Commit Graph

996532 Commits

Author SHA1 Message Date
Daniele Palmas
b4b91e2409 net: qmi_wwan: document qmap/mux_id sysfs file
Document qmap/mux_id sysfs file showing qmimux interface id

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 18:00:18 -08:00
Daniele Palmas
e594ad980e net: usb: qmi_wwan: add qmap id sysfs file for qmimux interfaces
Add qmimux interface sysfs file qmap/mux_id to show qmap id set
during the interface creation, in order to provide a method for
userspace to associate QMI control channels to network interfaces.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 18:00:02 -08:00
Tom Rix
d7a177ea8f ipvlan: remove h from printk format specifier
This change fixes the checkpatch warning described in this commit
commit cbacb5ab0a ("docs: printk-formats: Stop encouraging use of
  unnecessary %h[xudi] and %hh[xudi]")

Standard integer promotion is already done and %hx and %hhx is useless
so do not encourage the use of %hh[xudi] or %h[xudi].

Cleanup output to use __func__ over explicit function strings.

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210124190804.1964580-1-trix@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 17:47:33 -08:00
Dave Airlie
e0ecafede8 Merge tag 'amd-drm-fixes-5.11-2021-01-28' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.11-2021-01-28:

amdgpu:
- Fix a fan control regression on some boards
- Fix clang warning

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210128191558.3821-1-alexander.deucher@amd.com
2021-01-29 11:36:38 +10:00
Dave Airlie
9a1054c32a Merge tag 'drm-intel-fixes-2021-01-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.11-rc6:
- Fix ICL MG PHY vswing
- Fix subplatform handling
- Fix selftest memleak
- Clear CACHE_MODE prior to clearing residuals
- Always flush the active worker before returning from the wait
- Always try to reserve GGTT address 0x0

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87y2gdi3mp.fsf@intel.com
2021-01-29 11:33:37 +10:00
Dave Airlie
fb62b7b986 Short summary of fixes pull (less than what git shortlog provides):
* drm/vc4: Fix LBM size calculation; Fix high resolutions for hvs5
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Merge tag 'drm-misc-fixes-2021-01-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull (less than what git shortlog provides):

 * drm/vc4: Fix LBM size calculation; Fix high resolutions for hvs5

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YBEco1Vxeny8U/ca@linux-uq9g
2021-01-29 11:32:49 +10:00
Dave Airlie
87bff75800 Merge branch '04.01-ampere-lite' of git://github.com/skeggsb/linux into drm-fixes
Mostly a regression fixes here, a couple of which could lead to
display hanging, and have been affecting a number of users.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv4Y0ZiAevSvgphLAOaZjFi75ECXqUD9ShBvRxZ6S-pb9Q@mail.gmail.com
2021-01-29 11:31:55 +10:00
Tobias Klauser
61ca36c8c4 bpf: Simplify cases in bpf_base_func_proto
!perfmon_capable() is checked before the last switch(func_id) in
bpf_base_func_proto. Thus, the cases BPF_FUNC_trace_printk and
BPF_FUNC_snprintf_btf can be moved to that last switch(func_id) to omit
the inline !perfmon_capable() checks.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127174615.3038-1-tklauser@distanz.ch
2021-01-29 02:20:28 +01:00
Jakub Kicinski
c358f95205 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/can/dev.c
  b552766c87 ("can: dev: prevent potential information leak in can_fill_info()")
  3e77f70e73 ("can: dev: move driver related infrastructure into separate subdir")
  0a042c6ec9 ("can: dev: move netlink related code into seperate file")

  Code move.

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
  57ac4a31c4 ("net/mlx5e: Correctly handle changing the number of queues when the interface is down")
  214baf2287 ("net/mlx5e: Support HTB offload")

  Adjacent code changes

net/switchdev/switchdev.c
  20776b465c ("net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP")
  ffb68fc58e ("net: switchdev: remove the transaction structure from port object notifiers")
  bae33f2b5a ("net: switchdev: remove the transaction structure from port attributes")

  Transaction parameter gets dropped otherwise keep the fix.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 17:09:31 -08:00
Stanislav Fomichev
4c3384d7ab bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket.

Note that we could remove the switch for prog->expected_attach_type altogether
since all current sock_addr attach types are covered. However, it makes sense
to keep it as a safe-guard in case new sock_addr attach types are added that
might not operate on a locked socket. Therefore, avoid to let this slip through.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-5-sdf@google.com
2021-01-29 02:09:31 +01:00
Stanislav Fomichev
3574906016 selftests/bpf: Rewrite recvmsg{4,6} asm progs to c in test_sock_addr
I'll extend them in the next patch. It's easier to work with C
than with asm.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-4-sdf@google.com
2021-01-29 02:09:05 +01:00
Stanislav Fomichev
073f4ec124 bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_INET{4,6}_GET{PEER,SOCK}NAME
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on
a locked socket.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-3-sdf@google.com
2021-01-29 02:09:05 +01:00
Stanislav Fomichev
62476cc1bf bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_SENDMSG
Can be used to query/modify socket state for unconnected UDP sendmsg.
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on
a locked socket.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-2-sdf@google.com
2021-01-29 02:09:05 +01:00
Lyude Paul
ba839b7598 drm/nouveau/kms/gk104-gp1xx: Fix > 64x64 cursors
While we do handle the additional cursor sizes introduced in NVE4, it looks
like we accidentally broke this when converting over to use Nvidia's
display headers. Since we now use NVVAL in dispnv50/head907d.c in order to
format the value for the cursor layout and NVD9 only had one byte reserved
vs. the 2 bytes reserved in later generations, we end up accidentally
stripping the second bit in the cursor layout format parameter - causing us
to set the wrong cursor size.

