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824812 Commits (62be257e986dab439537b3e1c19ef746a13e1860)

Author SHA1 Message Date
Steve French 779ede040d smb3: add dynamic tracepoints for simple fallocate and zero range
Can be helpful in debugging various xfstests that are currently
skipped or failing due to missing features in our current
implementation of fallocate.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 72c419d9b0 cifs: fix smb3_zero_range so it can expand the file-size when required
This allows fallocate -z to work against a Windows2016 share.

This is due to the SMB3 ZERO_RANGE command does not modify the filesize.
To address this we will now append a compounded SET-INFO to update the
end-of-file information.

This brings xfstests generic/469 closer to working against a windows share.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg ccdc77a305 cifs: add SMB2_ioctl_init/free helpers to be used with compounding
Define an _init() and a _free() function for SMB2_init so that we will
be able to use it with compounds.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-03-14 19:32:35 -05:00
Steve French 8191576a12 smb3: Add dynamic trace points for various compounded smb3 ops
Adds trace points for enter and exit (done vs. error) for:

	compounded query and setinfo, hardlink, rename,
	mkdir, rmdir, set_eof, delete (unlink)

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg b0f6df737a cifs: cache FILE_ALL_INFO for the shared root handle
When we open the shared root handle also ask for FILE_ALL_INFORMATION since
we can do this at zero cost as part of a compound.
Cache this information as long as the lease is held and return and serve any
future requests from cache.

This allows us to serve "stat /<mountpoint>" directly from cache and avoid
a network roundtrip.  Since clients often want to do this quite a lot
this improve performance slightly.

As an example: xfstest generic/533 performs 43 stat operations on the root
of the share while it is run. Which are eliminated with this patch.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Steve French ab7b10cf4f smb3: display volume serial number for shares in /proc/fs/cifs/DebugData
It can be helpful for debugging.  According to MS-FSCC:

"A 32-bit unsigned integer that contains the serial number of the
volume. The serial number is an opaque value generated by the file
system at format time"

Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 257b78099b cifs: simplify how we handle credits in compound_send_recv()
Since we can now wait for multiple requests atomically in
wait_for_free_request() we can now greatly simplify the handling
of the credits in this function.

This fixes a potential deadlock where many concurrent compound requests
could each have reserved 1 or 2 credits each but are all blocked
waiting for the final credits they need to be able to issue the requests
to the server.

Set a default timeout of 60 seconds for compounded requests.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Steve French 7937ca961c smb3: add dynamic tracepoint for timeout waiting for credits
To help debug credit starvation problems where we timeout
waiting for server to grant the client credits.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Steve French ffd1ef1e50 smb3: display security information in /proc/fs/cifs/DebugData more accurately
When the server required encryption (but we didn't connect to it with the
"seal" mount option) we weren't displaying in /proc/fs/cifs/DebugData that
the tcon for that share was encrypted. Similarly we were not displaying
that signing was required when ses->sign was enabled (we only
checked ses->server->sign).  This makes it easier to debug when in
fact the connection is signed (or sealed), whether for performance
or security questions.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 2b53b929fa cifs: add a timeout argument to wait_for_free_credits
A negative timeout is the same as the current behaviour, i.e. no timeout.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 16b34aa44b cifs: prevent starvation in wait_for_free_credits for multi-credit requests
Reserve the last MAX_COMPOUND credits for any request asking for >1 credit.
This is to prevent future compound requests from becoming starved while waiting
for potentially many requests is there is a large number of concurrent
singe-credit requests.

However, we need to protect from servers that are very slow to hand out
new credits on new sessions so we only do this IFF there are 2*MAX_COMPOUND
(arbitrary) credits already in flight.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg b227d215de cifs: wait_for_free_credits() make it possible to wait for >=1 credits
Change wait_for_free_credits() to allow waiting for >=1 credits instead of just
a single credit.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 4230cff8c0 cifs: pass flags down into wait_for_free_credits()
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Ronnie Sahlberg 480b1cb9da cifs: change wait_for_free_request() to take flags as argument
and compute timeout and optyp from it.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2019-03-14 19:32:35 -05:00
Masami Hiramatsu a039480e9e tracing/probe: Verify alloc_trace_*probe() result
Since alloc_trace_*probe() returns -EINVAL only if !event && !group,
it should not happen in trace_*probe_create(). If we catch that case
there is a bug. So use WARN_ON_ONCE() instead of pr_info().

Link: http://lkml.kernel.org/r/155253785078.14922.16902223633734601469.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-03-14 19:54:21 -04:00
Masami Hiramatsu 5b7a962209 tracing/probe: Check event/group naming rule at parsing
Check event and group naming rule at parsing it instead
of allocating probes.

Link: http://lkml.kernel.org/r/155253784064.14922.2336893061156236237.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-03-14 19:54:11 -04:00
Masami Hiramatsu b4443c17a3 tracing/probe: Check the size of argument name and body
Check the size of argument name and expression is not 0
and smaller than maximum length.

