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  9. 17 Mar, 2022 17 commits
    • Linus Torvalds's avatar
      Merge tag 'net-5.17-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 551acdc3
      Linus Torvalds authored 
      Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, ipsec, and wireless.

  A few last minute revert / disable and fix patches came down from our
  sub-trees. We're not waiting for any fixes at this point.

  Current release - regressions:

   - Revert "netfilter: nat: force port remap to prevent shadowing
     well-known ports", restore working conntrack on asymmetric paths

   - Revert "ath10k: drop beacon and probe response which leak from
     other channel", restore working AP and mesh mode on QCA9984

   - eth: intel: fix hang during reboot/shutdown

  Current release - new code bugs:

   - netfilter: nf_tables: disable register tracking, it needs more work
     to cover all corner cases

  Previous releases - regressions:

   - ipv6: fix skb_over_panic in __ip6_append_data when (admin-only)
     extension headers get specified

   - esp6: fix ESP over TCP/UDP, interpret ipv6_skip_exthdr's return
     value more selectively

   - bnx2x: fix driver load failure when FW not present in initrd

  Previous releases - always broken:

   - vsock: stop destroying unrelated sockets in nested virtualization

   - packet: fix slab-out-of-bounds access in packet_recvmsg()

  Misc:

   - add Paolo Abeni to networking maintainers!"

* tag 'net-5.17-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (26 commits)
  iavf: Fix hang during reboot/shutdown
  net: mscc: ocelot: fix backwards compatibility with single-chain tc-flower offload
  net: bcmgenet: skip invalid partial checksums
  bnx2x: fix built-in kernel driver load failure
  net: phy: mscc: Add MODULE_FIRMWARE macros
  net: dsa: Add missing of_node_put() in dsa_port_parse_of
  net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()
  Revert "ath10k: drop beacon and probe response which leak from other channel"
  hv_netvsc: Add check for kvmalloc_array
  iavf: Fix double free in iavf_reset_task
  ice: destroy flow director filter mutex after releasing VSIs
  ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats()
  Add Paolo Abeni to networking maintainers
  atm: eni: Add check for dma_map_single
  net/packet: fix slab-out-of-bounds access in packet_recvmsg()
  net: mdio: mscc-miim: fix duplicate debugfs entry
  net: phy: marvell: Fix invalid comparison in the resume and suspend functions
  esp6: fix check on ipv6_skip_exthdr's return value
  net: dsa: microchip: add spi_device_id tables
  netfilter: nf_tables: disable register tracking
  ...
      551acdc3
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.17-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c81801eb
      Linus Torvalds authored 
      Pull ACPI fix from Rafael Wysocki:
 "Revert recent commit that caused multiple systems to misbehave due to
  firmware issues"

* tag 'acpi-5.17-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: scan: Do not add device IDs from _CID if _HID is not valid"
      c81801eb
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 2ab99e54
      Linus Torvalds authored 
      Merge misc fixes from Andrew Morton:
 "Four patches.

  Subsystems affected by this patch series: mm/swap, kconfig, ocfs2, and
  selftests"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  selftests: vm: fix clang build error multiple output files
  ocfs2: fix crash when initialize filecheck kobj fails
  configs/debug: restore DEBUG_INFO=y for overriding
  mm: swap: get rid of livelock in swapin readahead
      2ab99e54
    • Yosry Ahmed's avatar
      selftests: vm: fix clang build error multiple output files · 1c4debc4
      Yosry Ahmed authored 
      When building the vm selftests using clang, some errors are seen due to
having headers in the compilation command:

  clang -Wall -I ../../../../usr/include  -no-pie    gup_test.c ../../../../mm/gup_test.h -lrt -lpthread -o .../tools/testing/selftests/vm/gup_test
  clang: error: cannot specify -o when generating multiple output files
  make[1]: *** [../lib.mk:146: .../tools/testing/selftests/vm/gup_test] Error 1

Rework to add the header files to LOCAL_HDRS before including ../lib.mk,
since the dependency is evaluated in '$(OUTPUT)/%:%.c $(LOCAL_HDRS)' in
file lib.mk.

