to insert an empty assembler
statement just before calling the function that doesn't return.  I'm
adding a macro "barrier_before_unreachable()" to document this, and
insert calls to that in all instances of BUG() that currently suffer
from this problem.

The files that saw the largest change from this had these frame sizes
before, and much less with my patch:

  fs/ext4/inode.c:82:1: warning: the frame size of 1672 bytes is larger than 800 bytes [-Wframe-larger-than=]
  fs/ext4/namei.c:434:1: warning: the frame size of 904 bytes is larger than 800 bytes [-Wframe-larger-than=]
  fs/ext4/super.c:2279:1: warning: the frame size of 1160 bytes is larger than 800 bytes [-Wframe-larger-than=]
  fs/ext4/xattr.c:146:1: warning: the frame size of 1168 bytes is larger than 800 bytes [-Wframe-larger-than=]
  fs/f2fs/inode.c:152:1: warning: the frame size of 1424 bytes is larger than 800 bytes [-Wframe-larger-than=]
  net/netfilter/ipvs/ip_vs_core.c:1195:1: warning: the frame size of 1068 bytes is larger than 800 bytes [-Wframe-larger-than=]
  net/netfilter/ipvs/ip_vs_core.c:395:1: warning: the frame size of 1084 bytes is larger than 800 bytes [-Wframe-larger-than=]
  net/netfilter/ipvs/ip_vs_ftp.c:298:1: warning: the frame size of 928 bytes is larger than 800 bytes [-Wframe-larger-than=]
  net/netfilter/ipvs/ip_vs_ftp.c:418:1: warning: the frame size of 908 bytes is larger than 800 bytes [-Wframe-larger-than=]
  net/netfilter/ipvs/ip_vs_lblcr.c:718:1: warning: the frame size of 960 bytes is larger than 800 bytes [-Wframe-larger-than=]
  drivers/net/xen-netback/netback.c:1500:1: warning: the frame size of 1088 bytes is larger than 800 bytes [-Wframe-larger-than=]

In case of ARC and CRIS, it turns out that the BUG() implementation
actually does return (or at least the compiler thinks it does),
resulting in lots of warnings about uninitialized variable use and
leaving noreturn functions, such as:

  block/cfq-iosched.c: In function 'cfq_async_queue_prio':
  block/cfq-iosched.c:3804:1: error: control reaches end of non-void function [-Werror=return-type]
  include/linux/dmaengine.h: In function 'dma_maxpq':
  include/linux/dmaengine.h:1123:1: error: control reaches end of non-void function [-Werror=return-type]

This makes them call __builtin_trap() instead, which should normally
dump the stack and kill the current process, like some of the other
architectures already do.

I tried adding barrier_before_unreachable() to panic() and
fortify_panic() as well, but that had very little effect, so I'm not
submitting that patch.

Vineet said:

: For ARC, it is double win.
:
: 1. Fixes 3 -Wreturn-type warnings
:
: | ../net/core/ethtool.c:311:1: warning: control reaches end of non-void function
: [-Wreturn-type]
: | ../kernel/sched/core.c:3246:1: warning: control reaches end of non-void function
: [-Wreturn-type]
: | ../include/linux/sunrpc/svc_xprt.h:180:1: warning: control reaches end of
: non-void function [-Wreturn-type]
:
: 2.  bloat-o-meter reports code size improvements as gcc elides the
:    generated code for stack return.

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82365
Link: http://lkml.kernel.org/r/20171219114112.939391-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Vineet Gupta <vgupta@synopsys.com>	[arch/arc]
Tested-by: Vineet Gupta <vgupta@synopsys.com>	[arch/arc]
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Christopher Li <sparse@chrisli.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ removed cris changes - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-10 09:56:42 +02:00
Vineet Gupta
014275fd84 ARC: fix build warning in elf.h
[ Upstream commit 1dec78585328db00e33fb18dc1a6deed0e2095a5 ]

The cast valid since TASK_SIZE * 2 will never actually cause overflow.

|   CC      fs/binfmt_elf.o
| In file included from ../include/linux/elf.h:4:0,
|                  from ../include/linux/module.h:15,
|                  from ../fs/binfmt_elf.c:12:
| ../fs/binfmt_elf.c: In function load_elf_binar:
| ../arch/arc/include/asm/elf.h:57:29: warning: integer overflow in expression [-Woverflow]
|  #define ELF_ET_DYN_BASE  (2 * TASK_SIZE / 3)
|                              ^
| ../fs/binfmt_elf.c:921:16: note: in expansion of macro ELF_ET_DYN_BASE
|     load_bias = ELF_ET_DYN_BASE - vaddr;

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-10 09:56:41 +02:00
Vineet Gupta
a414c47457 ARC: Assume multiplier is always present
[ Upstream commit 0eca6fdb3193410fbe66b6f064431cc394513e82 ]

It is unlikely that designs running Linux will not have multiplier.
Further the current support is not complete as tool don't generate a
multilib w/o multiplier.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-10 09:56:41 +02:00
Greg Kroah-Hartman
349ac1a59c This is the 4.4.177 stable release
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Merge 4.4.177 into android-4.4-p

Changes in 4.4.177
	ceph: avoid repeatedly adding inode to mdsc->snap_flush_list
	numa: change get_mempolicy() to use nr_node_ids instead of MAX_NUMNODES
	KEYS: allow reaching the keys quotas exactly
	mfd: ti_am335x_tscadc: Use PLATFORM_DEVID_AUTO while registering mfd cells
	mfd: twl-core: Fix section annotations on {,un}protect_pm_master
	mfd: db8500-prcmu: Fix some section annotations
	mfd: ab8500-core: Return zero in get_register_interruptible()
	mfd: qcom_rpm: write fw_version to CTRL_REG
	mfd: wm5110: Add missing ASRC rate register
	mfd: mc13xxx: Fix a missing check of a register-read failure
	net: hns: Fix use after free identified by SLUB debug
	MIPS: ath79: Enable OF serial ports in the default config
	scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param
	scsi: isci: initialize shost fully before calling scsi_add_host()
	MIPS: jazz: fix 64bit build
	isdn: i4l: isdn_tty: Fix some concurrency double-free bugs
	atm: he: fix sign-extension overflow on large shift
	leds: lp5523: fix a missing check of return value of lp55xx_read
	isdn: avm: Fix string plus integer warning from Clang
	RDMA/srp: Rework SCSI device reset handling
	KEYS: user: Align the payload buffer
	KEYS: always initialize keyring_index_key::desc_len
	batman-adv: fix uninit-value in batadv_interface_tx()
	net/packet: fix 4gb buffer limit due to overflow check
	team: avoid complex list operations in team_nl_cmd_options_set()
	sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach()
	net/mlx4_en: Force CHECKSUM_NONE for short ethernet frames
	ARCv2: Enable unaligned access in early ASM code
	Revert "bridge: do not add port to router list when receives query with source 0.0.0.0"
	libceph: handle an empty authorize reply
	scsi: libsas: Fix rphy phy_identifier for PHYs with end devices attached
	drm/msm: Unblock writer if reader closes file
	ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field
	ALSA: compress: prevent potential divide by zero bugs
	thermal: int340x_thermal: Fix a NULL vs IS_ERR() check
	usb: dwc3: gadget: Fix the uninitialized link_state when udc starts
	usb: gadget: Potential NULL dereference on allocation error
	ASoC: dapm: change snprintf to scnprintf for possible overflow
	ASoC: imx-audmux: change snprintf to scnprintf for possible overflow
	ARC: fix __ffs return value to avoid build warnings
	mac80211: fix miscounting of ttl-dropped frames
	serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
	scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state()
	net: altera_tse: fix connect_local_phy error path
	ibmveth: Do not process frames after calling napi_reschedule
	mac80211: don't initiate TDLS connection if station is not associated to AP
	cfg80211: extend range deviation for DMG
	KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1
	arm/arm64: KVM: Feed initialized memory to MMIO accesses
	KVM: arm/arm64: Fix MMIO emulation data handling
	powerpc: Always initialize input array when calling epapr_hypercall()
	mmc: spi: Fix card detection during probe
	mm: enforce min addr even if capable() in expand_downwards()
	x86/uaccess: Don't leak the AC flag into __put_user() value evaluation
	USB: serial: option: add Telit ME910 ECM composition
	USB: serial: cp210x: add ID for Ingenico 3070
	USB: serial: ftdi_sio: add ID for Hjelmslund Electronics USB485
	cpufreq: Use struct kobj_attribute instead of struct global_attr
	sockfs: getxattr: Fail with -EOPNOTSUPP for invalid attribute names
	ncpfs: fix build warning of strncpy
	isdn: isdn_tty: fix build warning of strncpy
	staging: lustre: fix buffer overflow of string buffer
	net-sysfs: Fix mem leak in netdev_register_kobject
	sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
	team: Free BPF filter when unregistering netdev
	bnxt_en: Drop oversize TX packets to prevent errors.
	net: nfc: Fix NULL dereference on nfc_llcp_build_tlv fails
	xen-netback: fix occasional leak of grant ref mappings under memory pressure
	net: Add __icmp_send helper.
	net: avoid use IPCB in cipso_v4_error
	net: phy: Micrel KSZ8061: link failure after cable connect
	x86/CPU/AMD: Set the CPB bit unconditionally on F17h
	applicom: Fix potential Spectre v1 vulnerabilities
	MIPS: irq: Allocate accurate order pages for irq stack
	hugetlbfs: fix races and page leaks during migration
	netlabel: fix out-of-bounds memory accesses
	net: dsa: mv88e6xxx: Fix u64 statistics
	ip6mr: Do not call __IP6_INC_STATS() from preemptible context
	media: uvcvideo: Fix 'type' check leading to overflow
	vti4: Fix a ipip packet processing bug in 'IPCOMP' virtual tunnel
	perf tools: Handle TOPOLOGY headers with no CPU
	IB/{hfi1, qib}: Fix WC.byte_len calculation for UD_SEND_WITH_IMM
	ipvs: Fix signed integer overflow when setsockopt timeout
	iommu/amd: Fix IOMMU page flush when detach device from a domain
	xtensa: SMP: fix ccount_timer_shutdown
	xtensa: SMP: fix secondary CPU initialization
	xtensa: smp_lx200_defconfig: fix vectors clash
	xtensa: SMP: mark each possible CPU as present
	xtensa: SMP: limit number of possible CPUs by NR_CPUS
	net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case
	net: hns: Fix wrong read accesses via Clause 45 MDIO protocol
	net: stmmac: dwmac-rk: fix error handling in rk_gmac_powerup()
	gpio: vf610: Mask all GPIO interrupts
	nfs: Fix NULL pointer dereference of dev_name
	scsi: libfc: free skb when receiving invalid flogi resp
	platform/x86: Fix unmet dependency warning for SAMSUNG_Q10
	cifs: fix computation for MAX_SMB2_HDR_SIZE
	x86/kexec: Don't setup EFI info if EFI runtime is not enabled
	x86_64: increase stack size for KASAN_EXTRA
	mm, memory_hotplug: is_mem_section_removable do not pass the end of a zone
	mm, memory_hotplug: test_pages_in_a_zone do not pass the end of zone
	fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
	autofs: drop dentry reference only when it is never used
	autofs: fix error return in autofs_fill_super()
	ARM: pxa: ssp: unneeded to free devm_ allocated data
	irqchip/mmp: Only touch the PJ4 IRQ & FIQ bits on enable/disable
	dmaengine: at_xdmac: Fix wrongfull report of a channel as in use
	dmaengine: dmatest: Abort test in case of mapping error
	s390/qeth: fix use-after-free in error path
	perf symbols: Filter out hidden symbols from labels
	MIPS: Remove function size check in get_frame_info()
	Input: wacom_serial4 - add support for Wacom ArtPad II tablet
	Input: elan_i2c - add id for touchpad found in Lenovo s21e-20
	iscsi_ibft: Fix missing break in switch statement
	futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock()
	ARM: dts: exynos: Add minimal clkout parameters to Exynos3250 PMU
	Revert "x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls"
	ARM: dts: exynos: Do not ignore real-world fuse values for thermal zone 0 on Exynos5420
	udplite: call proper backlog handlers
	netfilter: x_tables: enforce nul-terminated table name from getsockopt GET_ENTRIES
	netfilter: nfnetlink_log: just returns error for unknown command
	netfilter: nfnetlink_acct: validate NFACCT_FILTER parameters
	netfilter: nf_conntrack_tcp: Fix stack out of bounds when parsing TCP options
	KEYS: restrict /proc/keys by credentials at open time
	l2tp: fix infoleak in l2tp_ip6_recvmsg()
	net: hsr: fix memory leak in hsr_dev_finalize()
	net: sit: fix UBSAN Undefined behaviour in check_6rd
	net/x25: fix use-after-free in x25_device_event()
	net/x25: reset state in x25_connect()
	pptp: dst_release sk_dst_cache in pptp_sock_destruct
	ravb: Decrease TxFIFO depth of Q3 and Q2 to one
	route: set the deleted fnhe fnhe_daddr to 0 in ip_del_fnhe to fix a race
	tcp: handle inet_csk_reqsk_queue_add() failures
	net/mlx4_core: Fix reset flow when in command polling mode
	net/mlx4_core: Fix qp mtt size calculation
	net/x25: fix a race in x25_bind()
	mdio_bus: Fix use-after-free on device_register fails
	net: Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255
	missing barriers in some of unix_sock ->addr and ->path accesses
	ipvlan: disallow userns cap_net_admin to change global mode/flags
	vxlan: test dev->flags & IFF_UP before calling gro_cells_receive()
	vxlan: Fix GRO cells race condition between receive and link delete
	net/hsr: fix possible crash in add_timer()
	gro_cells: make sure device is up in gro_cells_receive()
	tcp/dccp: remove reqsk_put() from inet_child_forget()
	ALSA: bebob: use more identical mod_alias for Saffire Pro 10 I/O against Liquid Saffire 56
	fs/9p: use fscache mutex rather than spinlock
	It's wrong to add len to sector_nr in raid10 reshape twice
	media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()
	9p: use inode->i_lock to protect i_size_write() under 32-bit
	9p/net: fix memory leak in p9_client_create
	ASoC: fsl_esai: fix register setting issue in RIGHT_J mode
	stm class: Fix an endless loop in channel allocation
	crypto: caam - fixed handling of sg list
	crypto: ahash - fix another early termination in hash walk
	gpu: ipu-v3: Fix i.MX51 CSI control registers offset
	gpu: ipu-v3: Fix CSI offsets for imx53
	s390/dasd: fix using offset into zero size array error
	ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
	Input: matrix_keypad - use flush_delayed_work()
	i2c: cadence: Fix the hold bit setting
	Input: st-keyscan - fix potential zalloc NULL dereference
	ARM: 8824/1: fix a migrating irq bug when hotplug cpu
	assoc_array: Fix shortcut creation
	scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
	net: systemport: Fix reception of BPDUs
	pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
	net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
	ASoC: topology: free created components in tplg load error
	arm64: Relax GIC version check during early boot
	tmpfs: fix link accounting when a tmpfile is linked in
	ARC: uacces: remove lp_start, lp_end from clobber list
	phonet: fix building with clang
	mac80211_hwsim: propagate genlmsg_reply return code
	net: set static variable an initial value in atl2_probe()
	tmpfs: fix uninitialized return value in shmem_link
	stm class: Prevent division by zero
	crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling
	CIFS: Fix read after write for files with read caching
	tracing: Do not free iter->trace in fail path of tracing_open_pipe()
	ACPI / device_sysfs: Avoid OF modalias creation for removed device
	regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
	regulator: s2mpa01: Fix step values for some LDOs
	clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
	clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
	s390/virtio: handle find on invalid queue gracefully
	scsi: virtio_scsi: don't send sc payload with tmfs
	scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
	m68k: Add -ffreestanding to CFLAGS
	btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
	Btrfs: fix corruption reading shared and compressed extents after hole punching
	crypto: pcbc - remove bogus memcpy()s with src == dest
	cpufreq: tegra124: add missing of_node_put()
	cpufreq: pxa2xx: remove incorrect __init annotation
	ext4: fix crash during online resizing
	ext2: Fix underflow in ext2_max_size()
	clk: ingenic: Fix round_rate misbehaving with non-integer dividers
	dmaengine: usb-dmac: Make DMAC system sleep callbacks explicit
	mm/vmalloc: fix size check for remap_vmalloc_range_partial()
	kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
	intel_th: Don't reference unassigned outputs
	parport_pc: fix find_superio io compare code, should use equal test.
	i2c: tegra: fix maximum transfer size
	perf bench: Copy kernel files needed to build mem{cpy,set} x86_64 benchmarks
	serial: 8250_pci: Fix number of ports for ACCES serial cards
	serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
	jbd2: clear dirty flag when revoking a buffer from an older transaction
	jbd2: fix compile warning when using JBUFFER_TRACE
	powerpc/32: Clear on-stack exception marker upon exception return
	powerpc/wii: properly disable use of BATs when requested.
	powerpc/powernv: Make opal log only readable by root
	powerpc/83xx: Also save/restore SPRG4-7 during suspend
	ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify
	dm: fix to_sector() for 32bit
	NFS41: pop some layoutget errors to application
	perf intel-pt: Fix CYC timestamp calculation after OVF
	perf auxtrace: Define auxtrace record alignment
	perf intel-pt: Fix overlap calculation for padding
	md: Fix failed allocation of md_register_thread
	NFS: Fix an I/O request leakage in nfs_do_recoalesce
	NFS: Don't recoalesce on error in nfs_pageio_complete_mirror()
	nfsd: fix memory corruption caused by readdir
	nfsd: fix wrong check in write_v4_end_grace()
	PM / wakeup: Rework wakeup source timer cancellation
	rcu: Do RCU GP kthread self-wakeup from softirq and interrupt
	media: uvcvideo: Avoid NULL pointer dereference at the end of streaming
	drm/radeon/evergreen_cs: fix missing break in switch statement
	KVM: nVMX: Sign extend displacements of VMX instr's mem operands
	KVM: nVMX: Ignore limit checks on VMX instructions using flat segments
	KVM: X86: Fix residual mmio emulation request to userspace
	Linux 4.4.177

