Commit Graph

948892 Commits (94dea151bf3651c01acb12a38ca75ba9d26ea4da)

Author SHA1 Message Date
Kieran Bingham 404fc93d4a drivers: net: wan: Fix trivial spelling
The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptor -> descriptor

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:18:21 -07:00
Jakub Kicinski 4b7150040a Merge branch 'mlxsw-reg-add-policer-bandwidth-limits'
Ido Schimmel says:

====================
mlxsw: Offload tc police action

This patch set adds support for tc police action in mlxsw.

Patches #1-#2 add defines for policer bandwidth limits and resource
identifiers (e.g., maximum number of policers).

Patch #3 adds a common policer core in mlxsw. Currently it is only used
by the policy engine, but future patch sets will use it for trap
policers and storm control policers. The common core allows us to share
common logic between all policer types and abstract certain details from
the various users in mlxsw.

Patch #4 exposes the maximum number of supported policers and their
current usage to user space via devlink-resource. This provides better
visibility and also used for selftests purposes.

Patches #5-#7 gradually add support for tc police action in the policy
engine by calling into previously mentioned policer core.

Patch #8 adds a generic selftest for tc-police that can be used with
veth pairs or physical loopbacks.

Patches #9-#11 add mlxsw-specific selftests.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:41 -07:00
Ido Schimmel 46b171d7d7 selftests: mlxsw: Test policers' occupancy
Test that policers shared by different tc filters are correctly
reference counted by observing policers' occupancy via devlink-resource.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel 5061e77326 selftests: mlxsw: Add scale test for tc-police
Query the maximum number of supported policers using devlink-resource
and test that this number can be reached by configuring tc filters with
police action. Test that an error is returned in case the maximum number
is exceeded.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel cb12d17632 selftests: mlxsw: tc_restrictions: Test tc-police restrictions
Test that upper and lower limits on rate and burst size imposed by the
device are rejected by the kernel.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel afe231d32e selftests: forwarding: Add tc-police tests
Test tc-police action in various scenarios such as Rx policing, Tx
policing, shared policer and police piped to mirred. The test passes
with both veth pairs and loopbacked ports.

# ./tc_police.sh
TEST: police on rx                                                  [ OK ]
TEST: police on tx                                                  [ OK ]
TEST: police with shared policer - rx                               [ OK ]
TEST: police with shared policer - tx                               [ OK ]
TEST: police rx and mirror                                          [ OK ]
TEST: police tx and mirror                                          [ OK ]

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel af11e818a7 mlxsw: spectrum_acl: Offload FLOW_ACTION_POLICE
Offload action police when used with a flower classifier. The number of
dropped packets is read from the policer and reported to tc.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel deee0abc70 mlxsw: core_acl_flex_actions: Add police action
Add core functionality required to support police action in the policy
engine.

The utilized hardware policers are stored in a hash table keyed by the
flow action index. This allows to support policer sharing between
multiple ACL rules.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel d25b8f6ebc mlxsw: core_acl_flex_actions: Work around hardware limitation
In the policy engine, each ACL rule points to an action block where the
ACL actions are stored. Each action block consists of one or more action
sets. Each action set holds one or more individual actions, up to a
maximum queried from the device. For example:

                        Action set #1               Action set #2

+----------+          +--------------+            +--------------+
| ACL rule +---------->  Action #1   |      +----->  Action #4   |
+----------+          +--------------+      |     +--------------+
                      |  Action #2   |      |     |  Action #5   |
                      +--------------+      |     +--------------+
                      |  Action #3   +------+     |              |
                      +--------------+            +--------------+

                      <---------+ Action block +----------------->

The hardware has a limitation that prevents a policing action
(MLXSW_AFA_POLCNT_CODE when used with a policer, not a counter) from
being configured in the same action set with a trap action (i.e.,
MLXSW_AFA_TRAP_CODE or MLXSW_AFA_TRAPWU_CODE). Note that the latter used
to implement multiple actions: 'trap', 'mirred', 'drop'.

