Commit graph

518212 commits

Author SHA1 Message Date
Yan, Zheng
ec137c10e7 ceph: fix uninline data function
For CEPH_OSD_CMPXATTR_MODE_U64, OSD expects the u64 to be encoded
as string in object's xattr.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
2015-04-22 18:33:41 +03:00
Yan, Zheng
0ea611a3bc ceph: rename snapshot support
Signed-off-by: Yan, Zheng <zyan@redhat.com>
2015-04-22 18:33:41 +03:00
Yan, Zheng
c0bd50e2ee ceph: fix null pointer dereference in send_mds_reconnect()
sb->s_root can be null when umounting

Signed-off-by: Yan, Zheng <zyan@redhat.com>
2015-04-22 18:33:31 +03:00
Wolfram Sang
cf82f52d36 watchdog: stmp3xxx_rtc_wdt: fix broken email address
My Pengutronix address is not valid anymore, redirect people to the Pengutronix
kernel team.

Reported-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:30:45 +02:00
Wolfram Sang
e8cc536657 watchdog: pnx4008_wdt: fix broken email address
My Pengutronix address is not valid anymore, redirect people to the Pengutronix
kernel team.

Reported-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:30:41 +02:00
Aaro Koskinen
3a30c07e71 watchdog: octeon: use fixed length string for register names
Use fixed length string for register names. This saves 416 bytes
in text size.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:40 +02:00
Aaro Koskinen
8692cf0ad3 watchdog: octeon: fix some trivial coding style issues
Fix some trivial coding style issues to reduce noise from static analyzers.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:35 +02:00
Aaro Koskinen
3d588c93c0 watchdog: octeon: convert to WATCHDOG_CORE API
Convert OCTEON watchdog to WATCHDOG_CORE API. This enables support
for multiple watchdogs on OCTEON boards.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:31 +02:00
Michal Simek
6290d8c826 watchdog: cadence: Remove Kconfig dependency on ARCH
Remove Kconfig dependency and enable driver for
all ARCHs.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:21 +02:00
Mathieu Olivari
cf79fb14d0 ARM: msm: add watchdog entries to DT timer binding doc
The watchdog has been reworked to use the same DT node as the timer.
This change is updating the device tree doc accordingly.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:16 +02:00
Mathieu Olivari
4ba1c98b55 ARM: qcom: add description of KPSS WDT for IPQ8064
Add the watchdog related entries to the Krait Processor Sub-system
(KPSS) timer IPQ8064 devicetree section. Also, add a fixed-clock
description of SLEEP_CLK, which will do for now.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:28:11 +02:00
Mathieu Olivari
0dfd582e02 watchdog: qcom: use timer devicetree binding
MSM watchdog configuration happens in the same register block as the
timer, so we'll use the same binding as the existing timer.

The qcom-wdt will now be probed when devicetree has an entry compatible
with "qcom,kpss-timer" or "qcom-scss-timer".

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:27:47 +02:00
Joe Perches
e1dbde2960 watchdog: bcm281xx: Remove use of seq_printf return value
The seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c03 ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Guenter Roeck <linux~roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-04-22 15:27:39 +02:00
Paul Gortmaker
4a3893d069 modpost: don't emit section mismatch warnings for compiler optimizations
Currently an allyesconfig build [gcc-4.9.1] can generate the following:

   WARNING: vmlinux.o(.text.unlikely+0x3864): Section mismatch in
   reference from the function cpumask_empty.constprop.3() to the
   variable .init.data:nmi_ipi_mask

which comes from the cpumask_empty usage in arch/x86/kernel/nmi_selftest.c.

Normally we would not see a symbol entry for cpumask_empty since it is:

	static inline bool cpumask_empty(const struct cpumask *srcp)

however in this case, the variant of the symbol gets emitted when GCC does
constant propagation optimization.

Fix things up so that any locally optimized constprop variants don't warn
when accessing variables that live in the __init sections.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:34 +09:30
Paul Gortmaker
09c20c032b modpost: expand pattern matching to support substring matches
Currently the match() function supports a leading * to match any
prefix and a trailing * to match any suffix.  However there currently
is not a combination of both that can be used to target matches of
whole families of functions that share a common substring.