Change-Id: Ia33b88c9634e04612874d79ce4cc166e8aa8096a
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-03-23 09:28:32 +01:00
Vineet Gupta
225bbd61b3 ARC: uacces: remove lp_start, lp_end from clobber list
[ Upstream commit d5e3c55e01d8b1774b37b4647c30fb22f1d39077 ]

Newer ARC gcc handles lp_start, lp_end in a different way and doesn't
like them in the clobber list.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-23 08:44:34 +01:00
Eugeniy Paltsev
e120f9d859 ARC: fix __ffs return value to avoid build warnings
[ Upstream commit 4e868f8419cb4cb558c5d428e7ab5629cef864c7 ]

|  CC      mm/nobootmem.o
|In file included from ./include/asm-generic/bug.h:18:0,
|                 from ./arch/arc/include/asm/bug.h:32,
|                 from ./include/linux/bug.h:5,
|                 from ./include/linux/mmdebug.h:5,
|                 from ./include/linux/gfp.h:5,
|                 from ./include/linux/slab.h:15,
|                 from mm/nobootmem.c:14:
|mm/nobootmem.c: In function '__free_pages_memory':
|./include/linux/kernel.h:845:29: warning: comparison of distinct pointer types lacks a cast
|   (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
|                             ^
|./include/linux/kernel.h:859:4: note: in expansion of macro '__typecheck'
|   (__typecheck(x, y) && __no_side_effects(x, y))
|    ^~~~~~~~~~~
|./include/linux/kernel.h:869:24: note: in expansion of macro '__safe_cmp'
|  __builtin_choose_expr(__safe_cmp(x, y), \
|                        ^~~~~~~~~~
|./include/linux/kernel.h:878:19: note: in expansion of macro '__careful_cmp'
| #define min(x, y) __careful_cmp(x, y, <)
|                   ^~~~~~~~~~~~~
|mm/nobootmem.c:104:11: note: in expansion of macro 'min'
|   order = min(MAX_ORDER - 1UL, __ffs(start));

Change __ffs return value from 'int' to 'unsigned long' as it
is done in other implementations (like asm-generic, x86, etc...)
to avoid build-time warnings in places where type is strictly
checked.

As __ffs may return values in [0-31] interval changing return
type to unsigned is valid.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-23 08:44:19 +01:00
Eugeniy Paltsev
2c2433eba1 ARCv2: Enable unaligned access in early ASM code
commit 252f6e8eae909bc075a1b1e3b9efb095ae4c0b56 upstream.

It is currently done in arc_init_IRQ() which might be too late
considering gcc 7.3.1 onwards (GNU 2018.03) generates unaligned
memory accesses by default

Cc: stable@vger.kernel.org #4.4+
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: rewrote changelog]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 08:44:18 +01:00
Greg Kroah-Hartman
a95e76973d This is the 4.4.173 stable release
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Merge 4.4.173 into android-4.4-p

Changes in 4.4.173
	net: Fix usage of pskb_trim_rcsum
	openvswitch: Avoid OOB read when parsing flow nlattrs
	net: ipv4: Fix memory leak in network namespace dismantle
	net_sched: refetch skb protocol for each filter
	net: bridge: Fix ethernet header pointer before check skb forwardable
	USB: serial: simple: add Motorola Tetra TPG2200 device id
	USB: serial: pl2303: add new PID to support PL2303TB
	ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages
	ARC: perf: map generic branches to correct hardware condition
	s390/early: improve machine detection
	s390/smp: fix CPU hotplug deadlock with CPU rescan
	char/mwave: fix potential Spectre v1 vulnerability
	staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1
	tty: Handle problem if line discipline does not have receive_buf
	tty/n_hdlc: fix __might_sleep warning
	CIFS: Fix possible hang during async MTU reads and writes
	Input: xpad - add support for SteelSeries Stratus Duo
	KVM: x86: Fix single-step debugging
	x86/kaslr: Fix incorrect i8254 outb() parameters
	can: dev: __can_get_echo_skb(): fix bogous check for non-existing skb by removing it
	can: bcm: check timer values before ktime conversion
	vt: invoke notifier on screen size change
	perf unwind: Unwind with libdw doesn't take symfs into account
	perf unwind: Take pgoff into account when reporting elf to libdwfl
	irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size
	arm64: mm: remove page_mapping check in __sync_icache_dcache
	f2fs: read page index before freeing
	Revert "loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()"
	Revert "loop: Get rid of loop_index_mutex"
	Revert "loop: Fold __loop_release into loop_release"
	s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU
	fs: add the fsnotify call to vfs_iter_write
	ipv6: Consider sk_bound_dev_if when binding a socket to an address
	l2tp: copy 4 more bytes to linear part if necessary
	net/mlx4_core: Add masking for a few queries on HCA caps
	netrom: switch to sock timer API
	net/rose: fix NULL ax25_cb kernel panic
	ucc_geth: Reset BQL queue when stopping device
	l2tp: remove l2specific_len dependency in l2tp_core
	l2tp: fix reading optional fields of L2TPv3
	CIFS: Do not count -ENODATA as failure for query directory
	fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
	ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment
	arm64: hyp-stub: Forbid kprobing of the hyp-stub
	gfs2: Revert "Fix loop in gfs2_rbm_find"
	platform/x86: asus-nb-wmi: Map 0x35 to KEY_SCREENLOCK
	platform/x86: asus-nb-wmi: Drop mapping of 0x33 and 0x34 scan codes
	mmc: sdhci-iproc: handle mmc_of_parse() errors during probe
	kernel/exit.c: release ptraced tasks before zap_pid_ns_processes
	mm, oom: fix use-after-free in oom_kill_process
	cifs: Always resolve hostname before reconnecting
	drivers: core: Remove glue dirs from sysfs earlier
	mm: migrate: don't rely on __PageMovable() of newpage after unlocking it
	fs: don't scan the inode cache before SB_BORN is set
	Linux 4.4.173

Change-Id: Id606123657ad357fd2cd5f665a725f78b7c3e819
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-02-07 09:39:13 +01:00
Eugeniy Paltsev
c25a126d1a ARC: perf: map generic branches to correct hardware condition
commit 3affbf0e154ee351add6fcc254c59c3f3947fa8f upstream.

So far we've mapped branches to "ijmp" which also counts conditional
branches NOT taken. This makes us different from other architectures
such as ARM which seem to be counting only taken branches.