This fixes that by adding our own curs_set hook for 917d which uses the
NV917D headers.

Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: <stable@vger.kernel.org> # v5.9+
Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: ed0b86a90b ("drm/nouveau/kms/nv50-: use NVIDIA's headers for core head_curs_set()")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-01-29 11:03:11 +10:00
Lyude Paul
d3b2f0f792 drm/nouveau/kms/nv50-: Report max cursor size to userspace
Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-01-29 11:03:11 +10:00
Lyude Paul
7c6d659868 drivers/nouveau/kms/nv50-: Reject format modifiers for cursor planes
Nvidia hardware doesn't actually support using tiling formats with the
cursor plane, only linear is allowed. In the future, we should write a
testcase for this.

Fixes: c586f30bf7 ("drm/nouveau/kms: Add format mod prop to base/ovly/nvdisp")
Cc: James Jones <jajones@nvidia.com>
Cc: Martin Peres <martin.peres@free.fr>
Cc: Jeremy Cline <jcline@redhat.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: James Jones <jajones@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-01-29 11:03:11 +10:00
Karol Herbst
dcd602cc5f drm/nouveau/svm: fail NOUVEAU_SVM_INIT ioctl on unsupported devices
Fixes a crash when trying to create a channel on e.g. Turing GPUs when
NOUVEAU_SVM_INIT was called before.

Fixes: eeaf06ac1a ("drm/nouveau/svm: initial support for shared virtual memory")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-01-29 11:03:11 +10:00
Bastian Beranek
fd55b61ebd drm/nouveau/dispnv50: Restore pushing of all data.
Commit f844eb485e introduced a regression for
NV50, which lead to visual artifacts, tearing and eventual crashes.

In the changes of f844eb485e only the first line
was correctly translated to the new NVIDIA header macros:

-		PUSH_NVSQ(push, NV827C, 0x0110, 0,
-					0x0114, 0);
+		PUSH_MTHD(push, NV827C, SET_PROCESSING,
+			  NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));

The lower part ("0x0114, 0") was probably omitted by accident.

This patch restores the push of the missing data and fixes the regression.

Signed-off-by: Bastian Beranek <bastian.beischer@rwth-aachen.de>
Fixes: f844eb485e ("drm/nouveau/kms/nv50-: use NVIDIA's headers for wndw image_set()")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/14
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-01-29 11:02:14 +10:00
Jakub Kicinski
24a790da0a mlx5 subfunction support
Parav Pandit Says:
 =================
 
 This patchset introduces support for mlx5 subfunction (SF).
 
 A subfunction is a lightweight function that has a parent PCI function on
 which it is deployed. mlx5 subfunction has its own function capabilities
 and its own resources. This means a subfunction has its own dedicated
 queues(txq, rxq, cq, eq). These queues are neither shared nor stolen from
 the parent PCI function.
 
 When subfunction is RDMA capable, it has its own QP1, GID table and rdma
 resources neither shared nor stolen from the parent PCI function.
 
 A subfunction has dedicated window in PCI BAR space that is not shared
 with the other subfunctions or parent PCI function. This ensures that all
 class devices of the subfunction accesses only assigned PCI BAR space.
 
 A Subfunction supports eswitch representation through which it supports tc
 offloads. User must configure eswitch to send/receive packets from/to
 subfunction port.
 
 Subfunctions share PCI level resources such as PCI MSI-X IRQs with
 their other subfunctions and/or with its parent PCI function.
 
 Patch summary:
 --------------
 Patch 1 to 4 prepares devlink
 patch 5 to 7 mlx5 adds SF device support
 Patch 8 to 11 mlx5 adds SF devlink port support
 Patch 12 and 14 adds documentation
 
 Patch-1 prepares code to handle multiple port function attributes
 Patch-2 introduces devlink pcisf port flavour similar to pcipf and pcivf
 Patch-3 adds port add and delete driver callbacks
 Patch-4 adds port function state get and set callbacks
 Patch-5 mlx5 vhca event notifier support to distribute subfunction
         state change notification
 Patch-6 adds SF auxiliary device
 Patch-7 adds SF auxiliary driver
 Patch-8 prepares eswitch to handler SF vport
 Patch-9 adds eswitch helpers to add/remove SF vport
 Patch-10 implements devlink port add/del callbacks
 Patch-11 implements devlink port function get/set callbacks
 Patch-12 to 14 adds documentation
 Patch-12 added mlx5 port function documentation
 Patch-13 adds subfunction documentation
 Patch-14 adds mlx5 subfunction documentation
 
 Subfunction support is discussed in detail in RFC [1] and [2].
 RFC [1] and extension [2] describes requirements, design and proposed
 plumbing using devlink, auxiliary bus and sysfs for systemd/udev
 support. Functionality of this patchset is best explained using real
 examples further below.
 
 overview:
 --------
 A subfunction can be created and deleted by a user using devlink port
 add/delete interface.
 
 A subfunction can be configured using devlink port function attribute
 before its activated.
 
 When a subfunction is activated, it results in an auxiliary device on
 the host PCI device where it is deployed. A driver binds to the
 auxiliary device that further creates supported class devices.
 
 example subfunction usage sequence:
 -----------------------------------
 Change device to switchdev mode:
 $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
 
 Add a devlink port of subfunction flavour:
 $ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
 
 Configure mac address of the port function:
 $ devlink port function set ens2f0npf0sf88 hw_addr 00:00:00:00:88:88
 
 Now activate the function:
 $ devlink port function set ens2f0npf0sf88 state active
 
 Now use the auxiliary device and class devices:
 $ devlink dev show
 pci/0000:06:00.0
 auxiliary/mlx5_core.sf.4
 
 $ ip link show
 127: ens2f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
     link/ether 24:8a:07:b3:d1:12 brd ff:ff:ff:ff:ff:ff
     altname enp6s0f0np0
 129: p0sf88: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
     link/ether 00:00:00:00:88:88 brd ff:ff:ff:ff:ff:ff
 
 $ rdma dev show
 43: rdmap6s0f0: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d112 sys_image_guid 248a:0703:00b3:d112
 44: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112
 
 After use inactivate the function:
 $ devlink port function set ens2f0npf0sf88 state inactive
 
 Now delete the subfunction port:
 $ devlink port del ens2f0npf0sf88
 
 [1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/
 [2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2
 
 =================
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Merge tag 'mlx5-updates-2021-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5 subfunction support

Parav Pandit says:

This patchset introduces support for mlx5 subfunction (SF).

