When loading the ipv6 module, ndisc_init() is called before
ip6_route_init(). As the former registers a handler calling
fib6_run_gc(), this opens a window to run the garbage collector
before necessary data structures are initialized. If a network
device is initialized in this window, adding MAC address to it
triggers a NETDEV_CHANGEADDR event, leading to a crash in
fib6_clean_all().
Take the event handler registration out of ndisc_init() into a
separate function ndisc_late_init() and move it after
ip6_route_init().
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "id" variable was being incremented in common code, but only
initialized and used in IPv4 code. We move the increment to the IPv4
code too, and then legitimately use the uninitialized_var() macro to
avoid the gcc 4.6 warning that 'id' may be used uninitialized.
Note that gcc 4.7 does not warn.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This change just removes two tabs from the source file.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 416186fbf8 ("net: Split core bits of netdev_pick_tx
into __netdev_pick_tx") added a bug that disables caching of queue
index in the socket.
This is the source of packet reorders for TCP flows, and
again this is happening more often when using FQ pacing.
Old code was doing
if (queue_index != old_index)
sk_tx_queue_set(sk, queue_index);
Alexander renamed the variables but forgot to change sk_tx_queue_set()
2nd parameter.
if (queue_index != new_index)
sk_tx_queue_set(sk, queue_index);
This means we store -1 over and over in sk->sk_tx_queue_mapping
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This was originally reported in [1] and posted by Neil Horman [2], he said:
Fix up a missed null pointer check in the asconf code. If we don't find
a local address, but we pass in an address length of more than 1, we may
dereference a NULL laddr pointer. Currently this can't happen, as the only
users of the function pass in the value 1 as the addrcnt parameter, but
its not hot path, and it doesn't hurt to check for NULL should that ever
be the case.
The callpath from sctp_asconf_mgmt() looks okay. But this could be triggered
from sctp_setsockopt_bindx() call with SCTP_BINDX_REM_ADDR and addrcnt > 1
while passing all possible addresses from the bind list to SCTP_BINDX_REM_ADDR
so that we do *not* find a single address in the association's bind address
list that is not in the packed array of addresses. If this happens when we
have an established association with ASCONF-capable peers, then we could get
a NULL pointer dereference as we only check for laddr == NULL && addrcnt == 1
and call later sctp_make_asconf_update_ip() with NULL laddr.
BUT: this actually won't happen as sctp_bindx_rem() will catch such a case
and return with an error earlier. As this is incredably unintuitive and error
prone, add a check to catch at least future bugs here. As Neil says, its not
hot path. Introduced by 8a07eb0a5 ("sctp: Add ASCONF operation on the
single-homed host").
[1] http://www.spinics.net/lists/linux-sctp/msg02132.html
[2] http://www.spinics.net/lists/linux-sctp/msg02133.html
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Michio Honda <micchie@sfc.wide.ad.jp>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we do not add braces around ...
mask |= POLLERR |
sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0;
... then this condition always evaluates to true as POLLERR is
defined as 8 and binary or'd with whatever result comes out of
sock_flag(). Hence instead of (X | Y) ? A : B, transform it into
X | (Y ? A : B). Unfortunatelty, commit 8facd5fb73 ("net: fix
smatch warnings inside datagram_poll") forgot about SCTP. :-(
Introduced by 7d4c04fc17 ("net: add option to enable error queue
packets waking select").
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the kernel is compiled with CONFIG_IPV6_SUBTREES, and we return
with an error in fn = fib6_add_1(), then error codes are encoded into
the return pointer e.g. ERR_PTR(-ENOENT). In such an error case, we
write the error code into err and jump to out, hence enter the if(err)
condition. Now, if CONFIG_IPV6_SUBTREES is enabled, we check for:
if (pn != fn && pn->leaf == rt)
...
if (pn != fn && !pn->leaf && !(pn->fn_flags & RTN_RTINFO))
...
Since pn is NULL and fn is f.e. ERR_PTR(-ENOENT), then pn != fn
evaluates to true and causes a NULL-pointer dereference on further
checks on pn. Fix it, by setting both NULL in error case, so that
pn != fn already evaluates to false and no further dereference
takes place.
This was first correctly implemented in 4a287eba2 ("IPv6 routing,
NLM_F_* flag support: REPLACE and EXCL flags support, warn about
missing CREATE flag"), but the bug got later on introduced by
188c517a0 ("ipv6: return errno pointers consistently for fib6_add_1()").