Here we expand the *foo and foo* match to also support *foo* with
the goal of targeting compiler generated symbol names that contain
strings like ".constprop." and ".isra."

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:33 +09:30
Quentin Casasnovas
c5c3439af0 modpost: do not try to match the SHT_NUL section.
Trying to match the SHT_NUL section isn't useful and causes build failures
on parisc and mn10300 since the addition of section strict white-listing
and __ex_table sanitizing.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 050e57fd59 ("modpost: add strict white-listing when referencing....")
Fixes: 52dc0595d5 ("modpost: handle relocations mismatch in __ex_table.")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:33 +09:30
Quentin Casasnovas
e84048aa17 modpost: fix extable entry size calculation.
As Guenter pointed out, we were never really calculating the extable entry
size because the pointer arithmetic was simply wrong.  We want to check
we're handling the second relocation in __ex_table to infer an entry size,
but we were using (void*) pointers instead of Elf_Rel[a]* ones.

This fixes the problem by moving that check in the caller (since we can
deal with different types of relocations) and add is_second_extable_reloc()
to make the whole thing more readable.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:32 +09:30
Quentin Casasnovas
d3df4de7eb modpost: fix inverted logic in is_extable_fault_address().
As Guenter pointed out, we want to assert that extable_entry_size has been
discovered and not the other way around.  Moreover, this sanity check is
only valid when we're not dealing with the first relocation in __ex_table,
since we have not discovered the extable entry size at that point.

This was leading to a divide-by-zero on some architectures and make the
build fail.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:31 +09:30
Rusty Russell
6c730bfc89 modpost: handle -ffunction-sections
52dc0595d5 introduced OTHER_TEXT_SECTIONS for identifying what
sections could validly have __ex_table entries.  Unfortunately, it
wasn't tested with -ffunction-sections, which some architectures
use.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:31 +09:30
Thierry Reding
d7e0abcf4c modpost: Whitelist .text.fixup and .exception.text
32-bit and 64-bit ARM use these sections to store executable code, so
they must be whitelisted in modpost's table of valid text sections.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-04-22 17:31:20 +09:30
Linus Torvalds
db4fd9c5d0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:

 1) ldc_alloc_exp_dring() can be called from softints, so use
    GFP_ATOMIC.  From Sowmini Varadhan.

 2) Some minor warning/build fixups for the new iommu-common code on
    certain archs and with certain debug options enabled.  Also from
    Sowmini Varadhan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
  sparc64: Use M7 PMC write on all chips T4 and onward.
  iommu-common: rename iommu_pool_hash to iommu_hash_common
  iommu-common: fix x86_64 compiler warnings
2015-04-21 23:21:34 -07:00
Linus Torvalds
8aaa51b63c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Just a few fixes trickling in at this point.

  1) If we see an attached socket on an skb in the ipv4 forwarding path,
     bail.  This can happen due to races with FIB rule addition, and
     deletion, and we should just drop such frames.  From Sebastian
     Pöhn.

  2) pppoe receive should only accept packets destined for this hosts's
     MAC address.  From Joakim Tjernlund.

  3) Handle checksum unwrapping properly in ppp receive properly when
     it's encapsulated in UDP in some way, fix from Tom Herbert.

  4) Fix some bugs in mv88e6xxx DSA driver resulting from the conversion
     from register offset constants to mnenomic macros.  From Vivien
     Didelot.

  5) Fix handling of HCA max message size in mlx4 adapters, from Eran
     Ben ELisha"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net/mlx4_core: Fix reading HCA max message size in mlx4_QUERY_DEV_CAP
  tcp: add memory barriers to write space paths
  altera tse: Error-Bit on tx-avalon-stream always set.
  net: dsa: mv88e6xxx: use PORT_DEFAULT_VLAN
  net: dsa: mv88e6xxx: fix setup of port control 1
  ppp: call skb_checksum_complete_unset in ppp_receive_frame
  net: add skb_checksum_complete_unset
  pppoe: Lacks DST MAC address check
  ip_forward: Drop frames with attached skb->sk
2015-04-21 22:37:27 -07:00
Olof Johansson
48c1078509 Urgent pull request for v4.1 to booting for custom kernel
.config files that do not have MFD_SYSCON set.
 