A subfunction is a lightweight function that has a parent PCI function on
which it is deployed. mlx5 subfunction has its own function capabilities
and its own resources. This means a subfunction has its own dedicated
queues(txq, rxq, cq, eq). These queues are neither shared nor stolen from
the parent PCI function.

When subfunction is RDMA capable, it has its own QP1, GID table and rdma
resources neither shared nor stolen from the parent PCI function.

A subfunction has dedicated window in PCI BAR space that is not shared
with the other subfunctions or parent PCI function. This ensures that all
class devices of the subfunction accesses only assigned PCI BAR space.

A Subfunction supports eswitch representation through which it supports tc
offloads. User must configure eswitch to send/receive packets from/to
subfunction port.

Subfunctions share PCI level resources such as PCI MSI-X IRQs with
their other subfunctions and/or with its parent PCI function.

Subfunction support is discussed in detail in RFC [1] and [2].
RFC [1] and extension [2] describes requirements, design and proposed
plumbing using devlink, auxiliary bus and sysfs for systemd/udev
support. Functionality of this patchset is best explained using real
examples further below.

overview:
--------
A subfunction can be created and deleted by a user using devlink port
add/delete interface.

A subfunction can be configured using devlink port function attribute
before its activated.

When a subfunction is activated, it results in an auxiliary device on
the host PCI device where it is deployed. A driver binds to the
auxiliary device that further creates supported class devices.

example subfunction usage sequence:
-----------------------------------
Change device to switchdev mode:
$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev

Add a devlink port of subfunction flavour:
$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88

Configure mac address of the port function:
$ devlink port function set ens2f0npf0sf88 hw_addr 00:00:00:00:88:88

Now activate the function:
$ devlink port function set ens2f0npf0sf88 state active

Now use the auxiliary device and class devices:
$ devlink dev show
pci/0000:06:00.0
auxiliary/mlx5_core.sf.4

$ ip link show
127: ens2f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 24:8a:07:b3:d1:12 brd ff:ff:ff:ff:ff:ff
    altname enp6s0f0np0
129: p0sf88: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:88:88 brd ff:ff:ff:ff:ff:ff

$ rdma dev show
43: rdmap6s0f0: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d112 sys_image_guid 248a:0703:00b3:d112
44: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112

After use inactivate the function:
$ devlink port function set ens2f0npf0sf88 state inactive

Now delete the subfunction port:
$ devlink port del ens2f0npf0sf88

[1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/
[2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2

=================

* tag 'mlx5-updates-2021-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Add devlink subfunction port documentation
  devlink: Extend devlink port documentation for subfunctions
  devlink: Add devlink port documentation
  net/mlx5: SF, Port function state change support
  net/mlx5: SF, Add port add delete functionality
  net/mlx5: E-switch, Add eswitch helpers for SF vport
  net/mlx5: E-switch, Prepare eswitch to handle SF vport
  net/mlx5: SF, Add auxiliary device driver
  net/mlx5: SF, Add auxiliary device support
  net/mlx5: Introduce vhca state event notifier
  devlink: Support get and set state of port function
  devlink: Support add and delete devlink port
  devlink: Introduce PCI SF port flavour and port attribute
  devlink: Prepare code to fill multiple port function attributes
====================

Link: https://lore.kernel.org/r/20210122193658.282884-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 16:57:19 -08:00
Sedat Dilek
211a741cd3 tools: Factor Clang, LLC and LLVM utils definitions
When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool.

While looking into the source code I found duplicate assignments in misc tools
for the LLVM eco system, e.g. clang and llvm-objcopy.

Move the Clang, LLC and/or LLVM utils definitions to tools/scripts/Makefile.include
file and add missing includes where needed. Honestly, I was inspired by the commit
c8a950d0d3 ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions").

I tested with bpftool and perf on Debian/testing AMD64 and LLVM/Clang v11.1.0-rc1.

Build instructions:

[ make and make-options ]
MAKE="make V=1"
MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1"
MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole"

[ clean-up ]
$MAKE $MAKE_OPTS -C tools/ clean

[ bpftool ]
$MAKE $MAKE_OPTS -C tools/bpf/bpftool/

[ perf ]
PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/

I was careful with respecting the user's wish to override custom compiler, linker,
GNU/binutils and/or LLVM utils settings.

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf
Link: https://lore.kernel.org/bpf/20210128015117.20515-1-sedat.dilek@gmail.com
2021-01-29 01:25:34 +01:00
Pavel Begunkov
3a7efd1ad2 io_uring: reinforce cancel on flush during exit
What 84965ff8a8 ("io_uring: if we see flush on exit, cancel related tasks")
really wants is to cancel all relevant REQ_F_INFLIGHT requests reliably.
That can be achieved by io_uring_cancel_files(), but we'll miss it
calling io_uring_cancel_task_requests(files=NULL) from io_uring_flush(),
because it will go through __io_uring_cancel_task_requests().

Just always call io_uring_cancel_files() during cancel, it's good enough
for now.

Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-01-28 17:04:24 -07:00
Peter Hutterer
20ccc8dd38 Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams
ABS_PRESSURE and ABS_MT_PRESSURE on touch devices usually represent
contact size (as a finger flattens with higher pressure the contact size
increases) and userspace translates the kernel pressure value back into
contact size. For example, libinput has pressure thresholds when a touch is
considered a palm (palm == large contact area -> high pressure). The values
themselves are on an arbitrary scale and device-specific.

On pressurepads however, the pressure axis may represent the real physical
pressure. Pressurepads are touchpads without a hinge but an actual pressure
sensor underneath the device instead, for example the Lenovo Yoga 9i.

A high-enough pressure is converted to a button click by the firmware.
Microsoft does not require a pressure axis to be present, see [1], so as seen
from userspace most pressurepads are identical to clickpads - one button and
INPUT_PROP_BUTTONPAD set.

However, pressurepads that export the pressure axis break userspace because
that axis no longer represents contact size, resulting in inconsistent touch
tracking, e.g. [2]. Userspace needs to know when a pressure axis represents
real pressure and the best way to do so is to define what the resolution
field means. Userspace can then treat data with a pressure resolution as
true pressure.

This patch documents that the pressure resolution is in units/gram. This
allows for fine-grained detail and tops out at roughly ~2000t, enough for the
devices we're dealing with. Grams is not a scientific pressure unit but the
alternative is:
- Pascal: defined as force per area and area is unreliable on many devices and
  seems like the wrong option here anyway, especially for devices with a
  single pressure sensor only.
- Newton: defined as mass * distance/acceleration and for the purposes of a
  pressure axis, the distance is tricky to interpret and we get the data to
  calculate acceleration from event timestamps anyway.

For the purposes of touch devices and digitizers, grams seems the best choice
and the easiest to interpret.

Bonus side effect: we can use the existing hwdb infrastructure in userspace to
fix devices that advertise false pressure.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-precision-touchpad-required-hid-top-level-collections#windows-precision-touchpad-input-reports
[2] https://gitlab.freedesktop.org/libinput/libinput/-/issues/562

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20210112230310.GA149342@jelly
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 16:43:04 -07:00
Michal Wajdeczko
06a755d626 scripts/kernel-doc: add internal hyperlink to DOC: sections
While DOC: section titles are not converted into RST headings
sections and are only decorated with strong emphasis markup,
nothing stops us from generating internal hyperlinks for them,
to mimic implicit hyperlinks to RST headings.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://lore.kernel.org/r/20210118110813.1490-1-michal.wajdeczko@intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 16:35:00 -07:00
Linus Torvalds
909b447dcc Networking fixes for 5.11-rc6, including fixes from can, xfrm, wireless,
wireless-drivers and netfilter trees. Nothing scary, Intel WiFi-related
 fixes seemed most notable to the users.
 
 Current release - regressions:
 
  - dsa: microchip: ksz8795: fix KSZ8794 port map again to program
                             the CPU port correctly
 
 Current release - new code bugs:
 
  - iwlwifi: pcie: reschedule in long-running memory reads
 
 Previous releases - regressions:
 
  - iwlwifi: dbg: don't try to overwrite read-only FW data
 
  - iwlwifi: provide gso_type to GSO packets
 
  - octeontx2: make sure the buffer is 128 byte aligned
 
  - tcp: make TCP_USER_TIMEOUT accurate for zero window probes
 
  - xfrm: fix wraparound in xfrm_policy_addr_delta()
 
  - xfrm: fix oops in xfrm_replay_advance_bmp due to a race between CPUs
          in presence of packet reorder
 
  - tcp: fix TLP timer not set when CA_STATE changes from DISORDER
         to OPEN
 
  - wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
 
 Previous releases - always broken:
 
  - igc: fix link speed advertising
 
  - stmmac: configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
 
  - team: protect features update by RCU to avoid deadlock
 
  - xfrm: fix disable_xfrm sysctl when used on xfrm interfaces themselves
 
  - fec: fix temporary RMII clock reset on link up
 
  - can: dev: prevent potential information leak in can_fill_info()
 
 Misc:
 
  - mrp: fix bad packing of MRP test packet structures
 
  - uapi: fix big endian definition of ipv6_rpl_sr_hdr
 
  - add David Ahern to IPv4/IPv6 maintainers
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes including fixes from can, xfrm, wireless,
  wireless-drivers and netfilter trees. Nothing scary, Intel
  WiFi-related fixes seemed most notable to the users.

  Current release - regressions:

   - dsa: microchip: ksz8795: fix KSZ8794 port map again to program the
     CPU port correctly

  Current release - new code bugs:

   - iwlwifi: pcie: reschedule in long-running memory reads

  Previous releases - regressions:

   - iwlwifi: dbg: don't try to overwrite read-only FW data

   - iwlwifi: provide gso_type to GSO packets

   - octeontx2: make sure the buffer is 128 byte aligned

   - tcp: make TCP_USER_TIMEOUT accurate for zero window probes

   - xfrm: fix wraparound in xfrm_policy_addr_delta()

   - xfrm: fix oops in xfrm_replay_advance_bmp due to a race between
     CPUs in presence of packet reorder

   - tcp: fix TLP timer not set when CA_STATE changes from DISORDER to
     OPEN

   - wext: fix NULL-ptr-dereference with cfg80211's lack of commit()

  Previous releases - always broken:

   - igc: fix link speed advertising

   - stmmac: configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA
     addressing

   - team: protect features update by RCU to avoid deadlock

   - xfrm: fix disable_xfrm sysctl when used on xfrm interfaces
     themselves

   - fec: fix temporary RMII clock reset on link up

   - can: dev: prevent potential information leak in can_fill_info()