Link: https://lkml.kernel.org/r/20220304000645.1888133-1-yosryahmed@google.comSigned-off-by: default avatarYosry Ahmed <yosryahmed@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1c4debc4
    • Joseph Qi's avatar
      ocfs2: fix crash when initialize filecheck kobj fails · 7b0b1332
      Joseph Qi authored 
      Once s_root is set, genric_shutdown_super() will be called if
fill_super() fails.  That means, we will call ocfs2_dismount_volume()
twice in such case, which can lead to kernel crash.

Fix this issue by initializing filecheck kobj before setting s_root.

Link: https://lkml.kernel.org/r/20220310081930.86305-1-joseph.qi@linux.alibaba.com
Fixes: 5f483c4a ("ocfs2: add kobject for online file check")
Signed-off-by: default avatarJoseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7b0b1332
    • Qian Cai's avatar
      configs/debug: restore DEBUG_INFO=y for overriding · 8208257d
      Qian Cai authored 
      Previously, I failed to realize that Kees' patch [1] has not been merged
into the mainline yet, and dropped DEBUG_INFO=y too eagerly from the
mainline.  As the results, "make debug.config" won't be able to flip
DEBUG_INFO=n from the existing .config.  This should close the gaps of a
few weeks before Kees' patch is there, and work regardless of their
merging status anyway.

Link: https://lore.kernel.org/all/20220125075126.891825-1-keescook@chromium.org/ [1]
Link: https://lkml.kernel.org/r/20220308153524.8618-1-quic_qiancai@quicinc.comSigned-off-by: default avatarQian Cai <quic_qiancai@quicinc.com>
Reported-by: default avatarDaniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: default avatarDaniel Thompson <daniel.thompson@linaro.org>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8208257d
    • Guo Ziliang's avatar
      mm: swap: get rid of livelock in swapin readahead · 029c4628
      Guo Ziliang authored 
      In our testing, a livelock task was found.  Through sysrq printing, same
stack was found every time, as follows:

  __swap_duplicate+0x58/0x1a0
  swapcache_prepare+0x24/0x30
  __read_swap_cache_async+0xac/0x220
  read_swap_cache_async+0x58/0xa0
  swapin_readahead+0x24c/0x628
  do_swap_page+0x374/0x8a0
  __handle_mm_fault+0x598/0xd60
  handle_mm_fault+0x114/0x200
  do_page_fault+0x148/0x4d0
  do_translation_fault+0xb0/0xd4
  do_mem_abort+0x50/0xb0

The reason for the livelock is that swapcache_prepare() always returns
EEXIST, indicating that SWAP_HAS_CACHE has not been cleared, so that it
cannot jump out of the loop.  We suspect that the task that clears the
SWAP_HAS_CACHE flag never gets a chance to run.  We try to lower the
priority of the task stuck in a livelock so that the task that clears
the SWAP_HAS_CACHE flag will run.  The results show that the system
returns to normal after the priority is lowered.

In our testing, multiple real-time tasks are bound to the same core, and
the task in the livelock is the highest priority task of the core, so
the livelocked task cannot be preempted.

Although cond_resched() is used by __read_swap_cache_async, it is an
empty function in the preemptive system and cannot achieve the purpose
of releasing the CPU.  A high-priority task cannot release the CPU
unless preempted by a higher-priority task.  But when this task is
already the highest priority task on this core, other tasks will not be
able to be scheduled.  So we think we should replace cond_resched() with
schedule_timeout_uninterruptible(1), schedule_timeout_interruptible will
call set_current_state first to set the task state, so the task will be
removed from the running queue, so as to achieve the purpose of giving
up the CPU and prevent it from running in kernel mode for too long.