 Omaps now have a dependency to MFD_SYSCON for system control
 module generic register area and some clocks with the changes
 done in omap-for-v4.1/prcm-dts branch.
 
 This can be pulled on top of omap-for-v4.1/prcm-dts, or into
 fixes for v4.1.
 
 We already do have a slight MFD_SYSCON dependency for
 REGULATOR_PBIAS for dual voltage MMC cards on the first MMC
 bus for many devices, so from that point of view this can
 also be merged separately from omap-for-v4.1/prcm-dts.
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Merge tag 'omap-for-v4.1/prcm-dts-mfd-syscon-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/late

Merge "urgent omap boot fix for v4.1 if MFD_SYSCON is not set" from Tony
Lindgren:

Urgent pull request for v4.1 to booting for custom kernel
.config files that do not have MFD_SYSCON set.

Omaps now have a dependency to MFD_SYSCON for system control
module generic register area and some clocks with the changes
done in omap-for-v4.1/prcm-dts branch.

This can be pulled on top of omap-for-v4.1/prcm-dts, or into
fixes for v4.1.

We already do have a slight MFD_SYSCON dependency for
REGULATOR_PBIAS for dual voltage MMC cards on the first MMC
bus for many devices, so from that point of view this can
also be merged separately from omap-for-v4.1/prcm-dts.

* tag 'omap-for-v4.1/prcm-dts-mfd-syscon-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-21 21:45:15 -07:00
Linus Torvalds
f614c8178b Merge branch 'parisc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "The patch by Guenter Roeck fixes the build on parisc which got broken
  because of commit f24ffde432 ("parisc: expose number of page table
  levels on Kconfig level") and the patch from Matthew Wilcox converts
  our code to use the generic scatterlist.h header file"

* 'parisc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
  parisc: Eliminate sg_virt_addr() and private scatterlist.h
2015-04-21 17:57:28 -07:00
Eran Ben Elisha
fab9adfb71 net/mlx4_core: Fix reading HCA max message size in mlx4_QUERY_DEV_CAP
Currently we parse max_msg_sz from the wrong offset in QUERY_DEV_CAP,
fix to use the right offset.

Fixes: 0b131561a7 ('net/mlx4_en: Add Flow control statistics [..]')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-21 17:36:08 -04:00
Bjorn Helgaas
9fbbda5c8e ia64/PCI: Treat all host bridge Address Space Descriptors (even consumers) as windows
Prior to c770cb4cb5 ("PCI: Mark invalid BARs as unassigned"), if we tried
to claim a PCI BAR but could not find an upstream bridge window that
matched it, we complained but still allowed the device to be enabled.

c770cb4cb5 broke devices that previously worked (mptsas and igb in the
case Tony reported, but it could be any devices) because it marks those
BARs as IORESOURCE_UNSET, which makes pci_enable_device() complain and
return failure:

  igb 0000:81:00.0: can't enable device: BAR 0 [mem size 0x00020000] not assigned
  igb: probe of 0000:81:00.0 failed with error -22

The underlying cause is an ACPI Address Space Descriptor for a PCI host
bridge window that is marked as "consumer".  This is a firmware defect:
resources that are produced on the downstream side of a bridge should be
marked "producer".  But rejecting these BARs that we previously allowed is
a functionality regression, and firmware has not used the producer/consumer
bit consistently, so we can't rely on it anyway.

Stop checking the producer/consumer bit, and assume all bridge Address
Space Descriptors are for bridge windows.

Note that this change does not affect I/O Port or Fixed Location I/O Port
Descriptors, which are commonly used for the [io 0x0cf8-0x0cff] config
access range.  That range is a "consumer" range and should not be treated
as a window.