  Misc:

   - mrp: fix bad packing of MRP test packet structures

   - uapi: fix big endian definition of ipv6_rpl_sr_hdr

   - add David Ahern to IPv4/IPv6 maintainers"

* tag 'net-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits)
  rxrpc: Fix memory leak in rxrpc_lookup_local
  mlxsw: spectrum_span: Do not overwrite policer configuration
  selftests: forwarding: Specify interface when invoking mausezahn
  stmmac: intel: Configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
  net: usb: cdc_ether: added support for Thales Cinterion PLSx3 modem family.
  ibmvnic: Ensure that CRQ entry read are correctly ordered
  MAINTAINERS: add missing header for bonding
  net: decnet: fix netdev refcount leaking on error path
  net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP
  can: dev: prevent potential information leak in can_fill_info()
  net: fec: Fix temporary RMII clock reset on link up
  net: lapb: Add locking to the lapb module
  team: protect features update by RCU to avoid deadlock
  MAINTAINERS: add David Ahern to IPv4/IPv6 maintainers
  net/mlx5: CT: Fix incorrect removal of tuple_nat_node from nat rhashtable
  net/mlx5e: Revert parameters on errors when changing MTU and LRO state without reset
  net/mlx5e: Revert parameters on errors when changing trust state without reset
  net/mlx5e: Correctly handle changing the number of queues when the interface is down
  net/mlx5e: Fix CT rule + encap slow path offload and deletion
  net/mlx5e: Disable hw-tc-offload when MLX5_CLS_ACT config is disabled
  ...
2021-01-28 15:24:43 -08:00
Eric Curtin
c66cb171bc Update Documentation/admin-guide/sysctl/fs.rst
max_user_watches for epoll should say 1/25, rather than 1/32

Signed-off-by: Eric Curtin <ericcurtin17@gmail.com>
Link: https://lore.kernel.org/r/20210120132648.19046-1-ericcurtin17@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:45:10 -07:00
Milan Lakhani
798eb4cc64 docs: Update DTB format references
There were two references to devicetree/booting-without-of.rst (which has
been removed) for DTB format information, and
devicetree/usage-model.rst pointed to
https://elinux.org/Device_Tree_Usage. Change all three of these references to
https://www.devicetree.org/specifications/.

Signed-off-by: Milan Lakhani <milan.lakhani@codethink.co.uk>
Link: https://lore.kernel.org/r/1611149511-4990-1-git-send-email-milan.lakhani@codethink.co.uk
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:43:15 -07:00
Steve French
bd2f0b43c1 cifs: returning mount parm processing errors correctly
During additional testing of the updated cifs.ko with the
new mount API support, we found a few additional cases where
we were logging errors, but not returning them to the user.

For example:
   a) invalid security mechanisms
   b) invalid cache options
   c) unsupported rdma
   d) invalid smb dialect requested

Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-01-28 16:43:03 -06:00
Yanteng Si
7720357d16 docs: zh_CN: add iio index.rst translation
This patch translates Documentation/iio/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>
Link: https://lore.kernel.org/r/20210121033302.558935-3-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:40:47 -07:00
Yanteng Si
9ea800c011 docs/zh_CN: add iio ep93xx_adc.rst translation
This patch translates Documentation/iio/ep93xx_adc.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>
Link: https://lore.kernel.org/r/20210121033302.558935-2-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:40:47 -07:00
Yanteng Si
452f81ed05 docs/zh_CN: add iio iio_configfs.rst translation
This patch translates Documentation/iio/iio_configfs.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>
Link: https://lore.kernel.org/r/20210121033302.558935-1-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:40:47 -07:00
Baruch Siach
56c6092be2 Documentation: ARM: fix reference to DT format documentation
The booting-without-of.rst file is no longer there. Link to
devicetree.org instead.

Fixes: 441848282c ("dt: Remove booting-without-of.rst")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/7f07e544d9fc584242d496c2f54f9303d8de0724.1611558630.git.baruch@tkos.co.il
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:37:43 -07:00
Randy Dunlap
bc47190d4f Documentation/admin-guide: kernel-parameters: update CMA entries
Add qualifying build option legend [CMA] to kernel boot options
that requirce CMA support to be enabled for them to be usable.

Also capitalize 'CMA' when it is used as an acronym.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Link: https://lore.kernel.org/r/20210125043202.22399-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:34:54 -07:00
Pali Rohár
5d2699d28c Documentation: arm: marvell: Update link to unrestricted Armada 38x Functional Spec
On Marvell website is documentation accessible without need to register or
fill any other forms.

Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20210125141529.32357-1-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:33:35 -07:00
Pali Rohár
c4822bd66f Documentation: arm: marvell: Fix dead link to Armada 37xx Product Brief
Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20210125141341.32200-1-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:33:07 -07:00
Pali Rohár
feb47df1fa Documentation: arm: marvell: Add link to public Armada 37xx Hardware Spec
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210121193418.22678-2-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:32:06 -07:00
Pali Rohár
dde0dc3a8e Documentation: arm: Fix marvell file name
Fixes: dc7a12bdfc ("docs: arm: convert docs to ReST and rename to *.rst")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210121193418.22678-1-pali@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:32:06 -07:00
Cao jin
bcadb65fd6 Documentation/x86/boot.rst: Correct the example of SETUP_INDIRECT
struct setup_data.len is the length of data field. In case of
SETUP_INDIRECT, it should be sizeof(setup_indirect).