Work around this limitation by teaching mlxsw_afa_block_append_action()
to create a new action set not only when there is no more room left in
the current set, but also when there is a conflict between previously
mentioned actions.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel bf038f0372 mlxsw: spectrum_policer: Add devlink resource support
Expose via devlink-resource the maximum number of single-rate policers
and their current occupancy. Example:

$ devlink resource show pci/0000:01:00.0
...
  name global_policers size 1000 unit entry dpipe_tables none
    resources:
      name single_rate_policers size 968 occ 0 unit entry dpipe_tables none

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel 8d3fbae70d mlxsw: spectrum_policer: Add policer core
Add common code to handle all policer-related functionality in mlxsw.
Currently, only policer for policy engines are supported, but it in the
future more policer families will be added such as CPU (trap) policers
and storm control policers.

The API allows different modules to add / delete policers and read their
drop counter.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:10:00 -07:00
Ido Schimmel 1b744fc9f8 mlxsw: resources: Add resource identifier for global policers
Add a resource identifier for maximum global policers so that it could
be later used to query the information from firmware.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:09:59 -07:00
Ido Schimmel fbf0f5d185 mlxsw: reg: Add policer bandwidth limits
Add policer bandwidth limits for both rate and burst size so that they
could be enforced by a later patch.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:09:59 -07:00
Luo bin 5e126e7c4e hinic: add firmware update support
add support to update firmware by the devlink flashing API

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:06:44 -07:00
Suraj Upadhyay 514d09529d decnet: dn_dev: Remove an unnecessary label.
Remove the unnecessary label from dn_dev_ioctl() and make its error
handling simpler to read.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 18:03:28 -07:00
Vladimir Oltean 94d9f78f4d docs: networking: timestamping: add section for stacked PHC devices
The concept of timestamping DSA switches / Ethernet PHYs is becoming
more and more popular, however the Linux kernel timestamping code has
evolved quite organically and there's layers upon layers of new and old
code that need to work together for things to behave as expected.

Add this chapter to explain what the overall goals are.

Loosely based upon this email discussion plus some more info:
https://lkml.org/lkml/2020/7/6/481

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:51:30 -07:00
Stefano Garzarella f961134a61 vsock/virtio: annotate 'the_virtio_vsock' RCU pointer
Commit 0deab087b1 ("vsock/virtio: use RCU to avoid use-after-free
on the_virtio_vsock") starts to use RCU to protect 'the_virtio_vsock'
pointer, but we forgot to annotate it.

This patch adds the annotation to fix the following sparse errors:

    net/vmw_vsock/virtio_transport.c:73:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:73:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:73:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:171:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:171:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:171:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:207:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:207:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:207:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:561:13: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:561:13:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:561:13:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:612:9: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:612:9:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:612:9:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:631:9: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:631:9:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:631:9:    struct virtio_vsock *

Fixes: 0deab087b1 ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock")
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:47:15 -07:00
Alexander A. Klimov e63a228284 net: sundance: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:41:34 -07:00
Ioana Ciornei 841eb4012c dpaa2-eth: check fsl_mc_get_endpoint for IS_ERR_OR_NULL()
The fsl_mc_get_endpoint() function can return an error or directly a
NULL pointer in case the peer device is not under the root DPRC
container. Treat this case also, otherwise it would lead to a NULL
pointer when trying to access the peer fsl_mc_device.

Fixes: 7194792308 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:31:52 -07:00
Michał Mirosław 606e702207 Input: mt - cleanup open-coded __set_bit()
Replace open-coded __set_bit() with the function.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/cf1dda3a372896cb01033ce084a7deb9620df7aa.1594599118.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-15 17:31:46 -07:00
Dave Airlie 524d4f71e7 Merge tag 'drm-intel-fixes-2020-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.8-rc6:
- FBC w/a stride fix
- Fix use-after-free fix on module reload
- Ignore irq enabling on the virtual engines to fix device sleep
- Use GTT when saving/restoring engine GPR
- Fix selftest sort function