Fixes: c770cb4cb5 ("PCI: Mark invalid BARs as unassigned")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=96961
Reported-and-tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-21 15:29:39 -05:00
Sowmini Varadhan
0edfad5959 sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-21 13:17:06 -07:00
Andreas Gruenbacher
bff175238a uapi: Remove kernel internal declaration
The enum nfs4_acl_whotype is only used in nfs4d's internal nfs4 acl
representation. No longer expose it to user space.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:04 -04:00
Giuseppe Cantavenera
bb7ffbf29e nfsd: fix nsfd startup race triggering BUG_ON
nfsd triggered a BUG_ON in net_generic(...) when rpc_pipefs_event(...)
in fs/nfsd/nfs4recover.c was called before assigning ntfsd_net_id.
The following was observed on a MIPS 32-core processor:
kernel: Call Trace:
kernel: [<ffffffffc00bc5e4>] rpc_pipefs_event+0x7c/0x158 [nfsd]
kernel: [<ffffffff8017a2a0>] notifier_call_chain+0x70/0xb8
kernel: [<ffffffff8017a4e4>] __blocking_notifier_call_chain+0x4c/0x70
kernel: [<ffffffff8053aff8>] rpc_fill_super+0xf8/0x1a0
kernel: [<ffffffff8022204c>] mount_ns+0xb4/0xf0
kernel: [<ffffffff80222b48>] mount_fs+0x50/0x1f8
kernel: [<ffffffff8023dc00>] vfs_kern_mount+0x58/0xf0
kernel: [<ffffffff802404ac>] do_mount+0x27c/0xa28
kernel: [<ffffffff80240cf0>] SyS_mount+0x98/0xe8
kernel: [<ffffffff80135d24>] handle_sys64+0x44/0x68
kernel:
kernel:
        Code: 0040f809  00000000  2e020001 <00020336> 3c12c00d
                3c02801a  de100000 6442eb98  0040f809
kernel: ---[ end trace 7471374335809536 ]---

Fixed this behaviour by calling register_pernet_subsys(&nfsd_net_ops) before
registering rpc_pipefs_event(...) with the notifier chain.

Signed-off-by: Giuseppe Cantavenera <giuseppe.cantavenera.ext@nokia.com>
Signed-off-by: Lorenzo Restelli <lorenzo.restelli.ext@nokia.com>
Reviewed-by: Kinlong Mee <kinglongmee@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:03 -04:00
Mark Salter
135dd002c2 nfsd: eliminate NFSD_DEBUG
Commit f895b252d4 ("sunrpc: eliminate RPC_DEBUG") introduced
use of IS_ENABLED() in a uapi header which leads to a build
failure for userspace apps trying to use <linux/nfsd/debug.h>:

   linux/nfsd/debug.h:18:15: error: missing binary operator before token "("
  #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
                ^

Since this was only used to define NFSD_DEBUG if CONFIG_SUNRPC_DEBUG
is enabled, replace instances of NFSD_DEBUG with CONFIG_SUNRPC_DEBUG.

Cc: stable@vger.kernel.org
Fixes: f895b252d4 "sunrpc: eliminate RPC_DEBUG"
Signed-off-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:02 -04:00
J. Bruce Fields
6e4891dc28 nfsd4: fix READ permission checking
In the case we already have a struct file (derived from a stateid), we
still need to do permission-checking; otherwise an unauthorized user
could gain access to a file by sniffing or guessing somebody else's
stateid.

Cc: stable@vger.kernel.org
Fixes: dc97618ddd "nfsd4: separate splice and readv cases"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:01 -04:00
J. Bruce Fields
980608fb50 nfsd4: disallow SEEK with special stateids
If the client uses a special stateid then we'll pass a NULL file to
vfs_llseek.

Fixes: 24bab49122 " NFSD: Implement SEEK"
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: stable@vger.kernel.org
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:01 -04:00
David S. Miller
df386375ff sparc64: Use M7 PMC write on all chips T4 and onward.
They both work equally well, and the M7 implementation is
simpler and cheaper (less register writes).