Signed-off-by: Cao jin <jojing64@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Link: https://lore.kernel.org/r/20210127084911.63438-1-jojing64@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:25:31 -07:00
Wolfram Sang
187623b1d8 Documentation: kernel-parameters: add missing '<'
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20210127104343.5647-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-28 15:24:06 -07:00
Stephen Boyd
c52eef0b6e of/device: Don't NULLify match table in of_match_device() with CONFIG_OF=n
This effectively reverts 1db73ae39a ("of/device: Nullify match table
in of_match_device() for CONFIG_OF=n") because that commit makes it more
surprising to users of this API that the arguments may never be
referenced by any code. This is because the pre-processor will replace
the argument with NULL and then the match table will be left unreferenced
by any code but the compiler optimizer doesn't know to drop it. This can
lead to compilers warning that match tables are unused, when we really
want to pass the match table to the API but have the compiler see that
it's all inlined and not used and then drop the match table while
silencing the warning. We're being too smart here and not giving the
compiler the chance to do dead code elimination.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Frank Rowand <frowand.list@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210123034428.2841052-7-swboyd@chromium.org
2021-01-28 15:53:08 -06:00
Stephen Boyd
6e09d75513 hwmon: (lm70) Use device_get_match_data()
Use the more modern API to get the match data out of the of match table.
This saves some code, lines, and nicely avoids referencing the match
table when it is undefined with configurations where CONFIG_OF=n.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: <linux-hwmon@vger.kernel.org>
[robh: rework to use device_get_match_data()]
Signed-off-by: Rob Herring <robh@kernel.org>
2021-01-28 15:46:08 -06:00
Jakub Kicinski
32e31b7827 Merge branch 'net-sfp-add-support-for-gpon-rtl8672-rtl9601c-and-ubiquiti-u-fiber'
Pali Rohár says:

====================
net: sfp: add support for GPON RTL8672/RTL9601C and Ubiquiti U-Fiber

This is fourth version of patches which add workarounds for
RTL8672/RTL9601C EEPROMs and Ubiquiti U-Fiber Instant SFP.
====================

Link: https://lore.kernel.org/r/20210125150228.8523-1-pali@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:41:19 -08:00
Pali Rohár
f0b4f84767 net: sfp: add mode quirk for GPON module Ubiquiti U-Fiber Instant
The Ubiquiti U-Fiber Instant SFP GPON module has nonsensical information
stored in its EEPROM. It claims to support all transceiver types including
10G Ethernet. Clear all claimed modes and set only 1000baseX_Full, which is
the only one supported.

This module has also phys_id set to SFF, and the SFP subsystem currently
does not allow to use SFP modules detected as SFFs. Add exception for this
module so it can be detected as supported.

This change finally allows to detect and use SFP GPON module Ubiquiti
U-Fiber Instant on Linux system.

EEPROM content of this SFP module is (where XX is serial number):

00: 02 04 0b ff ff ff ff ff ff ff ff 03 0c 00 14 c8    ???........??.??
10: 00 00 00 00 55 42 4e 54 20 20 20 20 20 20 20 20    ....UBNT
20: 20 20 20 20 00 18 e8 29 55 46 2d 49 4e 53 54 41        .??)UF-INSTA
30: 4e 54 20 20 20 20 20 20 34 20 20 20 05 1e 00 36    NT      4   ??.6
40: 00 06 00 00 55 42 4e 54 XX XX XX XX XX XX XX XX    .?..UBNTXXXXXXXX
50: 20 20 20 20 31 34 30 31 32 33 20 20 60 80 02 41        140123  `??A

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:41:17 -08:00
Pali Rohár
426c6cbc40 net: sfp: add workaround for Realtek RTL8672 and RTL9601C chips
The workaround for VSOL V2801F brand based GPON SFP modules added in commit
0d035bed2a ("net: sfp: VSOL V2801F / CarlitoxxPro CPGOS03-0490 v2.0
workaround") works only for IDs added explicitly to the list. Since there
are rebranded modules where OEM vendors put different strings into the
vendor name field, we cannot base workaround on IDs only.

Moreover the issue which the above mentioned commit tried to work around is
generic not only to VSOL based modules, but rather to all GPON modules
based on Realtek RTL8672 and RTL9601C chips.

These include at least the following GPON modules:
* V-SOL V2801F
* C-Data FD511GX-RM0
* OPTON GP801R
* BAUDCOM BD-1234-SFM
* CPGOS03-0490 v2.0
* Ubiquiti U-Fiber Instant
* EXOT EGS1

These Realtek chips have broken EEPROM emulator which for N-byte read
operation returns just the first byte of EEPROM data, followed by N-1
zeros.

Introduce a new function, sfp_id_needs_byte_io(), which detects SFP modules
with broken EEPROM emulator based on N-1 zeros and switch to 1 byte EEPROM
reading operation.

Function sfp_i2c_read() now always uses single byte reading when it is
required and when function sfp_hwmon_probe() detects single byte access,
it disables registration of hwmon device, because in this case we cannot
reliably and atomically read 2 bytes as is required by the standard for
retrieving values from diagnostic area.

(These Realtek chips are broken in a way that violates SFP standards for
diagnostic interface. Kernel in this case simply cannot do anything less
of skipping registration of the hwmon interface.)

This patch fixes reading of EEPROM content from SFP modules based on
Realtek RTL8672 and RTL9601C chips. Diagnostic interface of EEPROM stays
broken and cannot be fixed.

Fixes: 0d035bed2a ("net: sfp: VSOL V2801F / CarlitoxxPro CPGOS03-0490 v2.0 workaround")
Co-developed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:41:17 -08:00
Dan Carpenter
12ba8f8ce2 mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()
If the kstrtouint() calls fail, then this should return a negative
error code but it currently returns success.