So use "ijmptak" hardware condition which only counts (all jump
instructions that are taken)

'ijmptak' event is available on both ARCompact and ARCv2 ISA based
cores.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: reworked changelog]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-06 19:43:03 +01:00
Greg Kroah-Hartman
908e869944 This is the 4.4.169 stable release
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Merge 4.4.169 into android-4.4-p

Changes in 4.4.169
	lib/interval_tree_test.c: make test options module parameters
	lib/interval_tree_test.c: allow full tree search
	lib/rbtree_test.c: make input module parameters
	lib/rbtree-test: lower default params
	lib/interval_tree_test.c: allow users to limit scope of endpoint
	timer/debug: Change /proc/timer_list from 0444 to 0400
	powerpc/boot: Fix random libfdt related build errors
	pinctrl: sunxi: a83t: Fix IRQ offset typo for PH11
	aio: fix spectre gadget in lookup_ioctx
	MMC: OMAP: fix broken MMC on OMAP15XX/OMAP5910/OMAP310
	tracing: Fix memory leak in set_trigger_filter()
	tracing: Fix memory leak of instance function hash filters
	powerpc/msi: Fix NULL pointer access in teardown code
	Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec"
	f2fs: fix a panic caused by NULL flush_cmd_control
	mac80211: don't WARN on bad WMM parameters from buggy APs
	mac80211: Fix condition validating WMM IE
	mac80211_hwsim: fix module init error paths for netlink
	scsi: libiscsi: Fix NULL pointer dereference in iscsi_eh_session_reset
	scsi: vmw_pscsi: Rearrange code to avoid multiple calls to free_irq during unload
	x86/earlyprintk/efi: Fix infinite loop on some screen widths
	drm/msm: Grab a vblank reference when waiting for commit_done
	ARC: io.h: Implement reads{x}()/writes{x}()
	bonding: fix 802.3ad state sent to partner when unbinding slave
	SUNRPC: Fix a potential race in xprt_connect()
	sbus: char: add of_node_put()
	drivers/sbus/char: add of_node_put()
	drivers/tty: add missing of_node_put()
	ide: pmac: add of_node_put()
	clk: mmp: Off by one in mmp_clk_add()
	Input: omap-keypad - fix keyboard debounce configuration
	libata: whitelist all SAMSUNG MZ7KM* solid-state disks
	mv88e6060: disable hardware level MAC learning
	ARM: 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address handling
	cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure cifs)
	i2c: axxia: properly handle master timeout
	i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node
	rtc: snvs: add a missing write sync
	rtc: snvs: Add timeouts to avoid kernel lockups
	ALSA: isa/wavefront: prevent some out of bound writes
	Linux 4.4.169

Change-Id: Ic00ba639ef8c4d6fbe19c872b33f30af7371971d
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-12-21 14:36:51 +01:00
Jose Abreu
44b4717e50 ARC: io.h: Implement reads{x}()/writes{x}()
[ Upstream commit 10d443431dc2bb733cf7add99b453e3fb9047a2e ]

Some ARC CPU's do not support unaligned loads/stores. Currently, generic
implementation of reads{b/w/l}()/writes{b/w/l}() is being used with ARC.
This can lead to misfunction of some drivers as generic functions do a
plain dereference of a pointer that can be unaligned.

Let's use {get/put}_unaligned() helpers instead of plain dereference of
pointer in order to fix. The helpers allow to get and store data from an
unaligned address whilst preserving the CPU internal alignment.
According to [1], the use of these helpers are costly in terms of
performance so we added an initial check for a buffer already aligned so
that the usage of the helpers can be avoided, when possible.

[1] Documentation/unaligned-memory-access.txt

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Tested-by: Vitor Soares <soares@synopsys.com>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-12-21 14:09:52 +01:00
Greg Kroah-Hartman
8fc3f01965 This is the 4.4.167 stable release
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Merge 4.4.167 into android-4.4-p

Changes in 4.4.167
	media: em28xx: Fix use-after-free when disconnecting
	Revert "wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout()"
	rapidio/rionet: do not free skb before reading its length
	s390/qeth: fix length check in SNMP processing
	usbnet: ipheth: fix potential recvmsg bug and recvmsg bug 2
	kvm: mmu: Fix race in emulated page table writes
	xtensa: enable coprocessors that are being flushed
	xtensa: fix coprocessor context offset definitions
	Btrfs: ensure path name is null terminated at btrfs_control_ioctl
	ALSA: wss: Fix invalid snd_free_pages() at error path
	ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write
	ALSA: control: Fix race between adding and removing a user element
	ALSA: sparc: Fix invalid snd_free_pages() at error path
	ext2: fix potential use after free
	dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
	dmaengine: at_hdmac: fix module unloading
	btrfs: release metadata before running delayed refs
	USB: usb-storage: Add new IDs to ums-realtek
	usb: core: quirks: add RESET_RESUME quirk for Cherry G230 Stream series
	misc: mic/scif: fix copy-paste error in scif_create_remote_lookup
	Kbuild: suppress packed-not-aligned warning for default setting only
	exec: avoid gcc-8 warning for get_task_comm
	disable stringop truncation warnings for now
	kobject: Replace strncpy with memcpy
	unifdef: use memcpy instead of strncpy
	kernfs: Replace strncpy with memcpy
	ip_tunnel: Fix name string concatenate in __ip_tunnel_create()
	drm: gma500: fix logic error
	scsi: bfa: convert to strlcpy/strlcat
	staging: rts5208: fix gcc-8 logic error warning
	kdb: use memmove instead of overlapping memcpy
	iser: set sector for ambiguous mr status errors
	uprobes: Fix handle_swbp() vs. unregister() + register() race once more
	MIPS: ralink: Fix mt7620 nd_sd pinmux
	mips: fix mips_get_syscall_arg o32 check
	drm/ast: Fix incorrect free on ioregs
	scsi: scsi_devinfo: cleanly zero-pad devinfo strings
	ALSA: trident: Suppress gcc string warning
	scsi: csiostor: Avoid content leaks and casts
	kgdboc: Fix restrict error
	kgdboc: Fix warning with module build
	leds: call led_pwm_set() in leds-pwm to enforce default LED_OFF
	leds: turn off the LED and wait for completion on unregistering LED class device
	leds: leds-gpio: Fix return value check in create_gpio_led()
	Input: xpad - quirk all PDP Xbox One gamepads
	Input: matrix_keypad - check for errors from of_get_named_gpio()
	Input: elan_i2c - add ELAN0620 to the ACPI table
	Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
	Input: elan_i2c - add support for ELAN0621 touchpad
	btrfs: Always try all copies when reading extent buffers
	Btrfs: fix use-after-free when dumping free space
	ARC: change defconfig defaults to ARCv2
	arc: [devboards] Add support of NFSv3 ACL
	mm: cleancache: fix corruption on missed inode invalidation
	mm: mlock: avoid increase mm->locked_vm on mlock() when already mlock2(,MLOCK_ONFAULT)
	usb: gadget: dummy: fix nonsensical comparisons
	iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()
	iommu/ipmmu-vmsa: Fix crash on early domain free
	can: rcar_can: Fix erroneous registration
	batman-adv: Expand merged fragment buffer for full packet
	bnx2x: Assign unique DMAE channel number for FW DMAE transactions.
	qed: Fix PTT leak in qed_drain()
	qed: Fix reading wrong value in loop condition
	net/mlx4_core: Zero out lkey field in SW2HW_MPT fw command
	net/mlx4_core: Fix uninitialized variable compilation warning
	net/mlx4: Fix UBSAN warning of signed integer overflow
	net: faraday: ftmac100: remove netif_running(netdev) check before disabling interrupts
	iommu/vt-d: Use memunmap to free memremap
	net: amd: add missing of_node_put()
	usb: quirk: add no-LPM quirk on SanDisk Ultra Flair device
	usb: appledisplay: Add 27" Apple Cinema Display
	USB: check usb_get_extra_descriptor for proper size
	ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c
	ALSA: hda: Add support for AMD Stoney Ridge
	ALSA: pcm: Fix starvation on down_write_nonblock()
	ALSA: pcm: Call snd_pcm_unlink() conditionally at closing
	ALSA: pcm: Fix interval evaluation with openmin/max
	virtio/s390: avoid race on vcdev->config
	virtio/s390: fix race in ccw_io_helper()
	SUNRPC: Fix leak of krb5p encode pages
	xhci: Prevent U1/U2 link pm states if exit latency is too long
	Staging: lustre: remove two build warnings
	cifs: Fix separator when building path from dentry
	tty: serial: 8250_mtk: always resume the device in probe.
	kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()
	mac80211_hwsim: Timer should be initialized before device registered
	mac80211: Clear beacon_int in ieee80211_do_stop
	mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext
	mac80211: fix reordering of buffered broadcast packets
	mac80211: ignore NullFunc frames in the duplicate detection
	Linux 4.4.167

Change-Id: I67673edf3244cb17523bfb13f256d5b3ddd1bcba
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-12-13 09:44:10 +01:00
Alexey Brodkin
4d0afb8b19 arc: [devboards] Add support of NFSv3 ACL
commit 6b04114f6fae5e84d33404c2970b1949c032546e upstream.

By default NFSv3 doesn't support ACL (Access Control Lists)
which might be quite convenient to have so that
mounted NFS behaves exactly as any other local file-system.

In particular missing support of ACL makes umask useless.
This among other thigs fixes Glibc's "nptl/tst-umask1".

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Cupertino Miranda <cmiranda@synopsys.com>
Cc: stable@vger.kernel.org	#4.14+
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-13 09:21:33 +01:00
Kevin Hilman
d473a00bd8 ARC: change defconfig defaults to ARCv2
commit b7cc40c32a8bfa6f2581a71747f6a7d491fe43ba upstream.

Change the default defconfig (used with 'make defconfig') to the ARCv2
nsim_hs_defconfig, and also switch the default Kconfig ISA selection to
ARCv2.

This allows several default defconfigs (e.g. make defconfig, make
allnoconfig, make tinyconfig) to all work with ARCv2 by default.

Note since we change default architecture from ARCompact to ARCv2
it's required to explicitly mention architecture type in ARCompact
defconfigs otherwise ARCv2 will be implied and binaries will be
generated for ARCv2.

Cc: <stable@vger.kernel.org> # 4.4.x
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-13 09:21:32 +01:00
Greg Kroah-Hartman
0c50cd92c5 This is the 4.4.162 stable release
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Merge 4.4.162 into android-4.4-p

Changes in 4.4.162
	ASoC: wm8804: Add ACPI support
	ASoC: sigmadsp: safeload should not have lower byte limit
	selftests/efivarfs: add required kernel configs
	mfd: omap-usb-host: Fix dts probe of children
	sound: enable interrupt after dma buffer initialization
	stmmac: fix valid numbers of unicast filter entries
	net: macb: disable scatter-gather for macb on sama5d3
	ARM: dts: at91: add new compatibility string for macb on sama5d3
	drm/amdgpu: Fix SDMA HQD destroy error on gfx_v7
	ext4: add corruption check in ext4_xattr_set_entry()
	mm/vmstat.c: fix outdated vmstat_text
	mach64: detect the dot clock divider correctly on sparc
	perf script python: Fix export-to-postgresql.py occasional failure
	i2c: i2c-scmi: fix for i2c_smbus_write_block_data
	xhci: Don't print a warning when setting link state for disabled ports
	jffs2: return -ERANGE when xattr buffer is too small
	bnxt_en: Fix TX timeout during netpoll.
	bonding: avoid possible dead-lock
	ip6_tunnel: be careful when accessing the inner header
	ip_tunnel: be careful when accessing the inner header
	ipv4: fix use-after-free in ip_cmsg_recv_dstaddr()
	net: ipv4: update fnhe_pmtu when first hop's MTU changes
	net/ipv6: Display all addresses in output of /proc/net/if_inet6
	netlabel: check for IPV4MASK in addrinfo_get
	net/usb: cancel pending work when unbinding smsc75xx
	qlcnic: fix Tx descriptor corruption on 82xx devices
	team: Forbid enslaving team device to itself
	net: mvpp2: Extract the correct ethtype from the skb for tx csum offload
	net: systemport: Fix wake-up interrupt race during resume
	rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096
	KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
	x86/fpu: Remove use_eager_fpu()
	x86/fpu: Remove struct fpu::counter
	x86/fpu: Finish excising 'eagerfpu'
	media: af9035: prevent buffer overflow on write
	clocksource/drivers/ti-32k: Add CLOCK_SOURCE_SUSPEND_NONSTOP flag for non-am43 SoCs
	Input: atakbd - fix Atari keymap
	Input: atakbd - fix Atari CapsLock behaviour
	net/mlx4: Use cpumask_available for eq->affinity_mask
	powerpc/tm: Fix userspace r13 corruption
	powerpc/tm: Avoid possible userspace r1 corruption on reclaim
	ARC: build: Get rid of toolchain check
	usb: gadget: serial: fix oops when data rx'd after close
	Drivers: hv: utils: Invoke the poll function after handshake
	Drivers: hv: util: Pass the channel information during the init call
	Drivers: hv: kvp: fix IP Failover
	HV: properly delay KVP packets when negotiation is in progress
	Linux 4.4.162

Change-Id: I70efa929e8fd08d28228e251d276847cfdfb0bac
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-10-20 16:34:55 +02:00
Alexey Brodkin
466dda64e4 ARC: build: Get rid of toolchain check
commit 615f64458ad890ef94abc879a66d8b27236e733a upstream.