Link: http://lkml.kernel.org/r/155253783029.14922.12650939303827581096.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-03-14 19:53:57 -04:00
Masami Hiramatsu dec65d79fd tracing/probe: Check event name length correctly
Ensure given name of event is not too long when parsing it,
and fix to update event name offset correctly when the group
name is given. For example, this makes probe event to check
the "p:foo/" error case correctly.

Link: http://lkml.kernel.org/r/155253782046.14922.14724124823730168629.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-03-14 19:53:47 -04:00
Masami Hiramatsu 287c038c0b tracing/probe: Check maxactive error cases
Check maxactive on kprobe error case, because maxactive
is only for kretprobe, not for kprobe. Also, maxactive
should not be 0, it should be at least 1.

Link: http://lkml.kernel.org/r/155253780952.14922.15784129810238750331.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-03-14 19:53:29 -04:00
Linus Torvalds f261c4e529 Merge branch 'akpm' (patches from Andrew)
Merge misc patches from Andrew Morton:

- a little bit more MM

- a few fixups

[ The "little bit more MM" is actually just one of the three patches
  Andrew sent for mm/filemap.c, I'm still mulling over two more of them
  from Josef Bacik     - Linus ]

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
  tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind
  zram: default to lzo-rle instead of lzo
  filemap: pass vm_fault to the mmap ra helpers
2019-03-14 15:10:10 -07:00
Pi-Hsun Shih a4046c06be include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
Use offsetof() to calculate offset of a field to take advantage of
compiler built-in version when possible, and avoid UBSAN warning when
compiling with Clang:

  UBSAN: Undefined behaviour in mm/swapfile.c:3010:38
  member access within null pointer of type 'union swap_header'
  CPU: 6 PID: 1833 Comm: swapon Tainted: G S                4.19.23 #43
  Call trace:
   dump_backtrace+0x0/0x194
   show_stack+0x20/0x2c
   __dump_stack+0x20/0x28
   dump_stack+0x70/0x94
   ubsan_epilogue+0x14/0x44
   ubsan_type_mismatch_common+0xf4/0xfc
   __ubsan_handle_type_mismatch_v1+0x34/0x54
   __se_sys_swapon+0x654/0x1084
   __arm64_sys_swapon+0x1c/0x24
   el0_svc_common+0xa8/0x150
   el0_svc_compat_handler+0x2c/0x38
   el0_svc_compat+0x8/0x18

Link: http://lkml.kernel.org/r/20190312081902.223764-1-pihsun@chromium.org
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-14 14:36:20 -07:00
Alexey Dobriyan 17415606f9 tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind
: selftests: proc: proc-pid-vm
: ========================================
: proc-pid-vm: proc-pid-vm.c:277: main: Assertion `rv == strlen(buf0)' failed.
: Aborted

Because the vsyscall mapping is enabled.  Read from vsyscall page to tell
if vsyscall is being used.

Link: http://lkml.kernel.org/r/20190307183204.GA11405@avx2
Link: http://lkml.kernel.org/r/20190219094722.GB28258@shao2-debian
Fixes: 34aab6bec23e7e9 ("proc: test /proc/*/maps, smaps, smaps_rollup, statm")
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-14 14:36:20 -07:00
Dave Rodgman ce82f19fd5 zram: default to lzo-rle instead of lzo
lzo-rle gives higher performance and similar compression ratios to lzo.

Link: http://lkml.kernel.org/r/20190205155944.16007-4-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-14 14:36:20 -07:00
Josef Bacik 2a1180f1bd filemap: pass vm_fault to the mmap ra helpers
All of the arguments to these functions come from the vmf.

Cut down on the amount of arguments passed by simply passing in the vmf
to these two helpers.

Link: http://lkml.kernel.org/r/20181211173801.29535-3-josef@toxicpanda.com
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-14 14:36:20 -07:00
Linus Torvalds 3b319ee220 Additional ACPI updates for 5.1-rc1
- Fix a crash caused by unloading an SSDT overlay (Andy Shevchenko).
 
  - Prevent user space from getting confusing error values on failing
    ACPI sysfs accesses (Rafael Wysocki).
 
  - Simplify leaf node detection in the PPTT parsing code by using a
    new flag defined in ACPI 6.3 (Jeremy Linton).
 
  - Add missing "static" in some places in the ACPI configfs code
    (Andy Shevchenko).
 
  - Fix acpidbg tool path in the ACPI documentation (Flavio Suligoi).
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Merge tag 'acpi-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These fix a couple of issues and do some cleanups on top of the
  previous ACPI changes for 5.1-rc1.

  Specifics:

   - Fix a crash caused by unloading an SSDT overlay (Andy Shevchenko)

   - Prevent user space from getting confusing error values on failing
     ACPI sysfs accesses (Rafael Wysocki)

   - Simplify leaf node detection in the PPTT parsing code by using a
     new flag defined in ACPI 6.3 (Jeremy Linton)

   - Add missing "static" in some places in the ACPI configfs code (Andy
     Shevchenko)

   - Fix acpidbg tool path in the ACPI documentation (Flavio Suligoi)"

* tag 'acpi-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: sysfs: Prevent get_status() from returning acpi_status
  ACPI / device_sysfs: Avoid OF modalias creation for removed device
  ACPI / configfs: Mark local data structures static
  ACPI / configfs: Mark local functions static
  ACPI: tables: Simplify PPTT leaf node detection
  ACPI: Documentation: Fix path for acpidbg tool
2019-03-14 10:48:14 -07:00
Linus Torvalds 9352ca585b Additional power management updates for 5.1-rc1
- Fix registration of new cpuidle governors partially broken during
    the 5.0 development cycle by mistake (Rafael Wysocki).
 