Fixes: dd84cb022b ("mtd: bcm63xxpart: move imagetag parsing to its own parser")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/YBKFtNaFHGYBj+u4@mwanda
2021-01-28 22:24:54 +01:00
Takeshi Misawa
b8323f7288 rxrpc: Fix memory leak in rxrpc_lookup_local
Commit 9ebeddef58 ("rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record")
Then release ref in __rxrpc_put_peer and rxrpc_put_peer_locked.

	struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp)
	-               peer->local = local;
	+               peer->local = rxrpc_get_local(local);

rxrpc_discard_prealloc also need ref release in discarding.

syzbot report:
BUG: memory leak
unreferenced object 0xffff8881080ddc00 (size 256):
  comm "syz-executor339", pid 8462, jiffies 4294942238 (age 12.350s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 0a 00 00 00 00 c0 00 08 81 88 ff ff  ................
  backtrace:
    [<000000002b6e495f>] kmalloc include/linux/slab.h:552 [inline]
    [<000000002b6e495f>] kzalloc include/linux/slab.h:682 [inline]
    [<000000002b6e495f>] rxrpc_alloc_local net/rxrpc/local_object.c:79 [inline]
    [<000000002b6e495f>] rxrpc_lookup_local+0x1c1/0x760 net/rxrpc/local_object.c:244
    [<000000006b43a77b>] rxrpc_bind+0x174/0x240 net/rxrpc/af_rxrpc.c:149
    [<00000000fd447a55>] afs_open_socket+0xdb/0x200 fs/afs/rxrpc.c:64
    [<000000007fd8867c>] afs_net_init+0x2b4/0x340 fs/afs/main.c:126
    [<0000000063d80ec1>] ops_init+0x4e/0x190 net/core/net_namespace.c:152
    [<00000000073c5efa>] setup_net+0xde/0x2d0 net/core/net_namespace.c:342
    [<00000000a6744d5b>] copy_net_ns+0x19f/0x3e0 net/core/net_namespace.c:483
    [<0000000017d3aec3>] create_new_namespaces+0x199/0x4f0 kernel/nsproxy.c:110
    [<00000000186271ef>] unshare_nsproxy_namespaces+0x9b/0x120 kernel/nsproxy.c:226
    [<000000002de7bac4>] ksys_unshare+0x2fe/0x5c0 kernel/fork.c:2957
    [<00000000349b12ba>] __do_sys_unshare kernel/fork.c:3025 [inline]
    [<00000000349b12ba>] __se_sys_unshare kernel/fork.c:3023 [inline]
    [<00000000349b12ba>] __x64_sys_unshare+0x12/0x20 kernel/fork.c:3023
    [<000000006d178ef7>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000637076d4>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: 9ebeddef58 ("rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record")
Signed-off-by: Takeshi Misawa <jeliantsurux@gmail.com>
Reported-and-tested-by: syzbot+305326672fed51b205f7@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/161183091692.3506637.3206605651502458810.stgit@warthog.procyon.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:12:14 -08:00
Jakub Kicinski
924b171c29 Merge branch 'mlxsw-various-fixes'
Ido Schimmel says:

====================
mlxsw: Various fixes

Patch #1 fixes wrong invocation of mausezahn in a couple of selftests.
The tests started failing after Fedora updated their libnet package from
version 1.1.6 to 1.2.1. With the fix the tests pass regardless of libnet
version.

Patch #2 fixes an issue in the mirroring to CPU code that results in
policer configuration being overwritten.
====================

Link: https://lore.kernel.org/r/20210128144820.3280295-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:09:03 -08:00
Ido Schimmel
b6f6881aaf mlxsw: spectrum_span: Do not overwrite policer configuration
The purpose of the delayed work in the SPAN module is to potentially
update the destination port and various encapsulation parameters of SPAN
agents that point to a VLAN device or a GRE tap. The destination port
can change following the insertion of a new route, for example.

SPAN agents that point to a physical port or the CPU port are static and
never change throughout the lifetime of the SPAN agent. Therefore, skip
over them in the delayed work.

This fixes an issue where the delayed work overwrites the policer
that was set on a SPAN agent pointing to the CPU. Modifying the delayed
work to inherit the original policer configuration is error-prone, as
the same will be needed for any new parameter.

Fixes: 4039504e6a ("mlxsw: spectrum_span: Allow setting policer on a SPAN agent")
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:09:01 -08:00
Danielle Ratson
11df27f7fd selftests: forwarding: Specify interface when invoking mausezahn
Specify the interface through which packets should be transmitted so
that the test will pass regardless of the libnet version against which
mausezahn is linked.

Fixes: cab14d1087 ("selftests: Add version of router_multipath.sh using nexthop objects")
Fixes: 3d578d8795 ("selftests: forwarding: Test IPv4 weighted nexthops")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:09:01 -08:00
Voon Weifeng
7cfc4486e7 stmmac: intel: Configure EHL PSE0 GbE and PSE1 GbE to 32 bits DMA addressing
Fix an issue where dump stack is printed and Reset Adapter occurs when
PSE0 GbE or/and PSE1 GbE is/are enabled. EHL PSE0 GbE and PSE1 GbE use
32 bits DMA addressing whereas EHL PCH GbE uses 64 bits DMA addressing.