This check is very naive: we simply test if GCC invoked without
"-mcpu=XXX" has ARC700 define set. In that case we think that GCC
was built with "--with-cpu=arc700" and has libgcc built for ARC700.

Otherwise if ARC700 is not defined we think that everythng was built
for ARCv2.

But in reality our life is much more interesting.

1. Regardless of GCC configuration (i.e. what we pass in "--with-cpu"
   it may generate code for any ARC core).

2. libgcc might be built with explicitly specified "--mcpu=YYY"

That's exactly what happens in case of multilibbed toolchains:
 - GCC is configured with default settings
 - All the libs built for many different CPU flavors

I.e. that check gets in the way of usage of multilibbed
toolchains. And even non-multilibbed toolchains are affected.
OpenEmbedded also builds GCC without "--with-cpu" because
each and every target component later is compiled with explicitly
set "-mcpu=ZZZ".

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-20 09:52:38 +02:00
Greg Kroah-Hartman
285f6528db This is the 4.4.161 stable release
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Merge 4.4.161 into android-4.4-p

Changes in 4.4.161
	mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly
	fbdev/omapfb: fix omapfb_memory_read infoleak
	x86/vdso: Fix asm constraints on vDSO syscall fallbacks
	x86/vdso: Fix vDSO syscall fallback asm constraint regression
	PCI: Reprogram bridge prefetch registers on resume
	mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys
	PM / core: Clear the direct_complete flag on errors
	dm cache: fix resize crash if user doesn't reload cache table
	xhci: Add missing CAS workaround for Intel Sunrise Point xHCI
	USB: serial: simple: add Motorola Tetra MTP6550 id
	of: unittest: Disable interrupt node tests for old world MAC systems
	ext4: always verify the magic number in xattr blocks
	cgroup: Fix deadlock in cpu hotplug path
	ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait
	powerpc/fadump: Return error when fadump registration fails
	ARC: clone syscall to setp r25 as thread pointer
	ucma: fix a use-after-free in ucma_resolve_ip()
	ubifs: Check for name being NULL while mounting
	tcp: increment sk_drops for dropped rx packets
	tcp: use an RB tree for ooo receive queue
	tcp: fix a stale ooo_last_skb after a replace
	tcp: free batches of packets in tcp_prune_ofo_queue()
	tcp: call tcp_drop() from tcp_data_queue_ofo()
	tcp: add tcp_ooo_try_coalesce() helper
	ath10k: fix scan crash due to incorrect length calculation
	ebtables: arpreply: Add the standard target sanity check
	Linux 4.4.161

Change-Id: I03f9c0553ff7b197bfd896e257d5f3e1de228ed7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-10-13 11:16:52 +02:00
Vineet Gupta
b4dd80c333 ARC: clone syscall to setp r25 as thread pointer
commit c58a584f05e35d1d4342923cd7aac07d9c3d3d16 upstream.

Per ARC TLS ABI, r25 is designated TP (thread pointer register).
However so far kernel didn't do any special treatment, like setting up
usermode r25, even for CLONE_SETTLS. We instead relied on libc runtime
to do this, in say clone libc wrapper [1]. This was deliberate to keep
kernel ABI agnostic (userspace could potentially change TP, specially
for different ARC ISA say ARCompact vs. ARCv2 with different spare
registers etc)

However userspace setting up r25, after clone syscall opens a race, if
child is not scheduled and gets a signal instead. It starts off in
userspace not in clone but in a signal handler and anything TP sepcific
there such as pthread_self() fails which showed up with uClibc
testsuite nptl/tst-kill6 [2]

Fix this by having kernel populate r25 to TP value. So this locks in
ABI, but it was not going to change anyways, and fwiw is same for both
ARCompact (arc700 core) and ARCvs (HS3x cores)

[1] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/tree/libc/sysdeps/linux/arc/clone.S
[2] https://github.com/wbx-github/uclibc-ng-test/blob/master/test/nptl/tst-kill6.c

Fixes: ARC STAR 9001378481
Cc: stable@vger.kernel.org
Reported-by: Nikita Sobolev <sobolev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-13 09:11:34 +02:00
Greg Kroah-Hartman
a29988a1dc This is the 4.4.157 stable release
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Merge 4.4.157 into android-4.4-p

Changes in 4.4.157
	i2c: xiic: Make the start and the byte count write atomic
	i2c: i801: fix DNV's SMBCTRL register offset
	ALSA: hda - Fix cancel_work_sync() stall from jackpoll work
	cfq: Give a chance for arming slice idle timer in case of group_idle
	kthread: Fix use-after-free if kthread fork fails
	kthread: fix boot hang (regression) on MIPS/OpenRISC
	staging: rt5208: Fix a sleep-in-atomic bug in xd_copy_page
	staging/rts5208: Fix read overflow in memcpy
	block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg
	locking/rwsem-xadd: Fix missed wakeup due to reordering of load
	selinux: use GFP_NOWAIT in the AVC kmem_caches
	locking/osq_lock: Fix osq_lock queue corruption
	ARC: [plat-axs*]: Enable SWAP
	misc: mic: SCIF Fix scif_get_new_port() error handling
	ethtool: Remove trailing semicolon for static inline
	Bluetooth: h5: Fix missing dependency on BT_HCIUART_SERDEV
	gpio: tegra: Move driver registration to subsys_init level
	scsi: target: fix __transport_register_session locking
	md/raid5: fix data corruption of replacements after originals dropped
	misc: ti-st: Fix memory leak in the error path of probe()
	uio: potential double frees if __uio_register_device() fails
	tty: rocket: Fix possible buffer overwrite on register_PCI
	f2fs: do not set free of current section
	perf tools: Allow overriding MAX_NR_CPUS at compile time
	NFSv4.0 fix client reference leak in callback
	macintosh/via-pmu: Add missing mmio accessors
	ath10k: prevent active scans on potential unusable channels
	MIPS: Fix ISA virt/bus conversion for non-zero PHYS_OFFSET
	ata: libahci: Correct setting of DEVSLP register
	scsi: 3ware: fix return 0 on the error path of probe
	ath10k: disable bundle mgmt tx completion event support
	Bluetooth: hidp: Fix handling of strncpy for hid->name information
	x86/mm: Remove in_nmi() warning from vmalloc_fault()
	gpio: ml-ioh: Fix buffer underwrite on probe error path
	net: mvneta: fix mtu change on port without link
	MIPS: Octeon: add missing of_node_put()
	net: dcb: For wild-card lookups, use priority -1, not 0
	Input: atmel_mxt_ts - only use first T9 instance
	partitions/aix: append null character to print data from disk
	partitions/aix: fix usage of uninitialized lv_info and lvname structures
	iommu/ipmmu-vmsa: Fix allocation in atomic context
	mfd: ti_am335x_tscadc: Fix struct clk memory leak
	f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize
	MIPS: WARN_ON invalid DMA cache maintenance, not BUG_ON
	RDMA/cma: Do not ignore net namespace for unbound cm_id
	xhci: Fix use-after-free in xhci_free_virt_device
	vmw_balloon: include asm/io.h
	netfilter: x_tables: avoid stack-out-of-bounds read in xt_copy_counters_from_user
	drivers: net: cpsw: fix parsing of phy-handle DT property in dual_emac config
	net: ethernet: ti: cpsw: fix mdio device reference leak
	ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle
	crypto: vmx - Fix sleep-in-atomic bugs
	mtd: ubi: wl: Fix error return code in ubi_wl_init()
	autofs: fix autofs_sbi() does not check super block type
	x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+
	mm: get rid of vmacache_flush_all() entirely
	Linux 4.4.157

Change-Id: I08e4c24c1a22ef0e97f9185bc9da72f4a651ca73
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-09-20 11:32:31 +02:00
Alexey Brodkin
e3efb7699a ARC: [plat-axs*]: Enable SWAP
commit c83532fb0fe053d2e43e9387354cb1b52ba26427 upstream.

SWAP support on ARC was fixed earlier by
commit 6e3761145a9b ("ARC: Fix CONFIG_SWAP")
so now we may safely enable it on platforms that
have external media like USB and SD-card.

Note: it was already allowed for HSDK

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: stable@vger.kernel.org # 6e3761145a9b: ARC: Fix CONFIG_SWAP
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-19 22:48:56 +02:00
Greg Kroah-Hartman
34175ba3f5 This is the 4.4.154 stable release
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Merge 4.4.154 into android-4.4-p

Changes in 4.4.154
	sched/sysctl: Check user input value of sysctl_sched_time_avg
	Cipso: cipso_v4_optptr enter infinite loop
	vti6: fix PMTU caching and reporting on xmit
	xfrm: fix missing dst_release() after policy blocking lbcast and multicast
	xfrm: free skb if nlsk pointer is NULL
	mac80211: add stations tied to AP_VLANs during hw reconfig
	nl80211: Add a missing break in parse_station_flags
	drm/bridge: adv7511: Reset registers on hotplug
	scsi: libiscsi: fix possible NULL pointer dereference in case of TMF
	drm/imx: imx-ldb: disable LDB on driver bind
	drm/imx: imx-ldb: check if channel is enabled before printing warning
	usb: gadget: r8a66597: Fix two possible sleep-in-atomic-context bugs in init_controller()
	usb: gadget: r8a66597: Fix a possible sleep-in-atomic-context bugs in r8a66597_queue()
	usb/phy: fix PPC64 build errors in phy-fsl-usb.c
	tools: usb: ffs-test: Fix build on big endian systems
	usb: gadget: f_uac2: fix endianness of 'struct cntrl_*_lay3'
	tools/power turbostat: fix -S on UP systems
	net: caif: Add a missing rcu_read_unlock() in caif_flow_cb
	qed: Fix possible race for the link state value.
	atl1c: reserve min skb headroom
	net: prevent ISA drivers from building on PPC32
	can: mpc5xxx_can: check of_iomap return before use
	i2c: davinci: Avoid zero value of CLKH
	media: staging: omap4iss: Include asm/cacheflush.h after generic includes
	bnx2x: Fix invalid memory access in rss hash config path.
	net: axienet: Fix double deregister of mdio
	fscache: Allow cancelled operations to be enqueued
	cachefiles: Fix refcounting bug in backing-file read monitoring
	cachefiles: Wait rather than BUG'ing on "Unexpected object collision"
	selftests/ftrace: Add snapshot and tracing_on test case
	zswap: re-check zswap_is_full() after do zswap_shrink()
	tools/power turbostat: Read extended processor family from CPUID
	Revert "MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum"
	enic: handle mtu change for vf properly
	arc: fix build errors in arc/include/asm/delay.h
	arc: fix type warnings in arc/mm/cache.c
	drivers: net: lmc: fix case value for target abort error
	scsi: fcoe: drop frames in ELS LOGO error path
	scsi: vmw_pvscsi: Return DID_RESET for status SAM_STAT_COMMAND_TERMINATED
	mm/memory.c: check return value of ioremap_prot
	cifs: add missing debug entries for kconfig options
	cifs: check kmalloc before use
	smb3: Do not send SMB3 SET_INFO if nothing changed
	smb3: don't request leases in symlink creation and query
	btrfs: don't leak ret from do_chunk_alloc
	s390/kvm: fix deadlock when killed by oom
	ext4: check for NUL characters in extended attribute's name
	ext4: sysfs: print ext4_super_block fields as little-endian
	ext4: reset error code in ext4_find_entry in fallback
	arm64: mm: check for upper PAGE_SHIFT bits in pfn_valid()
	KVM: arm/arm64: Skip updating PTE entry if no change
	KVM: arm/arm64: Skip updating PMD entry if no change
	x86/speculation/l1tf: Fix overflow in l1tf_pfn_limit() on 32bit
	x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM
	x86/speculation/l1tf: Suggest what to do on systems with too much RAM
	x86/process: Re-export start_thread()
	fuse: Don't access pipe->buffers without pipe_lock()
	fuse: fix double request_end()
	fuse: fix unlocked access to processing queue
	fuse: umount should wait for all requests
	fuse: Fix oops at process_init_reply()
	fuse: Add missed unlock_page() to fuse_readpages_fill()
	udl-kms: change down_interruptible to down
	udl-kms: handle allocation failure
	udl-kms: fix crash due to uninitialized memory
	ASoC: dpcm: don't merge format from invalid codec dai
	ASoC: sirf: Fix potential NULL pointer dereference
	pinctrl: freescale: off by one in imx1_pinconf_group_dbg_show()
	x86/irqflags: Mark native_restore_fl extern inline
	x86/spectre: Add missing family 6 check to microcode check
	s390: fix br_r1_trampoline for machines without exrl
	s390/qdio: reset old sbal_state flags
	s390/pci: fix out of bounds access during irq setup
	kprobes: Make list and blacklist root user read only
	MIPS: Correct the 64-bit DSP accumulator register size
	MIPS: lib: Provide MIPS64r6 __multi3() for GCC < 7
	scsi: sysfs: Introduce sysfs_{un,}break_active_protection()
	scsi: core: Avoid that SCSI device removal through sysfs triggers a deadlock
	iscsi target: fix session creation failure handling
	cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
	Linux 4.4.154

Change-Id: I1d173ebf72efb115b4889880cc2989b0ca7d751e
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-09-05 11:37:57 +02:00
Randy Dunlap
21d36c9737 arc: fix type warnings in arc/mm/cache.c
[ Upstream commit ec837d620c750c0d4996a907c8c4f7febe1bbeee ]

Fix type warnings in arch/arc/mm/cache.c.