  - Avoid integer overflows in the menu cpuidle governor by making
    it discard the overflowing data points upfront (Rafael Wysocki).
 
  - Fix minor mistake in the recent update of the iowait boost
    computation in the intel_pstate driver (Rafael Wysocki).
 
  - Drop incorrect __init annotation from one function in the pxa2xx
    cpufreq driver (Arnd Bergmann).
 
  - Fix the operating performance points (OPP) framework
    initialization for devices in multiple power domains if
    only one of them is scalable (Rajendra Nayak).
 
  - Fix mistake in dev_pm_opp_set_rate() which causes it to skip
    updating the performance state if the new frequency is the same
    as the old one (Viresh Kumar).
 
  - Rework the cancellation of wakeup source timers to avoid
    potential issues with it and do some cleanups unlocked by
    that change (Viresh Kumar, Rafael Wysocki).
 
  - Clean up the code computing the active/suspended time of devices
    in the PM-runtime framework after recent changes (Ulf Hansson).
 
  - Make the power management infrastructure code use pr_fmt()
    consistently (Joe Perches).
 
  - Clean up the generic power domains (genpd) framework somewhat
    (Aisheng Dong).
 
  - Improve kerneldoc comments for two functions in the cpufreq core
    (Rafael Wysocki).
 
  - Fix typo in a PM QoS file description comment (Aisheng Dong).
 
  - Update the handling of CPU boost frequencies in the cpupower
    utility (Abhishek Goel).
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Merge tag 'pm-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These are mostly fixes and cleanups on top of the previously merged
  power management material for 5.1-rc1 with one cpupower utility update
  that wasn't pushed earlier due to unfortunate timing.

  Specifics:

   - Fix registration of new cpuidle governors partially broken during
     the 5.0 development cycle by mistake (Rafael Wysocki).

   - Avoid integer overflows in the menu cpuidle governor by making it
     discard the overflowing data points upfront (Rafael Wysocki).

   - Fix minor mistake in the recent update of the iowait boost
     computation in the intel_pstate driver (Rafael Wysocki).

   - Drop incorrect __init annotation from one function in the pxa2xx
     cpufreq driver (Arnd Bergmann).

   - Fix the operating performance points (OPP) framework initialization
     for devices in multiple power domains if only one of them is
     scalable (Rajendra Nayak).

   - Fix mistake in dev_pm_opp_set_rate() which causes it to skip
     updating the performance state if the new frequency is the same as
     the old one (Viresh Kumar).

   - Rework the cancellation of wakeup source timers to avoid potential
     issues with it and do some cleanups unlocked by that change (Viresh
     Kumar, Rafael Wysocki).

   - Clean up the code computing the active/suspended time of devices in
     the PM-runtime framework after recent changes (Ulf Hansson).

   - Make the power management infrastructure code use pr_fmt()
     consistently (Joe Perches).

   - Clean up the generic power domains (genpd) framework somewhat
     (Aisheng Dong).

   - Improve kerneldoc comments for two functions in the cpufreq core
     (Rafael Wysocki).

   - Fix typo in a PM QoS file description comment (Aisheng Dong).

   - Update the handling of CPU boost frequencies in the cpupower
     utility (Abhishek Goel)"

* tag 'pm-5.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: governor: Add new governors to cpuidle_governors again
  cpufreq: intel_pstate: Fix up iowait_boost computation
  PM / OPP: Update performance state when freq == old_freq
  PM / wakeup: Drop wakeup_source_drop()
  PM / wakeup: Rework wakeup source timer cancellation
  PM / domains: Remove one unnecessary blank line
  PM / Domains: Return early for all errors in _genpd_power_off()
  PM / Domains: Improve warn for multiple states but no governor
  OPP: Fix handling of multiple power domains
  PM / QoS: Fix typo in file description
  cpufreq: pxa2xx: remove incorrect __init annotation
  PM-runtime: Call pm_runtime_active|suspended_time() from sysfs
  PM-runtime: Consolidate code to get active/suspended time
  PM: Add and use pr_fmt()
  cpufreq: Improve kerneldoc comments for cpufreq_cpu_get/put()
  cpuidle: menu: Avoid overflows when computing variance
  tools/power/cpupower: Display boost frequency separately
2019-03-14 10:30:06 -07:00
Linus Torvalds 9bc4461003 Microblaze patches for 5.1-rc1
- Simplify debugfs initialization
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Merge tag 'microblaze-v5.1-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull Microblaze update from Michal Simek:
 "Simplify debugfs initialization"

* tag 'microblaze-v5.1-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: no need to check return value of debugfs_create functions
2019-03-14 10:27:47 -07:00
Jaegeuk Kim aff7b628ac f2fs: set pin_file under CAP_SYS_ADMIN
Android uses pin_file for uncrypt during OTA, and that should be managed by
CAP_SYS_ADMIN only.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-03-14 10:20:54 -07:00
Linus Torvalds f3ca4c55a6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "More fixes in the queue:

  1) Netfilter nat can erroneously register the device notifier twice,
     fix from Florian Westphal.