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87ft9t0vtt.fsf@intel.com
2020-07-16 10:10:16 +10:00
Dave Airlie 03d54ef0a1 * aspeed: setup fbdev console after registering device; avoids warning
and stacktrace in dmesg log
  * dmabuf: protect dmabuf->name with a spinlock; avoids sleeping in
    atomic context
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Merge tag 'drm-misc-fixes-2020-07-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 * aspeed: setup fbdev console after registering device; avoids warning
   and stacktrace in dmesg log
 * dmabuf: protect dmabuf->name with a spinlock; avoids sleeping in
   atomic context

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200715171756.GA18606@linux-uq9g
2020-07-16 10:09:59 +10:00
Dave Airlie 8257a0d913 Merge branch 'vmwgfx-fixes-5.8' of git://people.freedesktop.org/~sroland/linux into drm-fixes
fix for black screens

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: "Roland Scheidegger (VMware)" <rscheidegger.oss@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200715161843.21118-1-rscheidegger.oss@gmail.com
2020-07-16 10:08:11 +10:00
Linus Torvalds 994e99a96c platform-drivers-x86 for v5.8-2
* Fix procfs handling in Thinkpad ACPI driver
 * Fix battery management on new ASUS laptops
 * New IDs (Sapphire Rapids) in ISST tool
 
 The following is an automated git shortlog grouped by driver:
 
 asus-wmi:
  -  allow BAT1 battery name
 
 ISST:
  -  Add new PCI device ids
 
 thinkpad_acpi:
  -  Revert "Use strndup_user() in dispatch_proc_write()"
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Merge tag 'platform-drivers-x86-v5.8-2' of git://git.infradead.org/linux-platform-drivers-x86 into master

Pull x86 platform driver fixes from Andriy Shevchenko:
 "Small fixes for this cycle:

   - Fix procfs handling in Thinkpad ACPI driver

   - Fix battery management on new ASUS laptops

   - New IDs (Sapphire Rapids) in ISST tool"

* tag 'platform-drivers-x86-v5.8-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: asus-wmi: allow BAT1 battery name
  platform/x86: ISST: Add new PCI device ids
  platform/x86: thinkpad_acpi: Revert "Use strndup_user() in dispatch_proc_write()"
2020-07-15 16:05:19 -07:00
Linus Torvalds 0665a4e9a1 dmaengine fixes for v5.5-rc6
- Update dmaengine tree location to k.org
  - dmatest fix for completing threads
  - Driver fixes for:
    - k3dma
    - fsl-dma
    - idxd
    - tegra
    - and few other in bunch of other drivers
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Merge tag 'dmaengine-fix-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine into master

Pull dmaengine fixes from Vinod Koul:

 - update dmaengine tree location to kernel.org

 - dmatest fix for completing threads

 - driver fixes for k3dma, fsl-dma, idxd, ,tegra, and few other drivers

* tag 'dmaengine-fix-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (21 commits)
  dmaengine: ioat setting ioat timeout as module parameter
  dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu
  dmaengine: dmatest: stop completed threads when running without set channel
  dmaengine: fsl-edma-common: correct DSIZE_32BYTE
  dmaengine: dw: Initialize channel before each transfer
  dmaengine: idxd: fix misc interrupt handler thread unmasking
  dmaengine: idxd: cleanup workqueue config after disabling
  dmaengine: tegra210-adma: Fix runtime PM imbalance on error
  dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler
  dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
  dmaengine: fsl-edma: Add lockdep assert for exported function
  dmaengine: idxd: fix hw descriptor fields for delta record
  dmaengine: ti: k3-udma: add missing put_device() call in of_xudma_dev_get()
  dmaengine: sh: usb-dmac: set tx_result parameters
  dmaengine: ti: k3-udma: Fix delayed_work usage for tx drain workaround
  dmaengine: idxd: fix cdev locking for open and release
  dmaengine: imx-sdma: Fix: Remove 'always true' comparison
  MAINTAINERS: switch dmaengine tree to kernel.org
  dmaengine: ti: k3-udma: Fix the running channel handling in alloc_chan_resources
  dmaengine: ti: k3-udma: Fix cleanup code for alloc_chan_resources
  ...
2020-07-15 15:58:11 -07:00
Wei Yongjun 6cbba1f911 keys: asymmetric: fix error return code in software_key_query()
Fix to return negative error code -ENOMEM from kmalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: f1774cb895 ("X.509: parse public key parameters from x509 for akcipher")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-15 15:49:04 -07:00
David Howells 811f04bac1 afs: Fix interruption of operations
The afs filesystem driver allows unstarted operations to be cancelled by
signal, but most of these can easily be restarted (mkdir for example).  The
primary culprits for reproducing this are those applications that use
SIGALRM to display a progress counter.