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Lin Ming <mlin@ss.pku.edu.cn>
Cc: Matti Vaittinen <matti.vaittinen@nsn.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Matti Vaittinen <matti.vaittinen@nsn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In function __parse_flow_nlattrs(), we check for condition
(type > OVS_KEY_ATTR_MAX) and if true, print an error, but we do
not return from this function as in other checks. It seems this
has been forgotten, as otherwise, we could access beyond the
memory of ovs_key_lens, which is of ovs_key_lens[OVS_KEY_ATTR_MAX + 1].
Hence, a maliciously prepared nla_type from user space could access
beyond this upper limit.
Introduced by 03f0d916a ("openvswitch: Mega flow implementation").
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Andy Zhou <azhou@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/broadcom/bcm63xx_enet.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/korina.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently macvlan calls skb_clone in macvlan_broadcast but checks
for a NULL return in macvlan_broadcast_one instead. This is
needlessly confusing and may lead to bugs introduced later.
This patch moves the error check to where the skb_clone call is.
The only other caller of macvlan_broadcast_one never passes in a
NULL value so it doesn't need the check either.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Thanks,
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c: In function 'qlcnic_handle_fw_message':
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c:922:4: warning: overflow in implicit constant conversion [-Woverflow]
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nikolay Aleksandrov says:
====================
bonding: fix arp_validate desync state & race
These two patches aim to fix the possible de-sync state which the bond
can enter if we have arp_validate without arp_interval or the other way
around. They also fix a race condition between arp_validate setting and
mode changing.
Patch 01 - fixes the race condition between store_arp_validate and bond
mode change by using rtnl for sync
Patch 02 - fixes the possible de-sync state by setting/unsetting recv_probe
if arp_interval is set/unset and also if arp_validate is set/unset
v2: Fix the mode check in store_arp_validate
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We make bond_arp_rcv global so it can be used in bond_sysfs if the bond
interface is up and arp_interval is being changed to a positive value
and cleared otherwise as per Jay's suggestion.
This also fixes a problem where bond_arp_rcv was set even though
arp_validate was disabled while the bond was up by unsetting recv_probe
in bond_store_arp_validate and respectively setting it if enabled.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to protect store_arp_validate via rtnl because it can race with
mode changing and we can end up having arp_validate set in a mode
different from active-backup.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In rfc4942 and rfc2460 I cannot find anything which would implicate to
drop packets which have only padding in tlv.
Current behaviour breaks TAHI Test v6LC.1.2.6.
Problem was intruduced in:
9b905fe684 "ipv6/exthdrs: strict Pad1 and PadN check"
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
During initialization bnx2x allocates significant amounts of memory
(for rx data, rx SGEs, TPA pool) using atomic allocations.
I received a report where bnx2x failed to allocate SGEs and it had
to fall back to TPA-less operation.
Let's use GFP_KERNEL allocations during initialization, which runs
in process context. Add gfp_t parameters to functions that are used
both in initialization and in the receive path.
Use an unlikely branch in bnx2x_frag_alloc() to avoid atomic allocation
by netdev_alloc_frag(). The branch is taken several thousands of times
during initialization, but then never more. Note that fp->rx_frag_size
is never greater than PAGE_SIZE, so __get_free_page() can be used here.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The first fixes namespace issues which causes a kernel
NULL pointer dereference, the second fixes uevent
handling to work better with udev, and the third
switches some code to use srlcpy instead of strncpy
in order to be safer.
All changes have been baking in for-next for at least
2 weeks.
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Merge tag 'for-linus-3.12-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
Pull 9p updates from Eric Van Hensbergen:
"Minor 9p fixes and tweaks for 3.12 merge window
The first fixes namespace issues which causes a kernel NULL pointer
dereference, the second fixes uevent handling to work better with
udev, and the third switches some code to use srlcpy instead of
strncpy in order to be safer.
All changes have been baking in for-next for at least 2 weeks"
* tag 'for-linus-3.12-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
fs/9p: avoid accessing utsname after namespace has been torn down
9p: send uevent after adding/removing mount_tag attribute
fs: 9p: use strlcpy instead of strncpy
and some fixes. Apart from that there's a minor loop optimisation.
These sanity checks mainly exist to trap maliciously corrupted
filesystems either through using a deliberately modified mksquashfs,
or where the user has deliberately chosen to generate uncompressed
metadata and then corrupted it.