../arch/arc/mm/cache.c: In function 'flush_anon_page':
../arch/arc/mm/cache.c:1062:55: warning: passing argument 2 of '__flush_dcache_page' makes integer from pointer without a cast [-Wint-conversion]
  __flush_dcache_page((phys_addr_t)page_address(page), page_address(page));
                                                       ^~~~~~~~~~~~~~~~~~
../arch/arc/mm/cache.c:1013:59: note: expected 'long unsigned int' but argument is of type 'void *'
 void __flush_dcache_page(phys_addr_t paddr, unsigned long vaddr)
                                             ~~~~~~~~~~~~~~^~~~~

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Elad Kanfi <eladkan@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Ofer Levi <oferle@mellanox.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:18:36 +02:00
Randy Dunlap
ef33fed053 arc: fix build errors in arc/include/asm/delay.h
[ Upstream commit 2423665ec53f2a29191b35382075e9834288a975 ]

Fix build errors in arch/arc/'s delay.h:
- add "extern unsigned long loops_per_jiffy;"
- add <asm-generic/types.h> for "u64"

In file included from ../drivers/infiniband/hw/cxgb3/cxio_hal.c:32:
../arch/arc/include/asm/delay.h: In function '__udelay':
../arch/arc/include/asm/delay.h:61:12: error: 'u64' undeclared (first use in this function)
  loops = ((u64) usecs * 4295 * HZ * loops_per_jiffy) >> 32;
            ^~~

In file included from ../drivers/infiniband/hw/cxgb3/cxio_hal.c:32:
../arch/arc/include/asm/delay.h: In function '__udelay':
../arch/arc/include/asm/delay.h:63:37: error: 'loops_per_jiffy' undeclared (first use in this function)
  loops = ((u64) usecs * 4295 * HZ * loops_per_jiffy) >> 32;
                                     ^~~~~~~~~~~~~~~

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Elad Kanfi <eladkan@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Ofer Levi <oferle@mellanox.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:18:36 +02:00
Greg Kroah-Hartman
47952b2b5f This is the 4.4.152 stable release
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Merge 4.4.152 into android-4.4-p

Changes in 4.4.152
	ARC: Explicitly add -mmedium-calls to CFLAGS
	netfilter: ipv6: nf_defrag: reduce struct net memory waste
	selftests: pstore: return Kselftest Skip code for skipped tests
	selftests: static_keys: return Kselftest Skip code for skipped tests
	selftests: user: return Kselftest Skip code for skipped tests
	selftests: zram: return Kselftest Skip code for skipped tests
	selftests: sync: add config fragment for testing sync framework
	ARM: dts: Cygnus: Fix I2C controller interrupt type
	usb: dwc2: fix isoc split in transfer with no data
	usb: gadget: composite: fix delayed_status race condition when set_interface
	usb: gadget: dwc2: fix memory leak in gadget_init()
	scsi: xen-scsifront: add error handling for xenbus_printf
	arm64: make secondary_start_kernel() notrace
	qed: Add sanity check for SIMD fastpath handler.
	enic: initialize enic->rfs_h.lock in enic_probe
	net: hamradio: use eth_broadcast_addr
	net: propagate dev_get_valid_name return code
	ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP
	net: davinci_emac: match the mdio device against its compatible if possible
	locking/lockdep: Do not record IRQ state within lockdep code
	ipv6: mcast: fix unsolicited report interval after receiving querys
	Smack: Mark inode instant in smack_task_to_inode
	cxgb4: when disabling dcb set txq dcb priority to 0
	brcmfmac: stop watchdog before detach and free everything
	ARM: dts: am437x: make edt-ft5x06 a wakeup source
	usb: xhci: increase CRS timeout value
	perf test session topology: Fix test on s390
	perf report powerpc: Fix crash if callchain is empty
	selftests/x86/sigreturn/64: Fix spurious failures on AMD CPUs
	ARM: dts: da850: Fix interrups property for gpio
	dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
	md/raid10: fix that replacement cannot complete recovery after reassemble
	drm/exynos: gsc: Fix support for NV16/61, YUV420/YVU420 and YUV422 modes
	drm/exynos: decon5433: Fix per-plane global alpha for XRGB modes
	drm/exynos: decon5433: Fix WINCONx reset value
	bnx2x: Fix receiving tx-timeout in error or recovery state.
	m68k: fix "bad page state" oops on ColdFire boot
	HID: wacom: Correct touch maximum XY of 2nd-gen Intuos
	ARM: imx_v6_v7_defconfig: Select ULPI support
	ARM: imx_v4_v5_defconfig: Select ULPI support
	tracing: Use __printf markup to silence compiler
	kasan: fix shadow_size calculation error in kasan_module_alloc
	smsc75xx: Add workaround for gigabit link up hardware errata.
	netfilter: x_tables: set module owner for icmp(6) matches
	ARM: pxa: irq: fix handling of ICMR registers in suspend/resume
	ieee802154: at86rf230: switch from BUG_ON() to WARN_ON() on problem
	ieee802154: at86rf230: use __func__ macro for debug messages
	ieee802154: fakelb: switch from BUG_ON() to WARN_ON() on problem
	drm/armada: fix colorkey mode property
	bnxt_en: Fix for system hang if request_irq fails
	perf llvm-utils: Remove bashism from kernel include fetch script
	ARM: 8780/1: ftrace: Only set kernel memory back to read-only after boot
	ARM: dts: am3517.dtsi: Disable reference to OMAP3 OTG controller
	ixgbe: Be more careful when modifying MAC filters
	packet: reset network header if packet shorter than ll reserved space
	qlogic: check kstrtoul() for errors
	tcp: remove DELAYED ACK events in DCTCP
	drm/nouveau/gem: off by one bugs in nouveau_gem_pushbuf_reloc_apply()
	net/ethernet/freescale/fman: fix cross-build error
	net: usb: rtl8150: demote allmulti message to dev_dbg()
	net: qca_spi: Avoid packet drop during initial sync
	net: qca_spi: Make sure the QCA7000 reset is triggered
	net: qca_spi: Fix log level if probe fails
	tcp: identify cryptic messages as TCP seq # bugs
	staging: android: ion: check for kref overflow
	KVM: irqfd: fix race between EPOLLHUP and irq_bypass_register_consumer
	ext4: fix spectre gadget in ext4_mb_regular_allocator()
	parisc: Remove ordered stores from syscall.S
	xfrm_user: prevent leaking 2 bytes of kernel memory
	netfilter: conntrack: dccp: treat SYNC/SYNCACK as invalid if no prior state
	packet: refine ring v3 block size test to hold one frame
	bridge: Propagate vlan add failure to user
	parisc: Remove unnecessary barriers from spinlock.h
	PCI: hotplug: Don't leak pci_slot on registration failure
	PCI: Skip MPS logic for Virtual Functions (VFs)
	PCI: pciehp: Fix use-after-free on unplug
	i2c: imx: Fix race condition in dma read
	reiserfs: fix broken xattr handling (heap corruption, bad retval)
	Linux 4.4.152

Change-Id: I73c1d3bcfb25d83fa0985b095a6426c207cd2726
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-08-24 13:39:05 +02:00
Alexey Brodkin
d68db3d997 ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP
[ Upstream commit 2f24ef7413a4d91657ef04e77c27ce0b313e6c95 ]

machine_desc->init_per_cpu() hook is supposed to be per cpu
initialization and would seem to apply  equally to UP and/or SMP.
Infact the comment in header file seems to suggest it works for
UP too, which was not the case and this patch.

This enables !CONFIG_SMP build for platforms such as hsdk.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: trimmeed changelog]
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-24 13:26:55 +02:00
Alexey Brodkin
97aaf73394 ARC: Explicitly add -mmedium-calls to CFLAGS
[ Upstream commit 74c11e300c103af47db5b658fdcf28002421e250 ]

GCC built for arc*-*-linux has "-mmedium-calls" implicitly enabled by default
thus we don't see any problems during Linux kernel compilation.
----------------------------->8------------------------
arc-linux-gcc -mcpu=arc700 -Q --help=target | grep calls
  -mlong-calls                          [disabled]
  -mmedium-calls                        [enabled]
----------------------------->8------------------------

But if we try to use so-called Elf32 toolchain with GCC configured for
arc*-*-elf* then we'd see the following failure:
----------------------------->8------------------------
init/do_mounts.o: In function 'init_rootfs':
do_mounts.c:(.init.text+0x108): relocation truncated to fit: R_ARC_S21W_PCREL
against symbol 'unregister_filesystem' defined in .text section in fs/filesystems.o

arc-elf32-ld: final link failed: Symbol needs debug section which does not exist
make: *** [vmlinux] Error 1
----------------------------->8------------------------

That happens because neither "-mmedium-calls" nor "-mlong-calls" are enabled in
Elf32 GCC:
----------------------------->8------------------------
arc-elf32-gcc -mcpu=arc700 -Q --help=target | grep calls
  -mlong-calls                          [disabled]
  -mmedium-calls                        [disabled]
----------------------------->8------------------------

Now to make it possible to use Elf32 toolchain for building Linux kernel
we're explicitly add "-mmedium-calls" to CFLAGS.

And since we add "-mmedium-calls" to the global CFLAGS there's no point in
having per-file copies thus removing them.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-24 13:26:53 +02:00
Greg Kroah-Hartman
0be6d716ef This is the 4.4.144 stable release
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Merge 4.4.144 into android-4.4-p