File lock-extension operation is marked uninterruptible as we have a
limited time in which to do it, and the release op is marked
uninterruptible also as if we fail to unlock a file, we'll have to wait 20
mins before anyone can lock it again.

The store operation logs a warning if it gets interruption, e.g.:

	kAFS: Unexpected error from FS.StoreData -4

because it's run from the background - but it can also be run from
fdatasync()-type things.  However, store options aren't marked
interruptible at the moment.

Fix this in the following ways:

 (1) Mark store operations as uninterruptible.  It might make sense to
     relax this for certain situations, but I'm not sure how to make sure
     that background store ops aren't affected by signals to foreground
     processes that happen to trigger them.

 (2) In afs_get_io_locks(), where we're getting the serialisation lock for
     talking to the fileserver, return ERESTARTSYS rather than EINTR
     because a lot of the operations (e.g. mkdir) are restartable if we
     haven't yet started sending the op to the server.

Fixes: e49c7b2f6d ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-15 15:49:04 -07:00
Amir Goldstein f0e1266ed2 ovl: fix mount option checks for nfs_export with no upperdir
Without upperdir mount option, there is no index dir and the dependency
checks nfs_export => index for mount options parsing are incorrect.

Allow the combination nfs_export=on,index=off with no upperdir and move
the check for dependency redirect_dir=nofollow for non-upper mount case
to mount options parsing.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:11:15 +02:00
Amir Goldstein 470c156361 ovl: force read-only sb on failure to create index dir
With index feature enabled, on failure to create index dir, overlay is
being mounted read-only.  However, we do not forbid user to remount overlay
read-write.  Fix that by setting ofs->workdir to NULL, which prevents
remount read-write.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:11:15 +02:00
Amir Goldstein a888db3101 ovl: fix regression with re-formatted lower squashfs
Commit 9df085f3c9 ("ovl: relax requirement for non null uuid of lower
fs") relaxed the requirement for non null uuid with single lower layer to
allow enabling index and nfs_export features with single lower squashfs.

Fabian reported a regression in a setup when overlay re-uses an existing
upper layer and re-formats the lower squashfs image.  Because squashfs
has no uuid, the origin xattr in upper layer are decoded from the new
lower layer where they may resolve to a wrong origin file and user may
get an ESTALE or EIO error on lookup.

To avoid the reported regression while still allowing the new features
with single lower squashfs, do not allow decoding origin with lower null
uuid unless user opted-in to one of the new features that require
following the lower inode of non-dir upper (index, xino, metacopy).

Reported-by: Fabian <godi.beat@gmx.net>
Link: https://lore.kernel.org/linux-unionfs/32532923.JtPX5UtSzP@fgdesktop/
Fixes: 9df085f3c9 ("ovl: relax requirement for non null uuid of lower fs")
Cc: stable@vger.kernel.org # v4.20+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:10:31 +02:00
Amir Goldstein 20396365a1 ovl: fix oops in ovl_indexdir_cleanup() with nfs_export=on
Mounting with nfs_export=on, xfstests overlay/031 triggers a kernel panic
since v5.8-rc1 overlayfs updates.

 overlayfs: orphan index entry (index/00fb1..., ftype=4000, nlink=2)
 BUG: kernel NULL pointer dereference, address: 0000000000000030
 RIP: 0010:ovl_cleanup_and_whiteout+0x28/0x220 [overlay]

Bisect point at commit c21c839b84 ("ovl: whiteout inode sharing")