With help from David Ahern.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-21 13:14:53 -07:00
Bjorn Helgaas
af539e985b MAINTAINERS: Remove Mohit Kumar (email bounces)
Email to Mohit Kumar <mohit.kumar@st.com> has been bouncing, so remove the
address from MAINTAINERS and add an entry in CREDITS.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-21 15:12:22 -05:00
Guenter Roeck
c19edb6946 parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
The following warning is seen when compiling parisc images

./arch/parisc/include/asm/pgalloc.h: In function 'pgd_alloc':
./arch/parisc/include/asm/pgalloc.h:29:5: warning: "PT_NLEVELS" is not defined

Some definitions of PT_NLEVELS were missed with the conversion to
CONFIG_PGTABLE_LEVELS.

Fixes: f24ffde432 ("parisc: expose number of page table levels
	on Kconfig level")
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2015-04-21 22:04:03 +02:00
Matthew Wilcox
8bf8a1d1c1 parisc: Eliminate sg_virt_addr() and private scatterlist.h
The only reason to keep parisc's private asm/scatterlist.h was that it
had the macro sg_virt_addr().  Convert all callers to use something else
(sometimes just sg->offset was enough, others should use sg_virt()), and
we can just use the asm-generic scatterlist.h instead.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Dave Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2015-04-21 22:02:43 +02:00
jbaron@akamai.com
3c7151275c tcp: add memory barriers to write space paths
Ensure that we either see that the buffer has write space
in tcp_poll() or that we perform a wakeup from the input
side. Did not run into any actual problem here, but thought
that we should make things explicit.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-21 15:57:34 -04:00
Linus Torvalds
b8ce8d7222 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input subsystem updates from Dmitry Torokhov:

 - an update to Atmel MXT driver that makes it functional on Google
   Pixel 2 boxes (both touchpad and touchscreen)

 - a new VMware VMMouse driver that should allow us drop X vmmouse
   driver that requires root privileges (since it accesses ioports)

 - XBox One controllers now support force feedback (rumble)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: lm8333 - fix broken email address
  Input: cyapa - fix setting suspend scan rate
  Input: elan_i2c - fix calculating number of x and y traces.
  Input: elan_i2c - report hovering contacts
  Input: elants_i2c - zero-extend hardware ID in firmware name
  Input: alps - document separate pointstick button bits for V2 devices
  Input: atmel_mxt_ts - add support for Google Pixel 2
  Input: xpad - add rumble support for Xbox One controller
  Input: ff-core - use new debug macros
  Input: add vmmouse driver
  Input: elan_i2c - adjust for newer firmware pressure reporting
2015-04-21 12:54:08 -07:00
Linus Torvalds
1d11437f4f media: remove unused variable that causes a warning
My 'allmodconfig' build is _almost_ free of warnings, and most of the
remaining ones are for legacy drivers that just do bad things that I
can't find it in my black heart to care too much about.  But this one
was just annoying me:

   drivers/media/v4l2-core/videobuf2-core.c:3256:26: warning: unused variable ‘fileio’ [-Wunused-variable]

because commit 0e66100637 ("[media] vb2: fix 'UNBALANCED' warnings
when calling vb2_thread_stop()") removed all users of 'fileio' and
instead calls "__vb2_cleanup_fileio(q)" to clean up q->fileio.  But the
now unused 'fileio' variable was left around.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-21 12:49:33 -07:00
J. Bruce Fields
5ba4a25ab7 nfsd4: disallow ALLOCATE with special stateids
vfs_fallocate will hit a NULL dereference if the client tries an
ALLOCATE or DEALLOCATE with a special stateid.  Fix that.  (We also
depend on the open to have broken any conflicting leases or delegations
for us.)

(If it turns out we need to allow special stateid's then we could do a
temporary open here in the special-stateid case, as we do for read and
write.  For now I'm assuming it's not necessary.)