[   25.535095] ------------[ cut here ]------------
[   25.540276] NETDEV WATCHDOG: enp0s29f2 (intel-eth-pci): transmit queue 2 timed out
[   25.548749] WARNING: CPU: 2 PID: 0 at net/sched/sch_generic.c:443 dev_watchdog+0x259/0x260
[   25.558004] Modules linked in: 8021q bnep bluetooth ecryptfs snd_hda_codec_hdmi intel_gpy marvell intel_ishtp_loader intel_ishtp_hid iTCO_wdt mei_hdcp iTCO_vendor_support x86_pkg_temp_thermal kvm_intel dwmac_intel stmmac kvm igb pcs_xpcs irqbypass phylink snd_hda_intel intel_rapl_msr pcspkr dca snd_hda_codec i915 i2c_i801 i2c_smbus libphy intel_ish_ipc snd_hda_core mei_me intel_ishtp mei spi_dw_pci 8250_lpss spi_dw thermal dw_dmac_core parport_pc tpm_crb tpm_tis parport tpm_tis_core tpm intel_pmc_core sch_fq_codel uhid fuse configfs snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_sof_xtensa_dsp snd_sof snd_soc_acpi_intel_match snd_soc_acpi snd_intel_dspcfg ledtrig_audio snd_soc_core snd_compress ac97_bus snd_pcm snd_timer snd soundcore
[   25.633795] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G     U            5.11.0-rc4-intel-lts-MISMAIL5+ #5
[   25.644306] Hardware name: Intel Corporation Elkhart Lake Embedded Platform/ElkhartLake LPDDR4x T4 RVP1, BIOS EHLSFWI1.R00.2434.A00.2010231402 10/23/2020
[   25.659674] RIP: 0010:dev_watchdog+0x259/0x260
[   25.664650] Code: e8 3b 6b 60 ff eb 98 4c 89 ef c6 05 ec e7 bf 00 01 e8 fb e5 fa ff 89 d9 4c 89 ee 48 c7 c7 78 31 d2 9e 48 89 c2 e8 79 1b 18 00 <0f> 0b e9 77 ff ff ff 0f 1f 44 00 00 48 c7 47 08 00 00 00 00 48 c7
[   25.685647] RSP: 0018:ffffb7ca80160eb8 EFLAGS: 00010286
[   25.691498] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000103
[   25.699483] RDX: 0000000080000103 RSI: 00000000000000f6 RDI: 00000000ffffffff
[   25.707465] RBP: ffff985709ce0440 R08: 0000000000000000 R09: c0000000ffffefff
[   25.715455] R10: ffffb7ca80160cf0 R11: ffffb7ca80160ce8 R12: ffff985709ce039c
[   25.723438] R13: ffff985709ce0000 R14: 0000000000000008 R15: ffff9857068af940
[   25.731425] FS:  0000000000000000(0000) GS:ffff985864300000(0000) knlGS:0000000000000000
[   25.740481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.746913] CR2: 00005567f8bb76b8 CR3: 00000001f8e0a000 CR4: 0000000000350ee0
[   25.754900] Call Trace:
[   25.757631]  <IRQ>
[   25.759891]  ? qdisc_put_unlocked+0x30/0x30
[   25.764565]  ? qdisc_put_unlocked+0x30/0x30
[   25.769245]  call_timer_fn+0x2e/0x140
[   25.773346]  run_timer_softirq+0x1f3/0x430
[   25.777932]  ? __hrtimer_run_queues+0x12c/0x2c0
[   25.783005]  ? ktime_get+0x3e/0xa0
[   25.786812]  __do_softirq+0xa6/0x2ef
[   25.790816]  asm_call_irq_on_stack+0xf/0x20
[   25.795501]  </IRQ>
[   25.797852]  do_softirq_own_stack+0x5d/0x80
[   25.802538]  irq_exit_rcu+0x94/0xb0
[   25.806475]  sysvec_apic_timer_interrupt+0x42/0xc0
[   25.811836]  asm_sysvec_apic_timer_interrupt+0x12/0x20
[   25.817586] RIP: 0010:cpuidle_enter_state+0xd9/0x370
[   25.823142] Code: 85 c0 0f 8f 0a 02 00 00 31 ff e8 22 d5 7e ff 45 84 ff 74 12 9c 58 f6 c4 02 0f 85 47 02 00 00 31 ff e8 7b a0 84 ff fb 45 85 f6 <0f> 88 ab 00 00 00 49 63 ce 48 2b 2c 24 48 89 c8 48 6b d1 68 48 c1
[   25.844140] RSP: 0018:ffffb7ca800f7e80 EFLAGS: 00000206
[   25.849996] RAX: ffff985864300000 RBX: 0000000000000003 RCX: 000000000000001f
[   25.857975] RDX: 00000005f2028ea8 RSI: ffffffff9ec5907f RDI: ffffffff9ec62a5d
[   25.865961] RBP: 00000005f2028ea8 R08: 0000000000000000 R09: 0000000000029d00
[   25.873947] R10: 000000137b0e0508 R11: ffff9858643294e4 R12: ffff9858643336d0
[   25.881935] R13: ffffffff9ef74b00 R14: 0000000000000003 R15: 0000000000000000
[   25.889918]  cpuidle_enter+0x29/0x40
[   25.893922]  do_idle+0x24a/0x290
[   25.897536]  cpu_startup_entry+0x19/0x20
[   25.901930]  start_secondary+0x128/0x160
[   25.906326]  secondary_startup_64_no_verify+0xb0/0xbb
[   25.911983] ---[ end trace b4c0c8195d0ba61f ]---
[   25.917193] intel-eth-pci 0000:00:1d.2 enp0s29f2: Reset adapter.

Fixes: 67c08ac414 ("net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID")
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Co-developed-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Link: https://lore.kernel.org/r/20210126100844.30326-1-mohammad.athari.ismail@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-28 13:07:28 -08:00
Robin Murphy
3d5eab4145 iommu/io-pgtable: Remove TLBI_ON_MAP quirk
IO_PGTABLE_QUIRK_TLBI_ON_MAP is now fully superseded by the
core API's iotlb_sync_map callback.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/5abb80bba3a7c371d5ffb7e59c05586deddb9a91.1611764372.git.robin.murphy@arm.com
[will: Remove unused 'iop' local variable from arm_v7s_map()]
Signed-off-by: Will Deacon <will@kernel.org>
2021-01-28 21:05:11 +00:00