Normally metadata in Squashfs filesystems is compressed, which means
corruption (either accidental or malicious) is detected when
trying to decompress the metadata. So corrupted data does not normally
get as far as the code paths in question here.
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Merge tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next
Pull squashfs updates from Phillip Lougher:
"A couple of minor additional sanity check patches for corrupted
information, and some fixes. Apart from that there's a minor loop
optimisation.
These sanity checks mainly exist to trap maliciously corrupted
filesystems either through using a deliberately modified mksquashfs,
or where the user has deliberately chosen to generate uncompressed
metadata and then corrupted it.
Normally metadata in Squashfs filesystems is compressed, which means
corruption (either accidental or malicious) is detected when trying to
decompress the metadata. So corrupted data does not normally get as
far as the code paths in question here"
* tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next:
Squashfs: add corruption check for type in squashfs_readdir()
Squashfs: add corruption check in get_dir_index_using_offset()
Squashfs: fix corruption checks in squashfs_readdir()
Squashfs: fix corruption checks in squashfs_lookup()
Squashfs: fix corruption check in get_dir_index_using_name()
Squashfs: Optimized uncompressed buffer loop
Squashfs: sanity check information from disk
Pull more s390 updates from Heiko Carstens:
"This includes one bpf/jit bug fix where the jit compiler could
sometimes write generated code out of bounds of the allocated memory
area.
The rest of the patches are only cleanups and minor improvements"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/irq: reduce size of external interrupt handler hash array
s390/compat,uid16: use current_cred()
s390/ap_bus: use and-mask instead of a cast
s390/ftrace: avoid pointer arithmetics with function pointers
s390: make various functions static, add declarations to header files
s390/compat signal: add couple of __force annotations
s390/mm: add __releases()/__acquires() annotations to gmap_alloc_table()
s390: keep Kconfig sorted
s390/irq: rework irq subclass handling
s390/irq: use hlists for external interrupt handler array
s390/dumpstack: convert print_symbol to %pSR
s390/perf: Remove print_hex_dump_bytes() debug output
s390: update defconfig
s390/bpf,jit: fix address randomization
Pull kconfig updates from Michal Marek:
"This is the kconfig part of kbuild for v3.12-rc1:
- post-3.11 search code fixes and micro-optimizations
- CONFIG_MODULES is no longer a special case; this is needed to
eventually fix the bug that using KCONFIG_ALLCONFIG breaks
allmodconfig
- long long is used to store hex and int values
- make silentoldconfig no longer warns when a symbol changes from
tristate to bool (it's a job for make oldconfig)
- scripts/diffconfig updated to work with newer Pythons
- scripts/config does not rely on GNU sed extensions"
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: do not allow more than one symbol to have 'option modules'
kconfig: regenerate bison parser
kconfig: do not special-case 'MODULES' symbol
diffconfig: Update script to support python versions 2.5 through 3.3
diffconfig: Gracefully exit if the default config files are not present
modules: do not depend on kconfig to set 'modules' option to symbol MODULES
kconfig: silence warning when parsing auto.conf when a symbol has changed type
scripts/config: use sed's POSIX interface
kconfig: switch to "long long" for sanity
kconfig: simplify symbol-search code
kconfig: don't allocate n+1 elements in temporary array
kconfig: minor style fixes in symbol-search code
kconfig/[mn]conf: shorten title in search-box
kconfig: avoid multiple calls to strlen
Documentation/kconfig: more concise and straightforward search explanation
This patch adds the changes for Kconfig, i40e.txt, MAINTAINERS, Kbuild
and new i40e/Makefile to build i40e with the kernel.
New driver build option is CONFIG_I40E
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This driver includes a debugfs interface for developers to get more hardware
information in real-time.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
While not part of this patch series, an i40evf driver is on its
way, and uses these files to communicate to the PF driver.
This patch contains the header and implementation files for the
PF to VF interface.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch contains the main driver header files, containing
structures and data types specific to the linux driver.
i40e_osdep.h contains some code that helps us adapt our OS agnostic code to
Linux.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch contains the ethtool interface and implementation.
The goal in this patch series is minimal functionality while not
including much in the way of "set support."
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch contains the transmit, receive, and NAPI routines, as well
as ancillary routines.