  2) Use after free in nf_tables, from Pablo Neira Ayuso.

  3) Parallel update of steering rule fix in mlx5 river, from Eli
     Britstein.

  4) RX processing panic in lan743x, fix from Bryan Whitehead.

  5) Use before initialization of TCP_SKB_CB, fix from Christoph Paasch.

  6) Fix locking in SRIOV mode of mlx4 driver, from Jack Morgenstein.

  7) Fix TX stalls in lan743x due to mishandling of interrupt ACKing
     modes, from Bryan Whitehead.

  8) Fix infoleak in l2tp_ip6_recvmsg(), from Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
  pptp: dst_release sk_dst_cache in pptp_sock_destruct
  MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list
  l2tp: fix infoleak in l2tp_ip6_recvmsg()
  net/tls: Inform user space about send buffer availability
  net_sched: return correct value for *notify* functions
  lan743x: Fix TX Stall Issue
  net/mlx4_core: Fix qp mtt size calculation
  net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling
  net/mlx4_core: Fix reset flow when in command polling mode
  mlxsw: minimal: Initialize base_mac
  mlxsw: core: Prevent duplication during QSFP module initialization
  net: dwmac-sun8i: fix a missing check of of_get_phy_mode
  net: sh_eth: fix a missing check of of_get_phy_mode
  net: 8390: fix potential NULL pointer dereferences
  net: fujitsu: fix a potential NULL pointer dereference
  net: qlogic: fix a potential NULL pointer dereference
  isdn: hfcpci: fix potential NULL pointer dereference
  Documentation: devicetree: add a new optional property for port mac address
  net: rocker: fix a potential NULL pointer dereference
  net: qlge: fix a potential NULL pointer dereference
  ...
2019-03-14 09:28:12 -07:00
Linus Torvalds 31ef489a02 dmaengine updates for v5.1-rc1
- dmatest updates for modularizing common struct and code
  - remove SG support for VDMA xilinx IP and updates to driver
  - Update to dw driver to support Intel iDMA controllers
    multi-block support
  - tegra updates for proper reporting of residue
  - Add Snow Ridge ioatdma device id and support for IOATDMA v3.4
  - struct_size() usage and useless LIST_HEAD cleanups in subsystem.
  - qDMA controller driver for Layerscape SoCs
  - stm32-dma PM Runtime support
  - And usual updates to imx-sdma, sprd, Documentation, fsl-edma,
    bcm2835, qcom_hidma etc
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Merge tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:

 - dmatest updates for modularizing common struct and code

 - remove SG support for VDMA xilinx IP and updates to driver

 - Update to dw driver to support Intel iDMA controllers multi-block
   support

 - tegra updates for proper reporting of residue

 - Add Snow Ridge ioatdma device id and support for IOATDMA v3.4

 - struct_size() usage and useless LIST_HEAD cleanups in subsystem.

 - qDMA controller driver for Layerscape SoCs

 - stm32-dma PM Runtime support

 - And usual updates to imx-sdma, sprd, Documentation, fsl-edma,
   bcm2835, qcom_hidma etc

* tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (81 commits)
  dmaengine: imx-sdma: fix consistent dma test failures
  dmaengine: imx-sdma: add a test for imx8mq multi sdma devices
  dmaengine: imx-sdma: add clock ratio 1:1 check
  dmaengine: dmatest: move test data alloc & free into functions
  dmaengine: dmatest: add short-hand `buf_size` var in dmatest_func()
  dmaengine: dmatest: wrap src & dst data into a struct
  dmaengine: ioatdma: support latency tolerance report (LTR) for v3.4
  dmaengine: ioatdma: add descriptor pre-fetch support for v3.4
  dmaengine: ioatdma: disable DCA enabling on IOATDMA v3.4
  dmaengine: ioatdma: Add Snow Ridge ioatdma device id
  dmaengine: sprd: Change channel id to slave id for DMA cell specifier
  dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier
  dmaengine: mv_xor: Use correct device for DMA API
  Documentation :dmaengine: clarify DMA desc. pointer after submission
  Documentation: dmaengine: fix dmatest.rst warning
  dmaengine: k3dma: Add support for dma-channel-mask
  dmaengine: k3dma: Delete axi_config
  dmaengine: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware
  Documentation: bindings: dma: Add binding for dma-channel-mask
  Documentation: bindings: k3dma: Extend the k3dma driver binding to support hisi-asp
  ...
2019-03-14 09:11:54 -07:00
Linus Torvalds 2f194646fe remoteproc updates for v5.1
This contains the last patches in Loic's remoteproc resource table
 handling changes, a number of updates to documentation, support for
 invoking the crash handler (for testing purposes), a fix for the
 handling of virtio devices during recovery, performance state votes in
 Qualcomm modem driver, support for specifying board specific firmware
 path for Qualcomm modem driver and improved support for graceful
 shutdown of Qualcomm remoteprocs.
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Merge tag 'rproc-v5.1' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This contains the last patches in Loic's remoteproc resource table
  handling changes, a number of updates to documentation, support for
  invoking the crash handler (for testing purposes), a fix for the
  handling of virtio devices during recovery, performance state votes in
  Qualcomm modem driver, support for specifying board specific firmware
  path for Qualcomm modem driver and improved support for graceful
  shutdown of Qualcomm remoteprocs"