Changes in 4.4.144
	KVM/Eventfd: Avoid crash when assign and deassign specific eventfd in parallel.
	x86/MCE: Remove min interval polling limitation
	fat: fix memory allocation failure handling of match_strdup()
	ALSA: rawmidi: Change resized buffers atomically
	ARC: Fix CONFIG_SWAP
	ARC: mm: allow mprotect to make stack mappings executable
	mm: memcg: fix use after free in mem_cgroup_iter()
	ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns
	ipv6: fix useless rol32 call on hash
	lib/rhashtable: consider param->min_size when setting initial table size
	net/ipv4: Set oif in fib_compute_spec_dst
	net: phy: fix flag masking in __set_phy_supported
	ptp: fix missing break in switch
	tg3: Add higher cpu clock for 5762.
	net: Don't copy pfmemalloc flag in __copy_skb_header()
	skbuff: Unconditionally copy pfmemalloc in __skb_clone()
	xhci: Fix perceived dead host due to runtime suspend race with event handler
	x86/paravirt: Make native_save_fl() extern inline
	x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
	x86/cpufeatures: Add Intel feature bits for Speculation Control
	x86/cpufeatures: Add AMD feature bits for Speculation Control
	x86/msr: Add definitions for new speculation control MSRs
	x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
	x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
	x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
	x86/cpufeatures: Clean up Spectre v2 related CPUID flags
	x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel
	x86/pti: Mark constant arrays as __initconst
	x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs
	x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface
	x86/speculation: Update Speculation Control microcode blacklist
	x86/speculation: Correct Speculation Control microcode blacklist again
	x86/speculation: Clean up various Spectre related details
	x86/speculation: Fix up array_index_nospec_mask() asm constraint
	x86/speculation: Add <asm/msr-index.h> dependency
	x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
	x86/mm: Factor out LDT init from context init
	x86/mm: Give each mm TLB flush generation a unique ID
	x86/speculation: Use Indirect Branch Prediction Barrier in context switch
	x86/spectre_v2: Don't check microcode versions when running under hypervisors
	x86/speculation: Use IBRS if available before calling into firmware
	x86/speculation: Move firmware_restrict_branch_speculation_*() from C to CPP
	x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
	selftest/seccomp: Fix the flag name SECCOMP_FILTER_FLAG_TSYNC
	selftest/seccomp: Fix the seccomp(2) signature
	xen: set cpu capabilities from xen_start_kernel()
	x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
	x86/nospec: Simplify alternative_msr_write()
	x86/bugs: Concentrate bug detection into a separate function
	x86/bugs: Concentrate bug reporting into a separate function
	x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
	x86/bugs, KVM: Support the combination of guest and host IBRS
	x86/cpu: Rename Merrifield2 to Moorefield
	x86/cpu/intel: Add Knights Mill to Intel family
	x86/bugs: Expose /sys/../spec_store_bypass
	x86/cpufeatures: Add X86_FEATURE_RDS
	x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
	x86/bugs/intel: Set proper CPU features and setup RDS
	x86/bugs: Whitelist allowed SPEC_CTRL MSR values
	x86/bugs/AMD: Add support to disable RDS on Fam[15, 16, 17]h if requested
	x86/speculation: Create spec-ctrl.h to avoid include hell
	prctl: Add speculation control prctls
	x86/process: Optimize TIF checks in __switch_to_xtra()
	x86/process: Correct and optimize TIF_BLOCKSTEP switch
	x86/process: Optimize TIF_NOTSC switch
	x86/process: Allow runtime control of Speculative Store Bypass
	x86/speculation: Add prctl for Speculative Store Bypass mitigation
	nospec: Allow getting/setting on non-current task
	proc: Provide details on speculation flaw mitigations
	seccomp: Enable speculation flaw mitigations
	prctl: Add force disable speculation
	seccomp: Use PR_SPEC_FORCE_DISABLE
	seccomp: Add filter flag to opt-out of SSB mitigation
	seccomp: Move speculation migitation control to arch code
	x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass
	x86/bugs: Rename _RDS to _SSBD
	proc: Use underscores for SSBD in 'status'
	Documentation/spec_ctrl: Do some minor cleanups
	x86/bugs: Fix __ssb_select_mitigation() return type
	x86/bugs: Make cpu_show_common() static
	x86/bugs: Fix the parameters alignment and missing void
	x86/cpu: Make alternative_msr_write work for 32-bit code
	x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
	x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
	x86/cpufeatures: Disentangle SSBD enumeration
	x86/cpu/AMD: Fix erratum 1076 (CPB bit)
	x86/cpufeatures: Add FEATURE_ZEN
	x86/speculation: Handle HT correctly on AMD
	x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
	x86/speculation: Add virtualized speculative store bypass disable support
	x86/speculation: Rework speculative_store_bypass_update()
	x86/bugs: Unify x86_spec_ctrl_{set_guest, restore_host}
	x86/bugs: Expose x86_spec_ctrl_base directly
	x86/bugs: Remove x86_spec_ctrl_set()
	x86/bugs: Rework spec_ctrl base and mask logic
	x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
	x86/bugs: Rename SSBD_NO to SSB_NO
	x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths
	x86/cpu: Re-apply forced caps every time CPU caps are re-read
	block: do not use interruptible wait anywhere
	clk: tegra: Fix PLL_U post divider and initial rate on Tegra30
	ubi: Introduce vol_ignored()
	ubi: Rework Fastmap attach base code
	ubi: Be more paranoid while seaching for the most recent Fastmap
	ubi: Fix races around ubi_refill_pools()
	ubi: Fix Fastmap's update_vol()
	ubi: fastmap: Erase outdated anchor PEBs during attach
	Linux 4.4.144

Change-Id: I548db9c2be75c4d70add49f6e8238534f55289a7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-07-31 20:52:09 +02:00
Vineet Gupta
cfebfe7a80 ARC: mm: allow mprotect to make stack mappings executable
commit 93312b6da4df31e4102ce5420e6217135a16c7ea upstream.

mprotect(EXEC) was failing for stack mappings as default vm flags was
missing MAYEXEC.

This was triggered by glibc test suite nptl/tst-execstack testcase

What is surprising is that despite running LTP for years on, we didn't
catch this issue as it lacks a directed test case.

gcc dejagnu tests with nested functions also requiring exec stack work
fine though because they rely on the GNU_STACK segment spit out by
compiler and handled in kernel elf loader.

This glibc case is different as the stack is non exec to begin with and
a dlopen of shared lib with GNU_STACK segment triggers the exec stack
proceedings using a mprotect(PROT_EXEC) which was broken.

CC: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-25 10:18:16 +02:00
Alexey Brodkin
b3e0971a73 ARC: Fix CONFIG_SWAP
commit 6e3761145a9ba3ce267c330b6bff51cf6a057b06 upstream.

swap was broken on ARC due to silly copy-paste issue.

We encode offset from swapcache page in __swp_entry() as (off << 13) but
were not decoding back in __swp_offset() as (off >> 13) - it was still
(off << 13).

This finally fixes swap usage on ARC.

| # mkswap /dev/sda2
|
| # swapon -a -e /dev/sda2
| Adding 500728k swap on /dev/sda2.  Priority:-2 extents:1 across:500728k
|
| # free
|              total       used       free     shared    buffers     cached
| Mem:        765104      13456     751648       4736          8       4736
| -/+ buffers/cache:       8712     756392
| Swap:       500728          0     500728

Cc: stable@vger.kernel.org
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-25 10:18:15 +02:00
Greg Kroah-Hartman
6e37ae0e7a This is the 4.4.134 stable release
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Merge 4.4.134 into android-4.4