Minimal reproducer:
--------------------------------------------------
rm -rf l u w m
mkdir -p l u w m
mkdir -p l/testdir
touch l/testdir/testfile
mount -t overlay -o lowerdir=l,upperdir=u,workdir=w,nfs_export=on overlay m
echo 1 > m/testdir/testfile
umount m
rm -rf u/testdir
mount -t overlay -o lowerdir=l,upperdir=u,workdir=w,nfs_export=on overlay m
umount m
--------------------------------------------------

When mount with nfs_export=on, and fail to verify an orphan index, we're
cleaning this index from indexdir by calling ovl_cleanup_and_whiteout().
This dereferences ofs->workdir, that was earlier set to NULL.

The design was that ovl->workdir will point at ovl->indexdir, but we are
assigning ofs->indexdir to ofs->workdir only after ovl_indexdir_cleanup().
There is no reason not to do it sooner, because once we get success from
ofs->indexdir = ovl_workdir_create(... there is no turning back.

Reported-and-tested-by: Murphy Zhou <jencce.kernel@gmail.com>
Fixes: c21c839b84 ("ovl: whiteout inode sharing")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:09:59 +02:00
Amir Goldstein 124c2de2c0 ovl: relax WARN_ON() when decoding lower directory file handle
Decoding a lower directory file handle to overlay path with cold
inode/dentry cache may go as follows:

1. Decode real lower file handle to lower dir path
2. Check if lower dir is indexed (was copied up)
3. If indexed, get the upper dir path from index
4. Lookup upper dir path in overlay
5. If overlay path found, verify that overlay lower is the lower dir
   from step 1

On failure to verify step 5 above, user will get an ESTALE error and a
WARN_ON will be printed.

A mismatch in step 5 could be a result of lower directory that was renamed
while overlay was offline, after that lower directory has been copied up
and indexed.

This is a scripted reproducer based on xfstest overlay/052:

  # Create lower subdir
  create_dirs
  create_test_files $lower/lowertestdir/subdir
  mount_dirs
  # Copy up lower dir and encode lower subdir file handle
  touch $SCRATCH_MNT/lowertestdir
  test_file_handles $SCRATCH_MNT/lowertestdir/subdir -p -o $tmp.fhandle
  # Rename lower dir offline
  unmount_dirs
  mv $lower/lowertestdir $lower/lowertestdir.new/
  mount_dirs
  # Attempt to decode lower subdir file handle
  test_file_handles $SCRATCH_MNT -p -i $tmp.fhandle

Since this WARN_ON() can be triggered by user we need to relax it.

Fixes: 4b91c30a5a ("ovl: lookup connected ancestor of dir in inode cache")
Cc: <stable@vger.kernel.org> # v4.16+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:09:17 +02:00
youngjun d78a0dcf64 ovl: remove not used argument in ovl_check_origin
ovl_check_origin outparam 'ctrp' argument not used by caller.  So remove
this argument.

Signed-off-by: youngjun <her0gyugyu@gmail.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:06:16 +02:00
youngjun 5ac8e8025a ovl: change ovl_copy_up_flags static
"ovl_copy_up_flags" is used in copy_up.c.
so, change it static.

Signed-off-by: youngjun <her0gyugyu@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:06:16 +02:00
youngjun 24f14009b8 ovl: inode reference leak in ovl_is_inuse true case.
When "ovl_is_inuse" true case, trap inode reference not put.  plus adding
the comment explaining sequence of ovl_is_inuse after ovl_setup_trap.

Fixes: 0be0bfd2de ("ovl: fix regression caused by overlapping layers detection")
Cc: <stable@vger.kernel.org> # v4.19+
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: youngjun <her0gyugyu@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-07-16 00:05:40 +02:00
Alexander A. Klimov 41722d142b dt-bindings: mfd: dialog: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200705075542.22728-1-grandmaster@al2klimov.de
Signed-off-by: Rob Herring <robh@kernel.org>
2020-07-15 15:46:03 -06:00
Alexander A. Klimov 54b0e2eb04 dt-bindings: media: xilinx: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200705075524.22657-1-grandmaster@al2klimov.de
Signed-off-by: Rob Herring <robh@kernel.org>
2020-07-15 15:45:03 -06:00
Lee Jones 42b840bcfc scsi: aic7xxx: Fix 'amount_xferred' set but not used issue
'amount_xferred' is used, but only in certain circumstances.  Place
the same stipulations on the defining/allocating of 'amount_xferred'
as is placed when using it.