* tag 'rproc-v5.1' of git://github.com/andersson/remoteproc: (33 commits)
  remoteproc: fix for "dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag"
  remoteproc: fix rproc_check_carveout_da() returned error and comments
  remoteproc: fix trace buffer va initialization
  remoteproc: fix rproc_alloc_carveout() for rproc with iommu domain
  remoteproc: add warning on resource table cast
  remoteproc: fix rproc_alloc_carveout() bad variable cast
  remoteproc: fix rproc_da_to_va in case of unallocated carveout
  remoteproc: correct rproc_mem_entry_init() comments
  remoteproc: fix recovery procedure
  rpmsg: virtio: change header file sort style
  rpmsg: virtio: allocate buffer from parent
  remoteproc: st: add reserved memory support
  remoteproc: create vdev subdevice with specific dma memory pool
  remoteproc: q6v5_adsp: Remove voting for lpass_aon clock
  dt-binding: remoteproc: Remove lpass_aon clock from adsp pil clock list
  remoteproc: q6v5-mss: Active powerdomain for SDM845
  remoteproc: q6v5-mss: Vote for rpmh power domains
  remoteproc: qcom: Add support for parsing fw dt bindings
  remoteproc: qcom_q6v5: don't auto boot remote processor
  remoteproc: qcom: Wait for shutdown-ack/ind on sysmon shutdown
  ...
2019-03-14 09:00:06 -07:00
Linus Torvalds dc2535be1f We have a fairly balanced mix of clk driver updates and clk framework
updates this time around. It's the usual pile of new drivers for new
 hardware out there and the normal small fixes and updates, but then we
 have some core framework changes too.
 
 In the core framework, we introduce support for a clk_get_optional() API
 to get clks that may not always be populated and a way to devm manage clkdev
 lookups registered by provider drivers. We also do some refactoring to simplify
 the interface between clkdev and the common clk framework so we can reuse the DT
 parsing and clk_get() path in provider drivers in the future. This work will
 continue in the next few cycles while we convert how providers specify clk
 parents.
 
 On the driver side, the biggest part of the dirstat is the Amlogic clk driver
 that got support for the G12A SoC. It dominates with almost half the overall
 diff, while the second largest part of the diff is in the i.MX clk driver
 that gained support for imx8mm SoCs. After that, we have the Actions Semiconductor
 and Qualcomm drivers rounding out the big part of the dirstat because they both
 got new hardware support for SoCs. The rest is just various updates and non-critical
 fixes for existing drivers.
 
 Core:
  - Convert a few clk bindings to JSON schema format
  - Add a {devm_}clk_get_optional() API
  - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups
  - Start rewriting clk parent registration and supporting device links
    by moving around code that supports clk_get() and DT parsing of the
    'clocks' property
 
 New Drivers:
  - Add Qualcomm MSM8998 RPM managed clks
  - IPA clk support on Qualcomm RPMh clk controllers
  - Actions Semi S500 SoC clk support
  - Support for fixed rate clks populated from an MMIO register
  - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car V3H
  - Add TMU (timer) clocks on Renesas RZ/G2E
  - Add Amlogic G12A Always-On Clock Controller
  - Add 32k clock generation for Amlogic AXG
  - Add support for the Mali GPU clocks on Amlogic Meson8
  - Add Amlogic G12A EE clock controller driver
  - Add missing CANFD clocks on Renesas RZ/G2M and RZ/G2E
  - Add i.MX8MM SoC clk driver support
 
 Removed Drivers:
  - Remove clps711x driver as the board support is gone
 
 Updates:
  - 3rd ECO fix for Mediatek MT2712 SoCs
  - Updates for Qualcomm MSM8998 GCC clks
  - Random static analysis fixes for clk drivers
  - Support for sleeping gpios in the clk-gpio type
  - Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
  - Split LCDC into two clks on the Marvell MMP2 SoC
  - Various DT of_node refcount fixes
  - Get rid of CLK_IS_BASIC from TI code (yay!)
  - TI Autoidle clk support
  - Fix Amlogic Meson8 APB clock ID name
  - Claim input clocks through DT for Amlogic AXG and GXBB
  - Correct the DU (display unit) parent clock on Renesas RZ/G2E
  - Exynos5433 IMEM CMU crypto clk support (SlimSS)
  - Fix for the PLL-MIPI on the Allwinner A23
  - Fix Rockchip rk3328 PLL rate calculation
  - Add SET_RATE_PARENT flag on display clk of Rockhip rk3066
  - i.MX SCU clk driver clk_set_parent() and cpufreq support
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk subsystem updates from Stephen Boyd:
 "We have a fairly balanced mix of clk driver updates and clk framework
  updates this time around. It's the usual pile of new drivers for new
  hardware out there and the normal small fixes and updates, but then we
  have some core framework changes too.