Changes in 4.4.134
	MIPS: ptrace: Expose FIR register through FP regset
	MIPS: Fix ptrace(2) PTRACE_PEEKUSR and PTRACE_POKEUSR accesses to o32 FGRs
	KVM: Fix spelling mistake: "cop_unsuable" -> "cop_unusable"
	affs_lookup(): close a race with affs_remove_link()
	aio: fix io_destroy(2) vs. lookup_ioctx() race
	ALSA: timer: Fix pause event notification
	mmc: sdhci-iproc: fix 32bit writes for TRANSFER_MODE register
	libata: Blacklist some Sandisk SSDs for NCQ
	libata: blacklist Micron 500IT SSD with MU01 firmware
	xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent
	Revert "ipc/shm: Fix shmat mmap nil-page protection"
	ipc/shm: fix shmat() nil address after round-down when remapping
	kasan: fix memory hotplug during boot
	kernel/sys.c: fix potential Spectre v1 issue
	kernel/signal.c: avoid undefined behaviour in kill_something_info
	xfs: remove racy hasattr check from attr ops
	do d_instantiate/unlock_new_inode combinations safely
	firewire-ohci: work around oversized DMA reads on JMicron controllers
	NFSv4: always set NFS_LOCK_LOST when a lock is lost.
	ALSA: hda - Use IS_REACHABLE() for dependency on input
	ASoC: au1x: Fix timeout tests in au1xac97c_ac97_read()
	kvm: x86: fix KVM_XEN_HVM_CONFIG ioctl
	tracing/hrtimer: Fix tracing bugs by taking all clock bases and modes into account
	PCI: Add function 1 DMA alias quirk for Marvell 9128
	tools lib traceevent: Simplify pointer print logic and fix %pF
	perf callchain: Fix attr.sample_max_stack setting
	tools lib traceevent: Fix get_field_str() for dynamic strings
	dm thin: fix documentation relative to low water mark threshold
	nfs: Do not convert nfs_idmap_cache_timeout to jiffies
	watchdog: sp5100_tco: Fix watchdog disable bit
	kconfig: Don't leak main menus during parsing
	kconfig: Fix automatic menu creation mem leak
	kconfig: Fix expr_free() E_NOT leak
	mac80211_hwsim: fix possible memory leak in hwsim_new_radio_nl()
	ipmi/powernv: Fix error return code in ipmi_powernv_probe()
	Btrfs: set plug for fsync
	btrfs: Fix out of bounds access in btrfs_search_slot
	Btrfs: fix scrub to repair raid6 corruption
	scsi: fas216: fix sense buffer initialization
	HID: roccat: prevent an out of bounds read in kovaplus_profile_activated()
	jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
	powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes
	powerpc/numa: Ensure nodes initialized for hotplug
	RDMA/mlx5: Avoid memory leak in case of XRCD dealloc failure
	ntb_transport: Fix bug with max_mw_size parameter
	ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid
	ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute
	ocfs2: return error when we attempt to access a dirty bh in jbd2
	mm/mempolicy: fix the check of nodemask from user
	mm/mempolicy: add nodes_empty check in SYSC_migrate_pages
	asm-generic: provide generic_pmdp_establish()
	mm: pin address_space before dereferencing it while isolating an LRU page
	IB/ipoib: Fix for potential no-carrier state
	x86/power: Fix swsusp_arch_resume prototype
	firmware: dmi_scan: Fix handling of empty DMI strings
	ACPI: processor_perflib: Do not send _PPC change notification if not ready
	bpf: fix selftests/bpf test_kmod.sh failure when CONFIG_BPF_JIT_ALWAYS_ON=y
	MIPS: TXx9: use IS_BUILTIN() for CONFIG_LEDS_CLASS
	xen-netfront: Fix race between device setup and open
	xen/grant-table: Use put_page instead of free_page
	RDS: IB: Fix null pointer issue
	arm64: spinlock: Fix theoretical trylock() A-B-A with LSE atomics
	proc: fix /proc/*/map_files lookup
	cifs: silence compiler warnings showing up with gcc-8.0.0
	bcache: properly set task state in bch_writeback_thread()
	bcache: fix for allocator and register thread race
	bcache: fix for data collapse after re-attaching an attached device
	bcache: return attach error when no cache set exist
	tools/libbpf: handle issues with bpf ELF objects containing .eh_frames
	locking/qspinlock: Ensure node->count is updated before initialising node
	irqchip/gic-v3: Change pr_debug message to pr_devel
	scsi: ufs: Enable quirk to ignore sending WRITE_SAME command
	scsi: bnx2fc: Fix check in SCSI completion handler for timed out request
	scsi: sym53c8xx_2: iterator underflow in sym_getsync()
	scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
	scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion()
	ARC: Fix malformed ARC_EMUL_UNALIGNED default
	usb: gadget: f_uac2: fix bFirstInterface in composite gadget
	usb: gadget: fsl_udc_core: fix ep valid checks
	usb: dwc2: Fix dwc2_hsotg_core_init_disconnected()
	selftests: memfd: add config fragment for fuse
	scsi: storvsc: Increase cmd_per_lun for higher speed devices
	scsi: aacraid: fix shutdown crash when init fails
	scsi: qla4xxx: skip error recovery in case of register disconnect.
	ARM: OMAP2+: timer: fix a kmemleak caused in omap_get_timer_dt
	ARM: OMAP3: Fix prm wake interrupt for resume
	ARM: OMAP1: clock: Fix debugfs_create_*() usage
	NFC: llcp: Limit size of SDP URI
	mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
	md raid10: fix NULL deference in handle_write_completed()
	drm/exynos: fix comparison to bitshift when dealing with a mask
	usb: musb: fix enumeration after resume
	locking/xchg/alpha: Add unconditional memory barrier to cmpxchg()
	md: raid5: avoid string overflow warning
	kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE
	powerpc/bpf/jit: Fix 32-bit JIT for seccomp_data access
	s390/cio: fix return code after missing interrupt
	s390/cio: clear timer when terminating driver I/O
	ARM: OMAP: Fix dmtimer init for omap1
	smsc75xx: fix smsc75xx_set_features()
	regulatory: add NUL to request alpha2
	locking/xchg/alpha: Fix xchg() and cmpxchg() memory ordering bugs
	x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations
	media: dmxdev: fix error code for invalid ioctls
	md/raid1: fix NULL pointer dereference
	batman-adv: fix packet checksum in receive path
	batman-adv: invalidate checksum on fragment reassembly
	netfilter: ebtables: convert BUG_ONs to WARN_ONs
	nvme-pci: Fix nvme queue cleanup if IRQ setup fails
	clocksource/drivers/fsl_ftm_timer: Fix error return checking
	r8152: fix tx packets accounting
	virtio-gpu: fix ioctl and expose the fixed status to userspace.
	dmaengine: rcar-dmac: fix max_chunk_size for R-Car Gen3
	bcache: fix kcrashes with fio in RAID5 backend dev
	sit: fix IFLA_MTU ignored on NEWLINK
	gianfar: Fix Rx byte accounting for ndev stats
	net/tcp/illinois: replace broken algorithm reference link
	xen/pirq: fix error path cleanup when binding MSIs
	Btrfs: send, fix issuing write op when processing hole in no data mode
	selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable
	KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing
	watchdog: f71808e_wdt: Fix magic close handling
	e1000e: Fix check_for_link return value with autoneg off
	e1000e: allocate ring descriptors with dma_zalloc_coherent
	usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
	scsi: mpt3sas: Do not mark fw_event workqueue as WQ_MEM_RECLAIM
	scsi: sd: Keep disk read-only when re-reading partition
	fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper().
	xen: xenbus: use put_device() instead of kfree()
	USB: OHCI: Fix NULL dereference in HCDs using HCD_LOCAL_MEM
	netfilter: ebtables: fix erroneous reject of last rule
	bnxt_en: Check valid VNIC ID in bnxt_hwrm_vnic_set_tpa().
	workqueue: use put_device() instead of kfree()
	ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
	sunvnet: does not support GSO for sctp
	net: Fix vlan untag for bridge and vlan_dev with reorder_hdr off
	batman-adv: fix header size check in batadv_dbg_arp()
	vti4: Don't count header length twice on tunnel setup
	vti4: Don't override MTU passed on link creation via IFLA_MTU
	perf/cgroup: Fix child event counting bug
	RDMA/ucma: Correct option size check using optlen
	mm/mempolicy.c: avoid use uninitialized preferred_node
	selftests: ftrace: Add probe event argument syntax testcase
	selftests: ftrace: Add a testcase for string type with kprobe_event
	selftests: ftrace: Add a testcase for probepoint
	batman-adv: fix multicast-via-unicast transmission with AP isolation
	batman-adv: fix packet loss for broadcasted DHCP packets to a server
	ARM: 8748/1: mm: Define vdso_start, vdso_end as array
	net: qmi_wwan: add BroadMobi BM806U 2020:2033
	net/usb/qmi_wwan.c: Add USB id for lt4120 modem
	net-usb: add qmi_wwan if on lte modem wistron neweb d18q1
	llc: properly handle dev_queue_xmit() return value
	mm/kmemleak.c: wait for scan completion before disabling free
	net: Fix untag for vlan packets without ethernet header
	net: mvneta: fix enable of all initialized RXQs
	sh: fix debug trap failure to process signals before return to user
	x86/pgtable: Don't set huge PUD/PMD on non-leaf entries
	fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table
	swap: divide-by-zero when zero length swap file on ssd
	sr: get/drop reference to device in revalidate and check_events
	Force log to disk before reading the AGF during a fstrim
	cpufreq: CPPC: Initialize shared perf capabilities of CPUs
	scsi: aacraid: Insure command thread is not recursively stopped
	dp83640: Ensure against premature access to PHY registers after reset
	mm/ksm: fix interaction with THP
	mm: fix races between address_space dereference and free in page_evicatable
	Btrfs: bail out on error during replay_dir_deletes
	Btrfs: fix NULL pointer dereference in log_dir_items
	btrfs: Fix possible softlock on single core machines
	ocfs2/dlm: don't handle migrate lockres if already in shutdown
	sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP warning
	KVM: VMX: raise internal error for exception during invalid protected mode state
	fscache: Fix hanging wait on page discarded by writeback
	sparc64: Make atomic_xchg() an inline function rather than a macro.
	rtc: snvs: Fix usage of snvs_rtc_enable
	net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
	Bluetooth: btusb: Add USB ID 7392:a611 for Edimax EW-7611ULB
	btrfs: tests/qgroup: Fix wrong tree backref level
	Btrfs: fix copy_items() return value when logging an inode
	btrfs: fix lockdep splat in btrfs_alloc_subvolume_writers
	xen/acpi: off by one in read_acpi_id()
	ACPI: acpi_pad: Fix memory leak in power saving threads
	powerpc/mpic: Check if cpu_possible() in mpic_physmask()
	m68k: set dma and coherent masks for platform FEC ethernets
	parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
	hwmon: (nct6775) Fix writing pwmX_mode
	rtc: hctosys: Ensure system time doesn't overflow time_t
	powerpc/perf: Prevent kernel address leak to userspace via BHRB buffer
	powerpc/perf: Fix kernel address leak via sampling registers
	tools/thermal: tmon: fix for segfault
	selftests: Print the test we're running to /dev/kmsg
	net/mlx5: Protect from command bit overflow
	ath10k: Fix kernel panic while using worker (ath10k_sta_rc_update_wk)
	ima: Fix Kconfig to select TPM 2.0 CRB interface
	ima: Fallback to the builtin hash algorithm
	virtio-net: Fix operstate for virtio when no VIRTIO_NET_F_STATUS
	arm: dts: socfpga: fix GIC PPI warning
	usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fields
	cpufreq: cppc_cpufreq: Fix cppc_cpufreq_init() failure path
	clk: Don't show the incorrect clock phase
	zorro: Set up z->dev.dma_mask for the DMA API
	bcache: quit dc->writeback_thread when BCACHE_DEV_DETACHING is set
	ACPICA: Events: add a return on failure from acpi_hw_register_read
	ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
	i2c: mv64xxx: Apply errata delay only in standard mode
	KVM: lapic: stop advertising DIRECTED_EOI when in-kernel IOAPIC is in use
	xhci: zero usb device slot_id member when disabling and freeing a xhci slot
	MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset
	PCI: Restore config space on runtime resume despite being unbound
	ipmi_ssif: Fix kernel panic at msg_done_handler
	usb: dwc2: Fix interval type issue
	usb: gadget: ffs: Let setup() return USB_GADGET_DELAYED_STATUS
	usb: gadget: ffs: Execute copy_to_user() with USER_DS set
	powerpc: Add missing prototype for arch_irq_work_raise()
	ASoC: topology: create TLV data for dapm widgets
	perf/core: Fix perf_output_read_group()
	hwmon: (pmbus/max8688) Accept negative page register values
	hwmon: (pmbus/adm1275) Accept negative page register values
	cdrom: do not call check_disk_change() inside cdrom_open()
	gfs2: Fix fallocate chunk size
	usb: gadget: udc: change comparison to bitshift when dealing with a mask
	usb: gadget: composite: fix incorrect handling of OS desc requests
	x86/devicetree: Initialize device tree before using it
	x86/devicetree: Fix device IRQ settings in DT
	ALSA: vmaster: Propagate slave error
	media: cx23885: Override 888 ImpactVCBe crystal frequency
	media: cx23885: Set subdev host data to clk_freq pointer
	media: s3c-camif: fix out-of-bounds array access
	dmaengine: pl330: fix a race condition in case of threaded irqs
	media: em28xx: USB bulk packet size fix
	clk: rockchip: Prevent calculating mmc phase if clock rate is zero
	enic: enable rq before updating rq descriptors
	hwrng: stm32 - add reset during probe
	staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr
	rtc: tx4939: avoid unintended sign extension on a 24 bit shift
	serial: xuartps: Fix out-of-bounds access through DT alias
	serial: samsung: Fix out-of-bounds access through serial port index
	serial: mxs-auart: Fix out-of-bounds access through serial port index
	serial: imx: Fix out-of-bounds access through serial port index
	serial: fsl_lpuart: Fix out-of-bounds access through DT alias
	serial: arc_uart: Fix out-of-bounds access through DT alias
	PCI: Add function 1 DMA alias quirk for Marvell 88SE9220
	udf: Provide saner default for invalid uid / gid
	media: cx25821: prevent out-of-bounds read on array card
	clk: samsung: s3c2410: Fix PLL rates
	clk: samsung: exynos5260: Fix PLL rates
	clk: samsung: exynos5433: Fix PLL rates
	clk: samsung: exynos5250: Fix PLL rates
	clk: samsung: exynos3250: Fix PLL rates
	crypto: sunxi-ss - Add MODULE_ALIAS to sun4i-ss
	audit: return on memory error to avoid null pointer dereference
	MIPS: Octeon: Fix logging messages with spurious periods after newlines
	drm/rockchip: Respect page offset for PRIME mmap calls
	x86/apic: Set up through-local-APIC mode on the boot CPU if 'noapic' specified
	perf tests: Use arch__compare_symbol_names to compare symbols
	perf report: Fix memory corruption in --branch-history mode --branch-history
	selftests/net: fixes psock_fanout eBPF test case
	netlabel: If PF_INET6, check sk_buff ip header version
	scsi: lpfc: Fix issue_lip if link is disabled
	scsi: lpfc: Fix soft lockup in lpfc worker thread during LIP testing
	scsi: lpfc: Fix frequency of Release WQE CQEs
	regulator: of: Add a missing 'of_node_put()' in an error handling path of 'of_regulator_match()'
	ASoC: samsung: i2s: Ensure the RCLK rate is properly determined
	Bluetooth: btusb: Add device ID for RTL8822BE
	kdb: make "mdr" command repeat
	s390/ftrace: use expoline for indirect branches
	Linux 4.4.134

Change-Id: Iababaf9b89bc8d0437b95e1368d8b0a9126a178c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-05-30 13:25:24 +02:00
Ulf Magnusson
e0a6f895ad ARC: Fix malformed ARC_EMUL_UNALIGNED default
[ Upstream commit 827cc2fa024dd6517d62de7a44c7b42f32af371b ]

'default N' should be 'default n', though they happen to have the same
effect here, due to undefined symbols (N in this case) evaluating to n
in a tristate sense.

Remove the default from ARC_EMUL_UNALIGNED instead of changing it. bool
and tristate symbols implicitly default to n.

Discovered with the
https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_ulfalizer_Kconfiglib_blob_master_examples_list-5Fundefined.py&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=c14YS-cH-kdhTOW89KozFhBtBJgs1zXscZojEZQ0THs&m=WxxD8ozR7QQUVzNCBksiznaisBGO_crN7PBOvAoju8s&s=1LmxsNqxwT-7wcInVpZ6Z1J27duZKSoyKxHIJclXU_M&e=
script.

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:48:58 +02:00
Greg Kroah-Hartman
3f51ea2db9 This is the 4.4.133 stable release
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Merge 4.4.133 into android-4.4

Changes in 4.4.133
	8139too: Use disable_irq_nosync() in rtl8139_poll_controller()
	bridge: check iface upper dev when setting master via ioctl
	dccp: fix tasklet usage
	ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
	llc: better deal with too small mtu
	net: ethernet: sun: niu set correct packet size in skb
	net/mlx4_en: Verify coalescing parameters are in range
	net_sched: fq: take care of throttled flows before reuse
	net: support compat 64-bit time in {s,g}etsockopt
	openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found
	qmi_wwan: do not steal interfaces from class drivers
	r8169: fix powering up RTL8168h
	sctp: handle two v4 addrs comparison in sctp_inet6_cmp_addr
	sctp: use the old asoc when making the cookie-ack chunk in dupcook_d
	tg3: Fix vunmap() BUG_ON() triggered from tg3_free_consistent().
	bonding: do not allow rlb updates to invalid mac
	tcp: ignore Fast Open on repair mode
	sctp: fix the issue that the cookie-ack with auth can't get processed
	sctp: delay the authentication for the duplicated cookie-echo chunk
	ALSA: timer: Call notifier in the same spinlock
	audit: move calcs after alloc and check when logging set loginuid
	arm64: introduce mov_q macro to move a constant into a 64-bit register
	arm64: Add work around for Arm Cortex-A55 Erratum 1024718
	futex: Remove unnecessary warning from get_futex_key
	futex: Remove duplicated code and fix undefined behaviour
	xfrm: fix xfrm_do_migrate() with AEAD e.g(AES-GCM)
	lockd: lost rollback of set_grace_period() in lockd_down_net()
	Revert "ARM: dts: imx6qdl-wandboard: Fix audio channel swap"
	l2tp: revert "l2tp: fix missing print session offset info"
	pipe: cap initial pipe capacity according to pipe-max-size limit
	futex: futex_wake_op, fix sign_extend32 sign bits
	kernel/exit.c: avoid undefined behaviour when calling wait4()
	usbip: usbip_host: refine probe and disconnect debug msgs to be useful
	usbip: usbip_host: delete device from busid_table after rebind
	usbip: usbip_host: run rebind from exit when module is removed
	usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
	usbip: usbip_host: fix bad unlock balance during stub_probe()
	ALSA: usb: mixer: volume quirk for CM102-A+/102S+
	ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
	ALSA: control: fix a redundant-copy issue
	spi: pxa2xx: Allow 64-bit DMA
	powerpc/powernv: panic() on OPAL < V3
	powerpc/powernv: Remove OPALv2 firmware define and references
	powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL
	cpuidle: coupled: remove unused define cpuidle_coupled_lock
	powerpc: Don't preempt_disable() in show_cpuinfo()
	vmscan: do not force-scan file lru if its absolute size is small
	proc: meminfo: estimate available memory more conservatively
	mm: filemap: remove redundant code in do_read_cache_page
	mm: filemap: avoid unnecessary calls to lock_page when waiting for IO to complete during a read
	signals: avoid unnecessary taking of sighand->siglock
	cpufreq: intel_pstate: Enable HWP by default
	tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
	proc read mm's {arg,env}_{start,end} with mmap semaphore taken.
	procfs: fix pthread cross-thread naming if !PR_DUMPABLE
	powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
	mm: don't allow deferred pages with NEED_PER_CPU_KM
	s390/qdio: fix access to uninitialized qdio_q fields
	s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
	s390/qdio: don't release memory in qdio_setup_irq()
	s390: remove indirect branch from do_softirq_own_stack
	efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
	ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
	tick/broadcast: Use for_each_cpu() specially on UP kernels
	ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
	ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
	ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
	Btrfs: fix xattr loss after power failure
	btrfs: fix crash when trying to resume balance without the resume flag
	btrfs: fix reading stale metadata blocks after degraded raid1 mounts
	net: test tailroom before appending to linear skb
	packet: in packet_snd start writing at link layer allocation
	sock_diag: fix use-after-free read in __sk_free
	tcp: purge write queue in tcp_connect_init()
	ext2: fix a block leak
	s390: add assembler macros for CPU alternatives
	s390: move expoline assembler macros to a header
	s390/lib: use expoline for indirect branches
	s390/kernel: use expoline for indirect branches
	s390: move spectre sysfs attribute code
	s390: extend expoline to BC instructions
	s390: use expoline thunks in the BPF JIT
	scsi: libsas: defer ata device eh commands to libata
	scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()
	scsi: zfcp: fix infinite iteration on ERP ready list
	dmaengine: ensure dmaengine helpers check valid callback
	time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
	gpio: rcar: Add Runtime PM handling for interrupts
	cfg80211: limit wiphy names to 128 bytes
	hfsplus: stop workqueue when fill_super() failed
	x86/kexec: Avoid double free_page() upon do_kexec_load() failure
	Linux 4.4.133