(akpm: ugly hack becomes uglier.  But it fixes the issue in a
backportable-to-stable fashion while we hopefully work on something
better)

Link: https://lkml.kernel.org/r/20220221111749.1928222-1-cgel.zte@gmail.comSigned-off-by: default avatarGuo Ziliang <guo.ziliang@zte.com.cn>
Reported-by: default avatarZeal Robot <zealci@zte.com.cn>
Reviewed-by: default avatarRan Xiaokai <ran.xiaokai@zte.com.cn>
Reviewed-by: default avatarJiang Xuexin <jiang.xuexin@zte.com.cn>
Reviewed-by: default avatarYang Yang <yang.yang29@zte.com.cn>
Acked-by: default avatarHugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Roger Quadros <rogerq@kernel.org>
Cc: Ziliang Guo <guo.ziliang@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      029c4628
    • Ivan Vecera's avatar
      iavf: Fix hang during reboot/shutdown · b04683ff
      Ivan Vecera authored 
      Recent commit 97457801 ("iavf: Add waiting so the port is
initialized in remove") adds a wait-loop at the beginning of
iavf_remove() to ensure that port initialization is finished
prior unregistering net device. This causes a regression
in reboot/shutdown scenario because in this case callback
iavf_shutdown() is called and this callback detaches the device,
makes it down if it is running and sets its state to __IAVF_REMOVE.
Later shutdown callback of associated PF driver (e.g. ice_shutdown)
is called. That callback calls among other things sriov_disable()
that calls indirectly iavf_remove() (see stack trace below).
As the adapter state is already __IAVF_REMOVE then the mentioned
loop is end-less and shutdown process hangs.

The patch fixes this by checking adapter's state at the beginning
of iavf_remove() and skips the rest of the function if the adapter
is already in remove state (shutdown is in progress).

Reproducer:
1. Create VF on PF driven by ice or i40e driver
2. Ensure that the VF is bound to iavf driver
3. Reboot

[52625.981294] sysrq: SysRq : Show Blocked State
[52625.988377] task:reboot          state:D stack:    0 pid:17359 ppid:     1 f2
[52625.996732] Call Trace:
[52625.999187]  __schedule+0x2d1/0x830
[52626.007400]  schedule+0x35/0xa0
[52626.010545]  schedule_hrtimeout_range_clock+0x83/0x100
[52626.020046]  usleep_range+0x5b/0x80
[52626.023540]  iavf_remove+0x63/0x5b0 [iavf]
[52626.027645]  pci_device_remove+0x3b/0xc0
[52626.031572]  device_release_driver_internal+0x103/0x1f0
[52626.036805]  pci_stop_bus_device+0x72/0xa0
[52626.040904]  pci_stop_and_remove_bus_device+0xe/0x20
[52626.045870]  pci_iov_remove_virtfn+0xba/0x120
[52626.050232]  sriov_disable+0x2f/0xe0
[52626.053813]  ice_free_vfs+0x7c/0x340 [ice]
[52626.057946]  ice_remove+0x220/0x240 [ice]
[52626.061967]  ice_shutdown+0x16/0x50 [ice]
[52626.065987]  pci_device_shutdown+0x34/0x60
[52626.070086]  device_shutdown+0x165/0x1c5
[52626.074011]  kernel_restart+0xe/0x30
[52626.077593]  __do_sys_reboot+0x1d2/0x210
[52626.093815]  do_syscall_64+0x5b/0x1a0
[52626.097483]  entry_SYSCALL_64_after_hwframe+0x65/0xca

Fixes: 97457801 ("iavf: Add waiting so the port is initialized in remove")
Signed-off-by: default avatarIvan Vecera <ivecera@redhat.com>
Link: https://lore.kernel.org/r/20220317104524.2802848-1-ivecera@redhat.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      b04683ff
    • Vladimir Oltean's avatar
      net: mscc: ocelot: fix backwards compatibility with single-chain tc-flower offload · 8e0341ae
      Vladimir Oltean authored 
      ACL rules can be offloaded to VCAP IS2 either through chain 0, or, since
the blamed commit, through a chain index whose number encodes a specific
PAG (Policy Action Group) and lookup number.