We've been careful not to change any of the ordering semantics here.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/aic7xxx/aic79xx_osm.c: In function ‘ahd_done’:
 drivers/scsi/aic7xxx/aic79xx_osm.c:1796:12: warning: variable ‘amount_xferred’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200713080001.128044-24-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:26 -04:00
Lee Jones 532d56c631 scsi: aic7xxx: Remove unused variables 'wait' and 'paused'
It looks like they have never actually been used.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/aic7xxx/aic79xx_osm.c: In function ‘ahd_linux_dev_reset’:
 drivers/scsi/aic7xxx/aic79xx_osm.c:782:9: warning: variable ‘wait’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/aic7xxx/aic79xx_osm.c:781:9: warning: variable ‘paused’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200713080001.128044-23-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:25 -04:00
Lee Jones 91b6e191c4 scsi: aic7xxx: Remove unused variable 'ahd'
Hasn't been used since 2005.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/aic7xxx/aic79xx_osm.c: In function ‘ahd_linux_slave_configure’:
 drivers/scsi/aic7xxx/aic79xx_osm.c:703:20: warning: variable ‘ahd’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200713080001.128044-22-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:24 -04:00
Lee Jones 09d99705b5 scsi: lpfc: Correct some pretty obvious misdocumentation
Either due to API slippage before the driver was mainlined or copy/paste
errors.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'qsize' not described in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_delete_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_delete_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:689: warning: Function parameter or member 'gen_req_cmp' not described in '__lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'phba' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'pwqeIn' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'wcqe' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'pnode' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'cstat' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1598: warning: bad line:  indicated in @lpfc_nvme_rport.
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Function parameter or member 'abts_cmpl' not described in 'lpfc_nvme_abort_fcreq_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Excess function parameter 'rspiocb' description in 'lpfc_nvme_abort_fcreq_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'ndlp' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'idx' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'expedite' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2197: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_create_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_destroy_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Excess function parameter 'pnvme' description in 'lpfc_nvme_destroy_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_rescan_port'
 drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'ndlp' not described in 'lpfc_nvme_rescan_port'

Link: https://lore.kernel.org/r/20200713080001.128044-21-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:24 -04:00
Lee Jones 7405edfdfb scsi: be2iscsi: Add missing function parameter description
Also promote fully documented function header to kerneldoc.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/be2iscsi/be_mgmt.c:112: warning: Function parameter or member 'phba' not described in 'mgmt_open_connection'

Link: https://lore.kernel.org/r/20200713080001.128044-20-lee.jones@linaro.org
Cc: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
Cc: Ketan Mukadam <ketan.mukadam@broadcom.com>
Cc: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Cc: linux-drivers@broadcom.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:23 -04:00
Lee Jones dbc019a48f scsi: be2iscsi: Fix misdocumentation of 'pcontext'
Also demote unintentional kerneldoc header.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/be2iscsi/be_main.c:986: warning: Function parameter or member 'pcontext' not described in 'alloc_wrb_handle'
 drivers/scsi/be2iscsi/be_main.c:986: warning: Excess function parameter 'pwrb_context' description in 'alloc_wrb_handle'
 drivers/scsi/be2iscsi/be_main.c:1409: warning: Function parameter or member 'beiscsi_conn' not described in 'beiscsi_complete_pdu'
 drivers/scsi/be2iscsi/be_main.c:1409: warning: Function parameter or member 'phdr' not described in 'beiscsi_complete_pdu'
 drivers/scsi/be2iscsi/be_main.c:1409: warning: Function parameter or member 'pdata' not described in 'beiscsi_complete_pdu'
 drivers/scsi/be2iscsi/be_main.c:1409: warning: Function parameter or member 'dlen' not described in 'beiscsi_complete_pdu'