This file is code that is (will be) used by both the VF and PF
drivers.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This is the driver for the Intel(R) Ethernet Controller XL710 Family.
This driver is targeted at basic ethernet functionality only, and will be
improved upon further as time goes on.
This patch contains the driver entry points but does not include transmit
and receive (see the next patch in the series) routines.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
CC: e1000-devel@lists.sourceforge.net
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
- APM X-Gene system reboot driver by Feng Kan and Loc Ho (APM).
- Qualcomm MSM reboot/poweroff driver by Abhimanyu Kapur (Codeaurora).
- Texas Instruments BQ24190 charger driver by Mark A. Greer (Animal Creek
Technologies).
- Texas Instruments TWL4030 MADC battery driver by Lukas Märdian and Marek
Belisko (Golden Delicious Computers). The driver is used on Freerunner
GTA04 phones.
Highlighted fixes and improvements:
- Suspend/wakeup logic improvements: power supply objects will block
system suspend until all power supply events are processed. Thanks to
Zoran Markovic (Linaro), Arve Hjonnevag and Todd Poynor (Google).
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Merge tag 'for-v3.12' of git://git.infradead.org/battery-2.6
Pull battery/power supply driver updates from Anton Vorontsov:
"New drivers:
- APM X-Gene system reboot driver by Feng Kan and Loc Ho (APM).
- Qualcomm MSM reboot/poweroff driver by Abhimanyu Kapur (Codeaurora).
- Texas Instruments BQ24190 charger driver by Mark A. Greer (Animal
Creek Technologies).
- Texas Instruments TWL4030 MADC battery driver by Lukas Märdian and
Marek Belisko (Golden Delicious Computers). The driver is used on
Freerunner GTA04 phones.
Highlighted fixes and improvements:
- Suspend/wakeup logic improvements: power supply objects will block
system suspend until all power supply events are processed. Thanks
to Zoran Markovic (Linaro), Arve Hjonnevag and Todd Poynor (Google)"
* tag 'for-v3.12' of git://git.infradead.org/battery-2.6:
rx51_battery: Fix channel number when reading adc value
power: Add twl4030_madc battery driver.
bq24190_charger: Workaround SS definition problem on i386 builds
power_supply: Prevent suspend until power supply events are processed
vexpress-poweroff: Should depend on the required infrastructure
twl4030-charger: Fix compiler warning with regulator_enable()
rx51_battery: Replace hardcoded channels values.
bq24190_charger: Add support for TI BQ24190 Battery Charger
ab8500-charger: We print an unintended error message
max8925_power: Fix missing of_node_put
power_supply: Replace strict_strtol() with kstrtol()
power: Add APM X-Gene system reboot driver
power_supply: tosa_battery: Get rid of irq_to_gpio usage
power supply: collie_battery: Convert to use dev_pm_ops
power_supply: Make goldfish_battery depend on GOLDFISH || COMPILE_TEST
power: reset: Add msm restart support
MAINTAINERS: drivers/power: add entry for SmartReflex AVS drivers
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a handful of small powerpc fixes.
A couple of section mismatches (always worth fixing), a missing export
of a new symbol causing build failures of modules, a page fault
deadlock fix (interestingly that bug has been around for a LONG time,
though it seems to be more easily triggered by KVM) and fixing pseries
default idle loop in the absence of the cpuidle drivers (such as
during boot)"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Default arch idle could cede processor on pseries
fbdev/ps3fb: Fix section mismatch warning for ps3fb_probe
powerpc: Fix section mismatch warning for prom_rtas_call
powerpc: Fix possible deadlock on page fault
powerpc: Export cpu_to_chip_id() to fix build error
- Boot on ARM without using Xen unconditionally
- On Xen ARM don't run cpuidle/cpufreq
- Fix regression in balloon driver, preempt count warnings
- Fixes to make PVHVM able to use pv ticketlock.
- Revert Xen PVHVM disabling pv ticketlock (aka, re-enable pv ticketlocks)
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Merge tag 'stable/for-linus-3.12-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
"This pull I usually do after rc1 is out but because we have a nice
amount of fixes, some bootup related fixes for ARM, and it is early in
the cycle we figured to do it now to help with tracking of potential
regressions.
The simple ones are the ARM ones - one of the patches fell through the
cracks, other fixes a bootup issue (unconditionally using Xen
functions). Then a fix for a regression causing preempt count being
off (patch causing this went in v3.12).