Fixes: 95d871f03c "nfsd: Add ALLOCATE support"
Cc: stable@vger.kernel.org
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 15:44:06 -04:00
Dmitry Torokhov
48853389f2 Merge branch 'next' into for-linus
Prepare second round of updates for 4.1 merge window.
2015-04-21 11:12:42 -07:00
Linus Torvalds
0c8027d50c media updates for v4.1-rc1
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Merge tag 'media/v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - a new frontend driver for new ATSC devices: lgdt3306a

 - a new sensor driver: ov2659

 - a new platform driver: xilinx

 - the m88ts2022 tuner driver was merged at ts2020 driver

 - the media controller gained experimental support for DVB and hybrid
   devices

 - lots of random cleanups, fixes and improvements on media drivers

* tag 'media/v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (404 commits)
  [media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
  [media] uvcvideo: fix cropcap v4l2-compliance failure
  [media] media: omap3isp: remove unused clkdev
  [media] coda: Add tracing support
  [media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
  [media] coda: fix fill bitstream errors in nonstreaming case
  [media] coda: call SEQ_END when the first queue is stopped
  [media] coda: fail to start streaming if userspace set invalid formats
  [media] coda: remove duplicate error messages for buffer allocations
  [media] coda: move parameter buffer in together with context buffer allocation
  [media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
  [media] coda: allocate per-context buffers from REQBUFS
  [media] coda: use strlcpy instead of snprintf
  [media] coda: bitstream payload is unsigned
  [media] coda: fix double call to debugfs_remove
  [media] coda: check kasprintf return value in coda_open
  [media] coda: bitrate can only be set in kbps steps
  [media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
  [media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
  [media] coda: set allow_zero_bytesused flag for vb2_queue_init
  ...
2015-04-21 10:01:27 -07:00
Linus Torvalds
1fc149933f Char/Misc driver patches for 4.1-rc1
Here's the big char/misc driver patchset for 4.1-rc1.
 
 Lots of different driver subsystem updates here, nothing major, full
 details are in the shortlog below.
 
 All of this has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver patchset for 4.1-rc1.

  Lots of different driver subsystem updates here, nothing major, full
  details are in the shortlog.

  All of this has been in linux-next for a while"

* tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (133 commits)
  mei: trace: remove unused TRACE_SYSTEM_STRING
  DTS: ARM: OMAP3-N900: Add lis3lv02d support
  Documentation: DT: lis302: update wakeup binding
  lis3lv02d: DT: add wakeup unit 2 and wakeup threshold
  lis3lv02d: DT: use s32 to support negative values
  Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
  Drivers: hv: hv_balloon: correctly handle val.freeram<num_pages case
  mei: replace check for connection instead of transitioning
  mei: use mei_cl_is_connected consistently
  mei: fix mei_poll operation
  hv_vmbus: Add gradually increased delay for retries in vmbus_post_msg()
  Drivers: hv: hv_balloon: survive ballooning request with num_pages=0
  Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
  Drivers: hv: hv_balloon: do not online pages in offline blocks
  hv: remove the per-channel workqueue
  hv: don't schedule new works in vmbus_onoffer()/vmbus_onoffer_rescind()
  hv: run non-blocking message handlers in the dispatch tasklet
  coresight: moving to new "hwtracing" directory
  coresight-tmc: Adding a status interface to sysfs
  coresight: remove the unnecessary configuration coresight-default-sink
  ...
2015-04-21 09:42:58 -07:00
Linus Torvalds
41d5e08ea8 TTY/Serial patches for 4.1-rc1
Here's the big tty/serial driver update for 4.1-rc1.
 
 It was delayed for a bit due to some questions surrounding some of the
 console command line parsing changes that are in here.  There's still
 one tiny regression for people who were previously putting multiple
 console command lines and expecting them all to be ignored for some odd
 reason, but Peter is working on fixing that.  If not, I'll send a revert
 for the offending patch, but I have faith that Peter can address it.
 
 Other than the console work here, there's the usual serial driver
 updates and changes, and a buch of 8250 reworks to try to make that
 driver easier to maintain over time, and have it support more devices in
 the future.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the big tty/serial driver update for 4.1-rc1.

  It was delayed for a bit due to some questions surrounding some of the
  console command line parsing changes that are in here.  There's still
  one tiny regression for people who were previously putting multiple
  console command lines and expecting them all to be ignored for some
  odd reason, but Peter is working on fixing that.  If not, I'll send a
  revert for the offending patch, but I have faith that Peter can
  address it.