  In the core framework, we introduce support for a clk_get_optional()
  API to get clks that may not always be populated and a way to devm
  manage clkdev lookups registered by provider drivers. We also do some
  refactoring to simplify the interface between clkdev and the common
  clk framework so we can reuse the DT parsing and clk_get() path in
  provider drivers in the future. This work will continue in the next
  few cycles while we convert how providers specify clk parents.

  On the driver side, the biggest part of the dirstat is the Amlogic clk
  driver that got support for the G12A SoC. It dominates with almost
  half the overall diff, while the second largest part of the diff is in
  the i.MX clk driver that gained support for imx8mm SoCs. After that,
  we have the Actions Semiconductor and Qualcomm drivers rounding out
  the big part of the dirstat because they both got new hardware support
  for SoCs. The rest is just various updates and non-critical fixes for
  existing drivers.

  Core:
   - Convert a few clk bindings to JSON schema format
   - Add a {devm_}clk_get_optional() API
   - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups
   - Start rewriting clk parent registration and supporting device links
     by moving around code that supports clk_get() and DT parsing of the
     'clocks' property

  New Drivers:
   - Add Qualcomm MSM8998 RPM managed clks
   - IPA clk support on Qualcomm RPMh clk controllers
   - Actions Semi S500 SoC clk support
   - Support for fixed rate clks populated from an MMIO register
   - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car V3H
   - Add TMU (timer) clocks on Renesas RZ/G2E
   - Add Amlogic G12A Always-On Clock Controller
   - Add 32k clock generation for Amlogic AXG
   - Add support for the Mali GPU clocks on Amlogic Meson8
   - Add Amlogic G12A EE clock controller driver
   - Add missing CANFD clocks on Renesas RZ/G2M and RZ/G2E
   - Add i.MX8MM SoC clk driver support

  Removed Drivers:
   - Remove clps711x driver as the board support is gone

  Updates:
   - 3rd ECO fix for Mediatek MT2712 SoCs
   - Updates for Qualcomm MSM8998 GCC clks
   - Random static analysis fixes for clk drivers
   - Support for sleeping gpios in the clk-gpio type
   - Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
   - Split LCDC into two clks on the Marvell MMP2 SoC
   - Various DT of_node refcount fixes
   - Get rid of CLK_IS_BASIC from TI code (yay!)
   - TI Autoidle clk support
   - Fix Amlogic Meson8 APB clock ID name
   - Claim input clocks through DT for Amlogic AXG and GXBB
   - Correct the DU (display unit) parent clock on Renesas RZ/G2E
   - Exynos5433 IMEM CMU crypto clk support (SlimSS)
   - Fix for the PLL-MIPI on the Allwinner A23
   - Fix Rockchip rk3328 PLL rate calculation
   - Add SET_RATE_PARENT flag on display clk of Rockhip rk3066
   - i.MX SCU clk driver clk_set_parent() and cpufreq support"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (150 commits)
  dt-bindings: clock: imx8mq: Fix numbering overlaps and gaps
  clk: ti: clkctrl: Fix clkdm_name regression for TI_CLK_CLKCTRL_COMPAT
  clk: fixup default index for of_clk_get_by_name()
  clk: Move of_clk_*() APIs into clk.c from clkdev.c
  clk: Inform the core about consumer devices
  clk: Introduce of_clk_get_hw_from_clkspec()
  clk: core: clarify the check for runtime PM
  clk: Combine __clk_get() and __clk_create_clk()
  clk: imx8mq: add GPIO clocks to clock tree
  clk: mediatek: correct cpu clock name for MT8173 SoC
  clk: imx: Refactor entire sccg pll clk
  clk: imx: scu: add cpu frequency scaling support
  clk: mediatek: Mark bus and DRAM related clocks as critical
  clk: mediatek: Add flags to mtk_gate
  clk: mediatek: Add MUX_FLAGS macro
  clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks
  clk: ingenic: Remove set but not used variable 'enable'
  clk: at91: programmable: remove unneeded register read
  clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
  clk: mediatek: add MUX_GATE_FLAGS_2
  ...
2019-03-14 08:46:17 -07:00
Sagar Biradar 0015437cc0 scsi: aacraid: Fix performance issue on logical drives
Fix performance issue where the queue depth for SmartIOC logical volumes is
set to 1, and allow the usual logical volume code to be executed

Fixes: a052865fe2 (aacraid: Set correct Queue Depth for HBA1000 RAW disks)
Cc: stable@vger.kernel.org
Signed-off-by: Sagar Biradar <Sagar.Biradar@microchip.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-14 07:16:36 -04:00
Dan Carpenter 3a487ff78c scsi: lpfc: Fix error codes in lpfc_sli4_pci_mem_setup()
It used to be that "error" was set to -ENODEV at the start of the function
but we shifted some code around an now "error" is set to zero for most
error paths.  There is a mix of direct returns and "goto out" but I changed
everything to direct returns for consistency.