Lastly are the fixes to make Xen PVHVM guests use PV ticketlocks (Xen
PV already does).
The enablement of that was supposed to be part of the x86 spinlock
merge in commit 816434ec4a ("The biggest change here are
paravirtualized ticket spinlocks (PV spinlocks), which bring a nice
speedup on various benchmarks...") but unfortunatly it would cause
hang when booting Xen PVHVM guests. Yours truly got all of the bugs
fixed last week and they (six of them) are included in this pull.
Bug-fixes:
- Boot on ARM without using Xen unconditionally
- On Xen ARM don't run cpuidle/cpufreq
- Fix regression in balloon driver, preempt count warnings
- Fixes to make PVHVM able to use pv ticketlock.
- Revert Xen PVHVM disabling pv ticketlock (aka, re-enable pv ticketlocks)"
* tag 'stable/for-linus-3.12-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/spinlock: Don't use __initdate for xen_pv_spin
Revert "xen/spinlock: Disable IRQ spinlock (PV) allocation on PVHVM"
xen/spinlock: Don't setup xen spinlock IPI kicker if disabled.
xen/smp: Update pv_lock_ops functions before alternative code starts under PVHVM
xen/spinlock: We don't need the old structure anymore
xen/spinlock: Fix locking path engaging too soon under PVHVM.
xen/arm: disable cpuidle and cpufreq when linux is running as dom0
xen/p2m: Don't call get_balloon_scratch_page() twice, keep interrupts disabled for multicalls
ARM: xen: only set pm function ptrs for Xen guests
Pull drm fixes from Dave Airlie:
"Daniel had some fixes queued up, that were delayed, the stolen memory
ones and vga arbiter ones are quite useful, along with his usual bunch
of stuff, nothing for HSW outputs yet.
The one nouveau fix is for a regression I caused with the poweroff stuff"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (30 commits)
drm/nouveau: fix oops on runtime suspend/resume
drm/i915: Delay disabling of VGA memory until vgacon->fbcon handoff is done
drm/i915: try not to lose backlight CBLV precision
drm/i915: Confine page flips to BCS on Valleyview
drm/i915: Skip stolen region initialisation if none is reserved
drm/i915: fix gpu hang vs. flip stall deadlocks
drm/i915: Hold an object reference whilst we shrink it
drm/i915: fix i9xx_crtc_clock_get for multiplied pixels
drm/i915: handle sdvo input pixel multiplier correctly again
drm/i915: fix hpd work vs. flush_work in the pageflip code deadlock
drm/i915: fix up the relocate_entry refactoring
drm/i915: Fix pipe config warnings when dealing with LVDS fixed mode
drm/i915: Don't call sg_free_table() if sg_alloc_table() fails
i915: Update VGA arbiter support for newer devices
vgaarb: Fix VGA decodes changes
vgaarb: Don't disable resources that are not owned
drm/i915: Pin pages whilst mapping the dma-buf
drm/i915: enable trickle feed on Haswell
x86: add early quirk for reserving Intel graphics stolen memory v5
drm/i915: split PCI IDs out into i915_drm.h v4
...
Pull nfsd updates from Bruce Fields:
"This was a very quiet cycle! Just a few bugfixes and some cleanup"
* 'nfsd-next' of git://linux-nfs.org/~bfields/linux:
rpc: let xdr layer allocate gssproxy receieve pages
rpc: fix huge kmalloc's in gss-proxy
rpc: comment on linux_cred encoding, treat all as unsigned
rpc: clean up decoding of gssproxy linux creds
svcrpc: remove unused rq_resused
nfsd4: nfsd4_create_clid_dir prints uninitialized data
nfsd4: fix leak of inode reference on delegation failure
Revert "nfsd: nfs4_file_get_access: need to be more careful with O_RDWR"
sunrpc: prepare NFS for 2038
nfsd4: fix setlease error return
nfsd: nfs4_file_get_access: need to be more careful with O_RDWR
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon cleanups from Guenter Roeck:
"Minor cleanup in ina2xx and hwmon-vid drivers; no functional changes"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ina2xx) Remove casting the return value which is a void pointer
hwmon: (hwmon-vid) Add __maybe_unused attribute to dummy variable
Pull x86 jumplabel changes from Peter Anvin:
"One more x86 tree for this merge window. This tree improves the
handling of jump labels, so that most of the time we don't have to do
a massive initial patching run.