  Other than the console work here, there's the usual serial driver
  updates and changes, and a buch of 8250 reworks to try to make that
  driver easier to maintain over time, and have it support more devices
  in the future.

  All of these have been in linux-next for a while"

* tag 'tty-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits)
  n_gsm: Drop unneeded cast on netdev_priv
  sc16is7xx: expose RTS inversion in RS-485 mode
  serial: 8250_pci: port failed after wakeup from S3
  earlycon: 8250: Document kernel command line options
  earlycon: 8250: Fix command line regression
  earlycon: Fix __earlycon_table stride
  tty: clean up the tty time logic a bit
  serial: 8250_dw: only get the clock rate in one place
  serial: 8250_dw: remove useless ACPI ID check
  dmaengine: hsu: move memory allocation to GFP_NOWAIT
  dmaengine: hsu: remove redundant pieces of code
  serial: 8250_pci: add Intel Tangier support
  dmaengine: hsu: add Intel Tangier PCI ID
  serial: 8250_pci: replace switch-case by formula for Intel MID
  serial: 8250_pci: replace switch-case by formula
  tty: cpm_uart: replace CONFIG_8xx by CONFIG_CPM1
  serial: jsm: some off by one bugs
  serial: xuartps: Fix check in console_setup().
  serial: xuartps: Get rid of register access macros.
  serial: xuartps: Fix iobase use.
  ...
2015-04-21 09:33:10 -07:00
Linus Torvalds
8d582b9429 This fixes the annoying Kconfig noise from pin control.
Mea Culpa.
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Merge tag 'pinctrl-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pincontrol Kconfig fix from Linus Walleij:
 "This fixes the annoying Kconfig noise from pin control.  Mea Culpa"

* tag 'pinctrl-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: fix allmodconfig noise
2015-04-21 09:31:26 -07:00
Linus Torvalds
e98bf5cedf The changes to the common clock framework for 4.0 are mostly new clock
drivers and updates to existing ones for feature enhancements and bug
 fixes. There is more churn than usual in the framework core due to the
 change to introduce per-user unique struct clk pointers in 4.0. This
 caused several regressions to surface, some of which were sent as fixes
 to 4.0. New generic clock drivers were added for GPIO- and PWM-based
 clock controllers. Additionally the common clk-divider code recieved
 several fixes to the way it rounds rates.
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Merge tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.0 are mostly new clock
  drivers and updates to existing ones for feature enhancements and bug
  fixes.

  There is more churn than usual in the framework core due to the change
  to introduce per-user unique struct clk pointers in 4.0.  This caused
  several regressions to surface, some of which were sent as fixes to
  4.0.  New generic clock drivers were added for GPIO- and PWM-based
  clock controllers.

  Additionally the common clk-divider code recieved several fixes to the
  way it rounds rates"

* tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (91 commits)
  clk: check ->determine/round_rate() return value in clk_calc_new_rates
  clk: at91: usb: propagate rate modification to the parent clk
  clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC
  clk: don't use __initconst for non-const arrays
  clk: at91: change to using endian agnositc IO
  clk: clk-gpio-gate: Fix active low
  clk: Add PWM clock driver
  clk: Add clock driver for mb86s7x
  clk: pxa: pxa3xx: add missing os timer clock
  clk: tegra: Use the proper parent for plld_dsi
  clk: tegra: Use generic tegra_osc_clk_init() on Tegra114
  clk: tegra: Model oscillator as clock
  clk: tegra: Add peripheral registers for bank Y
  clk: tegra: Register the proper number of resets
  clk: tegra: Remove needless initializations
  clk: tegra: Use consistent indentation
  clk: tegra: Various whitespace cleanups
  clk: tegra: Enable HDA to HDMI clocks on Tegra124
  clk: tegra: Fix a bunch of sparse warnings
  clk: tegra: Fix typo tabel -> table
  ...
2015-04-21 09:24:09 -07:00
Linus Torvalds
8f443e2372 Revert "ocfs2: incorrect check for debugfs returns"
This reverts commit e2ac55b6a8.