The chain number is translated through ocelot_chain_to_pag() into a PAG,
and through ocelot_chain_to_lookup() into a lookup number.

The problem with the blamed commit is that the above 2 functions don't
have special treatment for chain 0. So ocelot_chain_to_pag(0) returns
filter->pag = 224, which is in fact -32, but the "pag" field is an u8.

So we end up programming the hardware with VCAP IS2 entries having a PAG
of 224. But the way in which the PAG works is that it defines a subset
of VCAP IS2 filters which should match on a packet. The default PAG is
0, and previous VCAP IS1 rules (which we offload using 'goto') can
modify it. So basically, we are installing filters with a PAG on which
no packet will ever match. This is the hardware equivalent of adding
filters to a chain which has no 'goto' to it.

Restore the previous functionality by making ACL filters offloaded to
chain 0 go to PAG 0 and lookup number 0. The choice of PAG is clearly
correct, but the choice of lookup number isn't "as before" (which was to
leave the lookup a "don't care"). However, lookup 0 should be fine,
since even though there are ACL actions (policers) which have a
requirement to be used in a specific lookup, that lookup is 0.

Fixes: 226e9cd8 ("net: mscc: ocelot: only install TCAM entries into a specific lookup and PAG")
Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220316192117.2568261-1-vladimir.oltean@nxp.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      8e0341ae
    • Doug Berger's avatar
      net: bcmgenet: skip invalid partial checksums · 0f643c88
      Doug Berger authored 
      The RXCHK block will return a partial checksum of 0 if it encounters
a problem while receiving a packet. Since a 1's complement sum can
only produce this result if no bits are set in the received data
stream it is fair to treat it as an invalid partial checksum and
not pass it up the stack.

Fixes: 81015539 ("net: bcmgenet: use CHECKSUM_COMPLETE for NETIF_F_RXCSUM")
Signed-off-by: default avatarDoug Berger <opendmb@gmail.com>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220317012812.1313196-1-opendmb@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      0f643c88
    • Manish Chopra's avatar
      bnx2x: fix built-in kernel driver load failure · 424e7834
      Manish Chopra authored 
      Commit b7a49f73 ("bnx2x: Utilize firmware 7.13.21.0")
added request_firmware() logic in probe() which caused
load failure when firmware file is not present in initrd (below),
as access to firmware file is not feasible during probe.

  Direct firmware load for bnx2x/bnx2x-e2-7.13.15.0.fw failed with error -2
  Direct firmware load for bnx2x/bnx2x-e2-7.13.21.0.fw failed with error -2

This patch fixes this issue by -

1. Removing request_firmware() logic from the probe()
   such that .ndo_open() handle it as it used to handle
   it earlier

2. Given request_firmware() is removed from probe(), so
   driver has to relax FW version comparisons a bit against
   the already loaded FW version (by some other PFs of same
   adapter) to allow different compatible/close enough FWs with which
   multiple PFs may run with (in different environments), as the
   given PF who is in probe flow has no idea now with which firmware
   file version it is going to initialize the device in ndo_open()

Link: https://lore.kernel.org/all/46f2d9d9-ae7f-b332-ddeb-b59802be2bab@molgen.mpg.de/Reported-by: default avatarPaul Menzel <pmenzel@molgen.mpg.de>
Tested-by: default avatarPaul Menzel <pmenzel@molgen.mpg.de>
Fixes: b7a49f73 ("bnx2x: Utilize firmware 7.13.21.0")
Signed-off-by: default avatarManish Chopra <manishc@marvell.com>
Signed-off-by: default avatarAriel Elior <aelior@marvell.com>
Link: https://lore.kernel.org/r/20220316214613.6884-1-manishc@marvell.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      424e7834
    • Juerg Haefliger's avatar
      net: phy: mscc: Add MODULE_FIRMWARE macros · f1858c27
      Juerg Haefliger authored 
      The driver requires firmware so define MODULE_FIRMWARE so that modinfo
provides the details.