Furthermore, we will error out of the jump label is not what is
expected, eg if it has been corrupted or tampered with"
* 'x86/jumplabel' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/jump-label: Show where and what was wrong on errors
x86/jump-label: Add safety checks to jump label conversions
x86/jump-label: Do not bother updating nops if they are correct
x86/jump-label: Use best default nops for inital jump label calls
When adding cpuidle support to pSeries, we introduced two
regressions:
- The new cpuidle backend driver only works under hypervisors
supporting the "SLPLAR" option, which isn't the case of the
old POWER4 hypervisor and the HV "light" used on js2x blades
- The cpuidle driver registers fairly late, meaning that for
a significant portion of the boot process, we end up having
all threads spinning. This slows down the boot process and
increases the overall resource usage if the hypervisor has
shared processors.
This fixes both by implementing a "default" idle that will cede
to the hypervisor when possible, in a very simple way without
all the bells and whisles of cpuidle.
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Acked-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org>
While cross-building for PPC64 I've got
WARNING: drivers/video/built-in.o(.text+0x9f9ca): Section mismatch in
reference from the function .ps3fb_probe() to th e variable
.init.data:ps3fb_fix The function .ps3fb_probe() references the
variable __initdata ps3fb_fix. This is often because .ps3fb_probe
lacks a __initdata annotation or the annotation of ps3fb_fix is wrong.
WARNING: drivers/video/built-in.o(.text+0x9f9d2): Section mismatch in
reference from the function .ps3fb_probe() to the variable
.init.data:ps3fb_fix The function .ps3fb_probe() references the
variable __initdata ps3fb_fix. This is often because .ps3fb_probe
lacks a __initdata annotation or the annotation of ps3fb_fix is wrong.
WARNING: drivers/built-in.o(.text+0xe222a): Section mismatch in
reference from the function .ps3fb_probe() to the variable
.init.data:ps3fb_fix The function .ps3fb_probe() references the
variable __initdata ps3fb_fix. This is often because .ps3fb_probe
lacks a __initdata annotation or the annotation of ps3fb_fix is wrong.
WARNING: drivers/built-in.o(.text+0xe2232): Section mismatch in
reference from the function .ps3fb_probe() to the variable
.init.data:ps3fb_fix The function .ps3fb_probe() references the
variable __initdata ps3fb_fix. This is often because .ps3fb_probe
lacks a __initdata annotation or the annotation of ps3fb_fix is wrong.
WARNING: vmlinux.o(.text+0x561d4a): Section mismatch in reference from
the function .ps3fb_probe() to the variable .init.data:ps3fb_fix The
function .ps3fb_probe() references the variable __initdata ps3fb_fix.
This is often because .ps3fb_probe lacks a __initdata annotation or
the annotation of ps3fb_fix is wrong.
Mismatch was introduced with 48c68c4f "Drivers: video: remove __dev*
attributes."
Remove __init data annotation from ps3fb_fix.
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
While cross-building for PPC64 I've got
WARNING: vmlinux.o(.text.unlikely+0x1ba): Section mismatch in
reference from the function .prom_rtas_call() to the variable
.init.data:dt_string_start The function .prom_rtas_call() references
the variable __initdata dt_string_start. This is often because
.prom_rtas_call lacks a __initdata annotation or the annotation of
dt_string_start is wrong.
WARNING: vmlinux.o(.meminit.text+0xeb0): Section mismatch in reference
from the function .free_area_init_core.isra.47() to the function
.init.text:.set_pageblock_order() The function __meminit
.free_area_init_core.isra.47() references a function __init
.set_pageblock_order(). If .set_pageblock_order is only used by
.free_area_init_core.isra.47 then annotate .set_pageblock_order with a
matching annotation.
Fix it by proper annotation of prom_rtas_call.
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
powerpc allmodconfig build fails with:
ERROR: ".cpu_to_chip_id" [drivers/block/mtip32xx/mtip32xx.ko] undefined!
The problem was introduced with commit 15863ff3b (powerpc: Make chip-id
information available to userspace).
Export the missing symbol.
Cc: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Cc: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The mn10300 kernel crashes just after starting userspace programs, if
CONFIG_PREEMPT is disabled:
Freeing unused kernel memory: 96K (90286000 - 9029e000)
MISALIGN: 97c33ff9: unsupported instruction f
MISALIGN: 97c33ff9: unsupported instruction f
MISALIGN: 97c33ff9: unsupported instruction f
:
This fixes the problem that was introduced by commit d17fc238ac
("MN10300: Enable IRQs more in system call exit work path").
Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding the
entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree core updates from Grant Likely:
"Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding
the entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either"
Tim Bird questions whether the boot time cost of the random feeding may
be noticeable. And "add_device_randomness()" is definitely not some
speed deamon of a function.
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/platform: add error reporting to of_amba_device_create()
irq/of: Fix comment typo for irq_of_parse_and_map
of: Feed entire flattened device tree into the random pool
of/fdt: Clean up casting in unflattening path
of/fdt: Remove duplicate memory clearing on FDT unflattening
gpio: implement gpio-ranges binding document fix
of: call __of_parse_phandle_with_args from of_parse_phandle
of: introduce of_parse_phandle_with_fixed_args
of: move of_parse_phandle()
of: move documentation of of_parse_phandle_with_args
of: Fix missing memory initialization on FDT unflattening
of: consolidate definition of early_init_dt_alloc_memory_arch()
of: Make of_get_phy_mode() return int i.s.o. const int
include: dt-binding: input: create a DT header defining key codes.
of/platform: Staticize of_platform_device_create_pdata()
of: Specify initrd location using 64-bit
dt: Typo fix
OF: make of_property_for_each_{u32|string}() use parameters if OF is not enabled
Pull slave-dmaengine updates from Vinod Koul:
"This pull brings:
- Andy's DW driver updates
- Guennadi's sh driver updates
- Pl08x driver fixes from Tomasz & Alban
- Improvements to mmp_pdma by Daniel
- TI EDMA fixes by Joel
- New drivers:
- Hisilicon k3dma driver
- Renesas rcar dma driver
- New API for publishing slave driver capablities
- Various fixes across the subsystem by Andy, Jingoo, Sachin etc..."
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (94 commits)
dma: edma: Remove limits on number of slots
dma: edma: Leave linked to Null slot instead of DUMMY slot
dma: edma: Find missed events and issue them
ARM: edma: Add function to manually trigger an EDMA channel
dma: edma: Write out and handle MAX_NR_SG at a given time
dma: edma: Setup parameters to DMA MAX_NR_SG at a time
dmaengine: pl330: use dma_set_max_seg_size to set the sg limit
dmaengine: dma_slave_caps: remove sg entries
dma: replace devm_request_and_ioremap by devm_ioremap_resource
dma: ste_dma40: Fix potential null pointer dereference
dma: ste_dma40: Remove duplicate const
dma: imx-dma: Remove redundant NULL check
dma: dmagengine: fix function names in comments
dma: add driver for R-Car HPB-DMAC
dma: k3dma: use devm_ioremap_resource() instead of devm_request_and_ioremap()
dma: imx-sdma: Staticize sdma_driver_data structures
pch_dma: Add MODULE_DEVICE_TABLE
dmaengine: PL08x: Add cyclic transfer support
dmaengine: PL08x: Fix reading the byte count in cctl
dmaengine: PL08x: Add support for different maximum transfer size
...
Core:
- Support Allocation Units 8MB-64MB in SD3.0, previous max was 4MB.
- The slot-gpio helper can now handle GPIO debouncing card-detect.
- Read supported voltages from DT "voltage-ranges" property.
Drivers:
- dw_mmc: Add support for ARC architecture, and support exynos5420.
- mmc_spi: Support CD/RO GPIOs.
- sh_mobile_sdhi: Add compatibility for more Renesas SoCs.
- sh_mmcif: Add DT support for DMA channels.
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Merge tag 'mmc-updates-for-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.12:
Core:
- Support Allocation Units 8MB-64MB in SD3.0, previous max was 4MB.
- The slot-gpio helper can now handle GPIO debouncing card-detect.
- Read supported voltages from DT "voltage-ranges" property.
Drivers:
- dw_mmc: Add support for ARC architecture, and support exynos5420.
- mmc_spi: Support CD/RO GPIOs.
- sh_mobile_sdhi: Add compatibility for more Renesas SoCs.