Fixes: 56de835704 ("scsi: lpfc: fix calls to dma_set_mask_and_coherent()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: James Smart  <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-14 07:01:36 -04:00
Rafael J. Wysocki b6e88119f1 Merge branches 'acpi-tables', 'acpi-debug', 'acpi-doc' and 'acpi-misc'
* acpi-tables:
  ACPI: tables: Simplify PPTT leaf node detection

* acpi-debug:
  ACPI: sysfs: Prevent get_status() from returning acpi_status

* acpi-doc:
  ACPI: Documentation: Fix path for acpidbg tool

* acpi-misc:
  ACPI / configfs: Mark local data structures static
  ACPI / configfs: Mark local functions static
2019-03-14 10:54:28 +01:00
Rafael J. Wysocki b444e1aa3e Merge branches 'pm-opp' and 'pm-tools'
* pm-opp:
  PM / OPP: Update performance state when freq == old_freq
  OPP: Fix handling of multiple power domains

* pm-tools:
  tools/power/cpupower: Display boost frequency separately
2019-03-14 10:53:22 +01:00
Rafael J. Wysocki 75f3e23954 Merge branch 'pm-domains'
* pm-domains:
  PM / domains: Remove one unnecessary blank line
  PM / Domains: Return early for all errors in _genpd_power_off()
  PM / Domains: Improve warn for multiple states but no governor
2019-03-14 10:53:08 +01:00
Rafael J. Wysocki 4650b27929 Merge branches 'pm-cpuidle' and 'pm-cpufreq'
* pm-cpuidle:
  cpuidle: governor: Add new governors to cpuidle_governors again
  cpuidle: menu: Avoid overflows when computing variance

* pm-cpufreq:
  cpufreq: intel_pstate: Fix up iowait_boost computation
  cpufreq: pxa2xx: remove incorrect __init annotation
  cpufreq: Improve kerneldoc comments for cpufreq_cpu_get/put()
2019-03-14 10:51:51 +01:00
Rafael J. Wysocki e6035258db Merge branches 'pm-core', 'pm-sleep' and 'pm-qos'
* pm-core:
  PM-runtime: Call pm_runtime_active|suspended_time() from sysfs
  PM-runtime: Consolidate code to get active/suspended time

* pm-sleep:
  PM / wakeup: Drop wakeup_source_drop()
  PM / wakeup: Rework wakeup source timer cancellation

* pm-qos:
  PM / QoS: Fix typo in file description
2019-03-14 10:51:38 +01:00
Kailang Yang da484d00f0 ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB
Enable headset mode support for new WYSE NB platform.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-14 10:31:02 +01:00
Kailang Yang 136824efaa ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO
This patch will enable WYSE AIO for Headset mode.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-14 10:29:22 +01:00
Jaroslav Kysela c8a9afa632 ALSA: hda/realtek: merge alc_fixup_headset_jack to alc295_fixup_chromebook
The ALC225_FIXUP_HEADSET_JACK fixup can be merged to alc295_fixup_chromebook.
There are no other users for ALC225_FIXUP_HEADSET_JACK other than
the chromebook hardware.

Fixes: 10f5b1b85e ("ALSA: hda/realtek - Fixed Headset Mic JD not stable")
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-14 10:25:53 +01:00
Dave Airlie 0f1d37e65a Merge branch 'drm-next-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-next
- Update golden regs for gfx9
- Powerplay fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190313194249.3346-1-alexander.deucher@amd.com
2019-03-14 12:15:02 +10:00
Dave Airlie ad7ad48e09 - HDCP state handling in ddi_update_pipe
- Protect i915_active iterators from the shrinker
 - Reacquire priolist cache after dropping the engine lock
 - (Selftest) Always free spinner on __sseu_prepare error
 - Acquire breadcrumb ref before canceling
 - Fix atomic state leak on HDMI link reset
 - Relax mmap VMA check
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Merge tag 'drm-intel-next-fixes-2019-03-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- HDCP state handling in ddi_update_pipe
- Protect i915_active iterators from the shrinker
- Reacquire priolist cache after dropping the engine lock
- (Selftest) Always free spinner on __sseu_prepare error
- Acquire breadcrumb ref before canceling
- Fix atomic state leak on HDMI link reset
- Relax mmap VMA check

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312205551.GA7701@intel.com
2019-03-14 11:57:11 +10:00
Dave Airlie 74cd45fa90 - qxl: Remove the conflicting framebuffers earlier
- Split out some i915 code into the fb_helper to allow the above
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Merge tag 'drm-misc-next-fixes-2019-03-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

 - qxl: Remove the conflicting framebuffers earlier
 - Split out some i915 code into the fb_helper to allow the above

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190313192158.k3qssf733khsqodn@flea
2019-03-14 11:37:46 +10:00
Xin Long 9417d81f4f pptp: dst_release sk_dst_cache in pptp_sock_destruct
sk_setup_caps() is called to set sk->sk_dst_cache in pptp_connect,
so we have to dst_release(sk->sk_dst_cache) in pptp_sock_destruct,
otherwise, the dst refcnt will leak.