Change-Id: I0554b12889bc91add2a444da95f18d59c6fb9cdb
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-05-26 10:12:26 +02:00
Jiri Slaby
177a981885 futex: Remove duplicated code and fix undefined behaviour
commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.

There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.

Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.

This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.

And as suggested by Thomas, check for negative oparg too, because it was
also reported to cause undefined behaviour report.

Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Will Deacon <will.deacon@arm.com> [core/arm64]
Cc: linux-mips@linux-mips.org
Cc: Rich Felker <dalias@libc.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: peterz@infradead.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: sparclinux@vger.kernel.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux-s390@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: linux-hexagon@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-xtensa@linux-xtensa.org
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: openrisc@lists.librecores.org
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Stafford Horne <shorne@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Henderson <rth@twiddle.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-parisc@vger.kernel.org
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: linux-alpha@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "David S. Miller" <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20170824073105.3901-1-jslaby@suse.cz
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-26 08:48:50 +02:00
Jiri Slaby
3ebefa7840 BACKPORT: exit_thread: remove empty bodies
Define HAVE_EXIT_THREAD for archs which want to do something in
exit_thread. For others, let's define exit_thread as an empty inline.

This is a cleanup before we change the prototype of exit_thread to
accept a task parameter.

[akpm@linux-foundation.org: fix mips]
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5f56a5dfdb9bcb3bca03df59980d4d2f012cbb53)

Conflicts:
	arch/powerpc/kernel/process.c
	arch/xtensa/Kconfig
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-02-05 08:58:29 -08:00
Vineet Gupta
30ce9c8dbc ARC: uaccess: dont use "l" gcc inline asm constraint modifier
commit 79435ac78d160e4c245544d457850a56f805ac0d upstream.

This used to setup the LP_COUNT register automatically, but now has been
removed.

There was an earlier fix 3c7c7a2fc8811 which fixed instance in delay.h but
somehow missed this one as gcc change had not made its way into
production toolchains and was not pedantic as it is now !

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-10 09:27:11 +01:00
Jose Abreu
81306fc3db ARC: Re-enable MMU upon Machine Check exception
commit 1ee55a8f7f6b7ca4c0c59e0b4b4e3584a085c2d3 upstream.

I recently came upon a scenario where I would get a double fault
machine check exception tiriggered by a kernel module.
However the ensuing crash stacktrace (ksym lookup) was not working
correctly.

Turns out that machine check auto-disables MMU while modules are allocated
in kernel vaddr spapce.

This patch re-enables the MMU before start printing the stacktrace
making stacktracing of modules work upon a fatal exception.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: moved code into low level handler to avoid in 2 places]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-27 11:00:16 +02:00
Alexey Brodkin
10814c149e ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
commit 7d79cee2c6540ea64dd917a14e2fd63d4ac3d3c0 upstream.

It is necessary to explicitly set both SLC_AUX_RGN_START1 and SLC_AUX_RGN_END1
which hold MSB bits of the physical address correspondingly of region start
and end otherwise SLC region operation is executed in unpredictable manner

Without this patch, SLC flushes on HSDK (IOC disabled) were taking
seconds.

Reported-by: Vladimir Kondratiev <vladimir.kondratiev@intel.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: PAR40 regs only written if PAE40 exist]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-30 10:19:22 +02:00
Hugh Dickins
4b35943067 mm: larger stack guard gap, between vmas
commit 1be7107fbe18eed3e319a6c3e83c78254b693acb upstream.

Stack guard page is a useful feature to reduce a risk of stack smashing
into a different mapping. We have been using a single page gap which
is sufficient to prevent having stack adjacent to a different mapping.
But this seems to be insufficient in the light of the stack usage in
userspace. E.g. glibc uses as large as 64kB alloca() in many commonly
used functions. Others use constructs liks gid_t buffer[NGROUPS_MAX]
which is 256kB or stack strings with MAX_ARG_STRLEN.

This will become especially dangerous for suid binaries and the default
no limit for the stack size limit because those applications can be
tricked to consume a large portion of the stack and a single glibc call
could jump over the guard page. These attacks are not theoretical,
unfortunatelly.

Make those attacks less probable by increasing the stack guard gap
to 1MB (on systems with 4k pages; but make it depend on the page size
because systems with larger base pages might cap stack allocations in
the PAGE_SIZE units) which should cover larger alloca() and VLA stack
allocations. It is obviously not a full fix because the problem is
somehow inherent, but it should reduce attack space a lot.

One could argue that the gap size should be configurable from userspace,
but that can be done later when somebody finds that the new 1MB is wrong
for some special case applications.  For now, add a kernel command line
option (stack_guard_gap) to specify the stack gap size (in page units).

Implementation wise, first delete all the old code for stack guard page:
because although we could get away with accounting one extra page in a
stack vma, accounting a larger gap can break userspace - case in point,
a program run with "ulimit -S -v 20000" failed when the 1MB gap was
counted for RLIMIT_AS; similar problems could come with RLIMIT_MLOCK
and strict non-overcommit mode.

Instead of keeping gap inside the stack vma, maintain the stack guard
gap as a gap between vmas: using vm_start_gap() in place of vm_start
(or vm_end_gap() in place of vm_end if VM_GROWSUP) in just those few
places which need to respect the gap - mainly arch_get_unmapped_area(),
and and the vma tree's subtree_gap support for that.

Original-patch-by: Oleg Nesterov <oleg@redhat.com>
Original-patch-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[wt: backport to 4.11: adjust context]
[wt: backport to 4.9: adjust context ; kernel doc was not in admin-guide]
[wt: backport to 4.4: adjust context ; drop ppc hugetlb_radix changes]
Signed-off-by: Willy Tarreau <w@1wt.eu>
[gkh: minor build fixes for 4.4]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-26 07:13:11 +02:00
Vineet Gupta
1aefe328a6 ARCv2: save r30 on kernel entry as gcc uses it for code-gen
commit ecd43afdbe72017aefe48080631eb625e177ef4d upstream.

This is not exposed to userspace debugers yet, which can be done
independently as a seperate patch !

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-02 21:19:56 -07:00
Vineet Gupta
e871ea6bcf ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup
commit a524c218bc94c705886a0e0fedeee45d1931da32 upstream.

Reported-by: Jo-Philipp Wich <jo@mein.io>
Fixes: 9aed02feae57bf7 ("ARC: [arcompact] handle unaligned access delay slot")
Cc: linux-kernel@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-14 15:22:50 -08:00
Vineet Gupta
acb63c8b57 ARC: [arcompact] handle unaligned access delay slot corner case
commit 9aed02feae57bf7a40cb04ea0e3017cb7a998db4 upstream.

After emulating an unaligned access in delay slot of a branch, we
pretend as the delay slot never happened - so return back to actual
branch target (or next PC if branch was not taken).

Curently we did this by handling STATUS32.DE, we also need to clear the
BTA.T bit, which is disregarded when returning from original misaligned
exception, but could cause weirdness if it took the interrupt return
path (in case interrupt was acive too)

One ARC700 customer ran into this when enabling unaligned access fixup
for kernel mode accesses as well

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-01 08:30:53 +01:00
Vineet Gupta
42ad766367 ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list
commit 36425cd67052e3becf325fd4d3ba5691791ef7e4 upstream.

commit 3c7c7a2fc8811bc ("ARC: Don't use "+l" inline asm constraint")
modified the inline assembly to setup LP_COUNT register manually and NOT
rely on gcc to do it (with the +l inline assembler contraint hint, now
being retired in the compiler)

However the fix was flawed as we didn't add LP_COUNT to asm clobber list,
meaning gcc doesn't know that LP_COUNT or zero-delay-loops are in action
in the inline asm.

This resulted in some fun - as nested ZOL loops were being generared

| mov lp_count,250000 ;16 # tmp235,
| lp .L__GCC__LP14 #		<======= OUTER LOOP (gcc generated)
|   .L14:
|   ld r2, [r5] # MEM[(volatile u32 *)prephitmp_43], w
|   dmb 1
|   breq r2, -1, @.L21 #, w,,
|   bbit0 r2,1,@.L13 # w,,
|   ld r4,[r7] ;25 # loops_per_jiffy, loops_per_jiffy
|   mpymu r3,r4,r6 #, loops_per_jiffy, tmp234
|
|   mov lp_count, r3 #		 <====== INNER LOOP (from inline asm)
|   lp 1f
| 	 nop
|   1:
|   nop_s
| .L__GCC__LP14: ; loop end, start is @.L14 #,

This caused issues with drivers relying on sane behaviour of udelay
friends.

With LP_COUNT added to clobber list, gcc doesn't generate the outer
loop in say above case.

Addresses STAR 9001146134

Reported-by: Joao Pinto <jpinto@synopsys.com>
Fixes: 3c7c7a2fc8811bc ("ARC: Don't use "+l" inline asm constraint")
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-01 08:30:53 +01:00
Vineet Gupta
429a533a3d ARC: mm: arc700: Don't assume 2 colours for aliasing VIPT dcache
commit 08fe007968b2b45e831daf74899f79a54d73f773 upstream.

An ARC700 customer reported linux boot crashes when upgrading to bigger
L1 dcache (64K from 32K). Turns out they had an aliasing VIPT config and
current code only assumed 2 colours, while theirs had 4. So default to 4
colours and complain if there are fewer. Ideally this needs to be a
Kconfig option, but heck that's too much of hassle for a single user.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-09 08:07:48 +01:00
Vineet Gupta
5b2ed6e538 ARC: Don't use "+l" inline asm constraint
commit 3c7c7a2fc8811bc7097479f69acf2527693d7562 upstream.

Apparenty this is coming in the way of gcc fix which inhibits the usage
of LP_COUNT as a gpr.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-12-08 07:15:24 +01:00
Vineet Gupta
c45bfaa921 ARC: timer: rtc: implement read loop in "C" vs. inline asm
commit 922cc171998ac3dbe74d57011ef7ed57e9b0d7df upstream.

The current code doesn't even compile as somehow the inline assembly
can't see the register names defined as ARC_RTC_*
I'm pretty sure It worked when I first got it merged, but the tools were
definitely different then.

So better to write this in "C" anyways.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-18 10:48:34 +01:00
Al Viro
8cffabab01 arc: don't leak bits of kernel stack into coredump
commit 7798bf2140ebcc36eafec6a4194fffd8d585d471 upstream.

On faulting sigreturn we do get SIGSEGV, all right, but anything
we'd put into pt_regs could end up in the coredump.  And since
__copy_from_user() never zeroed on arc, we'd better bugger off
on its failure without copying random uninitialized bits of
kernel stack into pt_regs...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-28 03:01:32 -04:00