- sh_mmcif: Add DT support for DMA channels"
* tag 'mmc-updates-for-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (50 commits)
Revert "mmc: tmio-mmc: Remove .set_pwr() callback from platform data"
mmc: dw_mmc: Add support for ARC
mmc: sdhci-s3c: initialize host->quirks2 for using quirks2
mmc: sdhci-s3c: fix the wrong register value, when clock is disabled
mmc: esdhc: add support to get voltage from device-tree
mmc: sdhci: get voltage from sdhc host
mmc: core: parse voltage from device-tree
mmc: omap_hsmmc: use the generic config for omap2plus devices
mmc: omap_hsmmc: clear status flags before starting a new command
mmc: dw_mmc: exynos: Add a new compatible string for exynos5420
mmc: sh_mmcif: revision-specific CLK_CTRL2 handling
mmc: sh_mmcif: revision-specific Command Completion Signal handling
mmc: sh_mmcif: add support for Device Tree DMA bindings
mmc: sh_mmcif: move header include from header into .c
mmc: SDHI: add DT compatibility strings for further SoCs
mmc: dw_mmc-pci: enable bus-mastering mode
mmc: dw_mmc-pci: get resources from a proper BAR
mmc: tmio-mmc: Remove .set_pwr() callback from platform data
mmc: tmio-mmc: Remove .get_cd() callback from platform data
mmc: sh_mobile_sdhi: Remove .set_pwr() callback from platform data
...
device-mapper device. This dm-stats code required the reintroduction of
a div64_u64_rem() helper, but as a separate method that doesn't slow
down div64_u64() -- especially on 32-bit systems.
Allow the error target to replace request-based DM devices
(e.g. multipath) in addition to bio-based DM devices.
Various other small code fixes and improvements to thin-provisioning, DM
cache and the DM ioctl interface.
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Merge tag 'dm-3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device-mapper updates from Mike Snitzer:
"Add the ability to collect I/O statistics on user-defined regions of a
device-mapper device. This dm-stats code required the reintroduction
of a div64_u64_rem() helper, but as a separate method that doesn't
slow down div64_u64() -- especially on 32-bit systems.
Allow the error target to replace request-based DM devices (e.g.
multipath) in addition to bio-based DM devices.
Various other small code fixes and improvements to thin-provisioning,
DM cache and the DM ioctl interface"
* tag 'dm-3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm stripe: silence a couple sparse warnings
dm: add statistics support
dm thin: always return -ENOSPC if no_free_space is set
dm ioctl: cleanup error handling in table_load
dm ioctl: increase granularity of type_lock when loading table
dm ioctl: prevent rename to empty name or uuid
dm thin: set pool read-only if breaking_sharing fails block allocation
dm thin: prefix pool error messages with pool device name
dm: allow error target to replace bio-based and request-based targets
math64: New separate div64_u64_rem helper
dm space map: optimise sm_ll_dec and sm_ll_inc
dm btree: prefetch child nodes when walking tree for a dm_btree_del
dm btree: use pop_frame in dm_btree_del to cleanup code
dm cache: eliminate holes in cache structure
dm cache: fix stacking of geometry limits
dm thin: fix stacking of geometry limits
dm thin: add data block size limits to Documentation
dm cache: add data block size limits to code and Documentation
dm cache: document metadata device is exclussive to a cache
dm: stop using WQ_NON_REENTRANT
Headline item is multithreading for RAID5 so that more
IO/sec can be supported on fast (SSD) devices.
Also TILE-Gx SIMD suppor for RAID6 calculations and an
assortment of bug fixes.
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Merge tag 'md/3.12' of git://neil.brown.name/md
Pull md update from Neil Brown:
"Headline item is multithreading for RAID5 so that more IO/sec can be
supported on fast (SSD) devices. Also TILE-Gx SIMD suppor for RAID6
calculations and an assortment of bug fixes"
* tag 'md/3.12' of git://neil.brown.name/md:
raid5: only wakeup necessary threads
md/raid5: flush out all pending requests before proceeding with reshape.
md/raid5: use seqcount to protect access to shape in make_request.
raid5: sysfs entry to control worker thread number
raid5: offload stripe handle to workqueue
raid5: fix stripe release order
raid5: make release_stripe lockless
md: avoid deadlock when dirty buffers during md_stop.
md: Don't test all of mddev->flags at once.
md: Fix apparent cut-and-paste error in super_90_validate
raid6/test: replace echo -e with printf
RAID: add tilegx SIMD implementation of raid6
md: fix safe_mode buglet.
md: don't call md_allow_write in get_bitmap_file.