Fixes: fa164e40 ("net: phy: mscc: split the driver into separate files")
Signed-off-by: default avatarJuerg Haefliger <juergh@canonical.com>
Link: https://lore.kernel.org/r/20220316151835.88765-1-juergh@canonical.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      f1858c27
    • Miaoqian Lin's avatar
      net: dsa: Add missing of_node_put() in dsa_port_parse_of · cb0b430b
      Miaoqian Lin authored 
      The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.

Fixes: 6d4e5c57 ("net: dsa: get port type at parse time")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220316082602.10785-1-linmq006@gmail.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      cb0b430b
    • Thomas Zimmermann's avatar
      drm: Don't make DRM_PANEL_BRIDGE dependent on DRM_KMS_HELPERS · 3c338405
      Thomas Zimmermann authored 
      Fix a number of undefined references to drm_kms_helper.ko in
drm_dp_helper.ko:

  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_duplicate_state':
  drm_dp_mst_topology.c:(.text+0x2df0): undefined reference to `__drm_atomic_helper_private_obj_duplicate_state'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_delayed_destroy_work':
  drm_dp_mst_topology.c:(.text+0x370c): undefined reference to `drm_kms_helper_hotplug_event'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_up_req_work':
  drm_dp_mst_topology.c:(.text+0x7938): undefined reference to `drm_kms_helper_hotplug_event'
  arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_link_probe_work':
  drm_dp_mst_topology.c:(.text+0x82e0): undefined reference to `drm_kms_helper_hotplug_event'

This happens if panel-edp.ko has been configured with

  DRM_PANEL_EDP=y
  DRM_DP_HELPER=y
  DRM_KMS_HELPER=m

which builds DP helpers into the kernel and KMS helpers sa a module.
Making DRM_PANEL_EDP select DRM_KMS_HELPER resolves this problem.

To avoid a resulting cyclic dependency with DRM_PANEL_BRIDGE, don't
make the latter depend on DRM_KMS_HELPER and fix the one DRM bridge
drivers that doesn't already select DRM_KMS_HELPER. As KMS helpers
cannot be selected directly by the user, config symbols should avoid
depending on it anyway.
Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Fixes: 3755d35e ("drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP")
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Tested-by: default avatarBrian Masney <bmasney@redhat.com>
Reported-by: default avatarkernel test robot <lkp@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Linux Kernel Functional Testing <lkft@linaro.org>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/478296/
      3c338405
    • Thomas Zimmermann's avatar
      Merge drm/drm-fixes into drm-misc-fixes · a8253684
      Thomas Zimmermann authored 
      Backmerging drm/drm-fixes for commit 3755d35e ("drm/panel: Select
DRM_DP_HELPER for DRM_PANEL_EDP").
Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
      a8253684
    • Steve French's avatar
      smb3: fix incorrect session setup check for multiuser mounts · e3ee9fb2
      Steve French authored 
      A recent change to how the SMB3 server (socket) and session status
is managed regressed multiuser mounts by changing the check
for whether session setup is needed to the socket (TCP_Server_info)
structure instead of the session struct (cifs_ses). Add additional
check in cifs_setup_sesion to fix this.

Fixes: 73f9bfbe ("cifs: maintain a state machine for tcp/smb/tcon sessions")
Reported-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Acked-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: default avatarShyam Prasad N <sprasad@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      e3ee9fb2
    • Nicolas Dichtel's avatar
      net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit() · 4ee06de7
      Nicolas Dichtel authored 
      This kind of interface doesn't have a mac header. This patch fixes
bpf_redirect() to a PIM interface.

Fixes: 27b29f63 ("bpf: add bpf_redirect() helper")
Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220315092008.31423-1-nicolas.dichtel@6wind.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      4ee06de7
  11. 16 Mar, 2022 2 commits
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