It can be reproduced by this syz log:

  r1 = socket$pptp(0x18, 0x1, 0x2)
  bind$pptp(r1, &(0x7f0000000100)={0x18, 0x2, {0x0, @local}}, 0x1e)
  connect$pptp(r1, &(0x7f0000000000)={0x18, 0x2, {0x3, @remote}}, 0x1e)

Consecutive dmesg warnings will occur:

  unregister_netdevice: waiting for lo to become free. Usage count = 1

v1->v2:
  - use rcu_dereference_protected() instead of rcu_dereference_check(),
    as suggested by Eric.

Fixes: 00959ade36 ("PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-13 14:22:49 -07:00
Florian Fainelli 63b6c974c2 MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list
There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions, add this list for the Broadcom GENET and
SYSTEMPORT drivers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-13 14:21:07 -07:00
Eric Dumazet 163d1c3d6f l2tp: fix infoleak in l2tp_ip6_recvmsg()
Back in 2013 Hannes took care of most of such leaks in commit
bceaa90240 ("inet: prevent leakage of uninitialized memory to user in recv syscalls")

But the bug in l2tp_ip6_recvmsg() has not been fixed.

syzbot report :

BUG: KMSAN: kernel-infoleak in _copy_to_user+0x16b/0x1f0 lib/usercopy.c:32
CPU: 1 PID: 10996 Comm: syz-executor362 Not tainted 5.0.0+ #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x173/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x12e/0x2a0 mm/kmsan/kmsan.c:600
 kmsan_internal_check_memory+0x9f4/0xb10 mm/kmsan/kmsan.c:694
 kmsan_copy_to_user+0xab/0xc0 mm/kmsan/kmsan_hooks.c:601
 _copy_to_user+0x16b/0x1f0 lib/usercopy.c:32
 copy_to_user include/linux/uaccess.h:174 [inline]
 move_addr_to_user+0x311/0x570 net/socket.c:227
 ___sys_recvmsg+0xb65/0x1310 net/socket.c:2283
 do_recvmmsg+0x646/0x10c0 net/socket.c:2390
 __sys_recvmmsg net/socket.c:2469 [inline]
 __do_sys_recvmmsg net/socket.c:2492 [inline]
 __se_sys_recvmmsg+0x1d1/0x350 net/socket.c:2485
 __x64_sys_recvmmsg+0x62/0x80 net/socket.c:2485
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x445819
Code: e8 6c b6 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f64453eddb8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 0000000000445819
RDX: 0000000000000005 RSI: 0000000020002f80 RDI: 0000000000000003
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac2c
R13: 00007ffeba8f87af R14: 00007f64453ee9c0 R15: 20c49ba5e353f7cf

Local variable description: ----addr@___sys_recvmsg
Variable was created at:
 ___sys_recvmsg+0xf6/0x1310 net/socket.c:2244
 do_recvmmsg+0x646/0x10c0 net/socket.c:2390

Bytes 0-31 of 32 are uninitialized
Memory access of size 32 starts at ffff8880ae62fbb0
Data copied to user address 0000000020000000

Fixes: a32e0eec70 ("l2tp: introduce L2TPv3 IP encapsulation support for IPv6")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-13 14:19:35 -07:00
Vakul Garg 4504ab0e6e net/tls: Inform user space about send buffer availability
A previous fix ("tls: Fix write space handling") assumed that
user space application gets informed about the socket send buffer
availability when tls_push_sg() gets called. Inside tls_push_sg(), in
case do_tcp_sendpages() returns 0, the function returns without calling
ctx->sk_write_space. Further, the new function tls_sw_write_space()
did not invoke ctx->sk_write_space. This leads to situation that user
space application encounters a lockup always waiting for socket send
buffer to become available.

Rather than call ctx->sk_write_space from tls_push_sg(), it should be
called from tls_write_space. So whenever tcp stack invokes
sk->sk_write_space after freeing socket send buffer, we always declare
the same to user space by the way of invoking ctx->sk_write_space.

Fixes: 7463d3a2db ("tls: Fix write space handling")
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-13 14:16:44 -07:00
Zhike Wang 5b5f99b186 net_sched: return correct value for *notify* functions
It is confusing to directly use return value of netlink_send()/
netlink_unicast() as the return value of *notify*, as it may be not
error at all.

Example: in tc_del_tfilter(), after calling tfilter_del_notify(), it will
goto errout if (err). However, the netlink_send()/netlink_unicast() will
return positive value even for successful case. So it may not call
tcf_chain_tp_remove() and so on to clean up the resource, as a result,
resource is leaked.

It may be easier to only check the return value of tfilter_del_nofiy(),
but it is more clean to correct all related functions.

Co-developed-by: Zengmo Gao <gaozengmo@jd.com>
Signed-off-by: Zhike Wang <wangzhike@jd.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-13 13:48:27 -07:00