Huang Ying reports that this causes a hang at boot with debugfs disabled.

It is true that the debugfs error checks are kind of confusing, and this
code certainly merits more cleanup and thinking about it, but there's
something wrong with the trivial "check not just for NULL, but for error
pointers too" patch.

Yes, with debugfs disabled, we will end up setting the o2hb_debug_dir
pointer variable to an error pointer (-ENODEV), and then continue as if
everything was fine.  But since debugfs is disabled, all the _users_ of
that pointer end up being compiled away, so even though the pointer can
not be dereferenced, that's still fine.

So it's confusing and somewhat questionable, but the "more correct"
error checks end up causing more trouble than they fix.

Reported-by: Huang Ying <ying.huang@intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Chengyu Song <csong84@gatech.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-21 09:17:28 -07:00
Mauro Carvalho Chehab
64131a87f2 Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits)
  media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
  hexdump: avoid warning in test function
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  smp: Fix error case handling in smp_call_function_*()
  iommu-common: Fix PARISC compile-time warnings
  sparc: Make LDC use common iommu poll management functions
  sparc: Make sparc64 use scalable lib/iommu-common.c functions
  Break up monolithic iommu table/lock into finer graularity pools and lock
  sparc: Revert generic IOMMU allocator.
  tools/power turbostat: correct dumped pkg-cstate-limit value
  tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL
  tools/power turbostat: correct DRAM RAPL units on recent Xeon processors
  tools/power turbostat: Initial Skylake support
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  tools/power turbostat: modprobe msr, if needed
  tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
  tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names
  Bluetooth: hidp: Fix regression with older userspace and flags validation
  config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
  perf/x86/intel/pt: Fix and clean up error handling in pt_event_add()
  ...

That solves several merge conflicts:
	Documentation/DocBook/media/v4l/subdev-formats.xml
	Documentation/devicetree/bindings/vendor-prefixes.txt
	drivers/staging/media/mn88473/mn88473.c
	include/linux/kconfig.h
	include/uapi/linux/media-bus-format.h

The ones at subdev-formats.xml and media-bus-format.h are not trivial.
That's why we opted to merge from DRM.
2015-04-21 09:44:55 -03:00
Mauro Carvalho Chehab
676ee36be0 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (404 commits)
  [media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
  [media] uvcvideo: fix cropcap v4l2-compliance failure
  [media] media: omap3isp: remove unused clkdev
  [media] coda: Add tracing support
  [media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
  [media] coda: fix fill bitstream errors in nonstreaming case
  [media] coda: call SEQ_END when the first queue is stopped
  [media] coda: fail to start streaming if userspace set invalid formats
  [media] coda: remove duplicate error messages for buffer allocations
  [media] coda: move parameter buffer in together with context buffer allocation
  [media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
  [media] coda: allocate per-context buffers from REQBUFS
  [media] coda: use strlcpy instead of snprintf
  [media] coda: bitstream payload is unsigned
  [media] coda: fix double call to debugfs_remove
  [media] coda: check kasprintf return value in coda_open
  [media] coda: bitrate can only be set in kbps steps
  [media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
  [media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
  [media] coda: set allow_zero_bytesused flag for vb2_queue_init
  ...
2015-04-21 06:12:35 -03:00
Andreas Oetken
71cd26e76a altera tse: Error-Bit on tx-avalon-stream always set.
The Error-Bit on the avalon streaming interface of the
tx-dma-channel was always set. In SGMII configurations
this leads to error-symbols on the PCS and packet-rejection
on the receiver side (e.g. SGMII/1000Base-X connected switch).

This only applies to the tse-configuration with MSGDMA.

This issue was detected and fixed on a custom board with
a direct connection to a Marvell switch in SGMII-PHY-Mode.
(incl. custom patches for SGMII-PCS).

According to the datasheet if ff_tx_err (avalon-streaming)
is set it is forwarded to gm_tx_err. As a result the PCS
is forwarding the error by sending a "/V/"-caracter.

Signed-off-by: Andreas Oetken <ennoerlangen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-20 22:01:16 -04:00