Link: https://lore.kernel.org/r/20200713080001.128044-19-lee.jones@linaro.org
Cc: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
Cc: Ketan Mukadam <ketan.mukadam@broadcom.com>
Cc: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Cc: linux-drivers@broadcom.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:23 -04:00
Lee Jones abad069ef0 scsi: be2iscsi: Fix API/documentation slip
And add descriptions for a couple of missing function parameters.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/be2iscsi/be_iscsi.c:38: warning: Function parameter or member 'ep' not described in 'beiscsi_session_create'
 drivers/scsi/be2iscsi/be_iscsi.c:173: warning: Function parameter or member 'is_leading' not described in 'beiscsi_conn_bind'
 drivers/scsi/be2iscsi/be_iscsi.c:998: warning: Function parameter or member 'beiscsi_ep' not described in 'beiscsi_free_ep'
 drivers/scsi/be2iscsi/be_iscsi.c:998: warning: Excess function parameter 'ep' description in 'beiscsi_free_ep'
 drivers/scsi/be2iscsi/be_iscsi.c:1039: warning: Function parameter or member 'non_blocking' not described in 'beiscsi_open_conn'
 drivers/scsi/be2iscsi/be_iscsi.c:1135: warning: Function parameter or member 'shost' not described in 'beiscsi_ep_connect'
 drivers/scsi/be2iscsi/be_iscsi.c:1135: warning: Excess function parameter 'scsi_host' description in 'beiscsi_ep_connect'
 drivers/scsi/be2iscsi/be_iscsi.c:1236: warning: Function parameter or member 'beiscsi_ep' not described in 'beiscsi_conn_close'
 drivers/scsi/be2iscsi/be_iscsi.c:1236: warning: Excess function parameter 'ep' description in 'beiscsi_conn_close'

Link: https://lore.kernel.org/r/20200713080001.128044-18-lee.jones@linaro.org
Cc: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
Cc: Ketan Mukadam <ketan.mukadam@broadcom.com>
Cc: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Cc: linux-drivers@broadcom.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:22 -04:00
Lee Jones 8a692fdb1d scsi: myrs: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/myrs.c:94: warning: Function parameter or member 'cmd_blk' not described in 'myrs_reset_cmd'
 drivers/scsi/myrs.c:105: warning: Function parameter or member 'cs' not described in 'myrs_qcmd'
 drivers/scsi/myrs.c:105: warning: Function parameter or member 'cmd_blk' not described in 'myrs_qcmd'
 drivers/scsi/myrs.c:130: warning: Function parameter or member 'cs' not described in 'myrs_exec_cmd'
 drivers/scsi/myrs.c:130: warning: Function parameter or member 'cmd_blk' not described in 'myrs_exec_cmd'
 drivers/scsi/myrs.c:149: warning: Function parameter or member 'cs' not described in 'myrs_report_progress'
 drivers/scsi/myrs.c:149: warning: Function parameter or member 'ldev_num' not described in 'myrs_report_progress'
 drivers/scsi/myrs.c:149: warning: Function parameter or member 'msg' not described in 'myrs_report_progress'
 drivers/scsi/myrs.c:149: warning: Function parameter or member 'blocks' not described in 'myrs_report_progress'
 drivers/scsi/myrs.c:149: warning: Function parameter or member 'size' not described in 'myrs_report_progress'
 drivers/scsi/myrs.c:160: warning: Function parameter or member 'cs' not described in 'myrs_get_ctlr_info'
 drivers/scsi/myrs.c:222: warning: Function parameter or member 'cs' not described in 'myrs_get_ldev_info'
 drivers/scsi/myrs.c:222: warning: Function parameter or member 'ldev_num' not described in 'myrs_get_ldev_info'
 drivers/scsi/myrs.c:222: warning: Function parameter or member 'ldev_info' not described in 'myrs_get_ldev_info'
 drivers/scsi/myrs.c:310: warning: Function parameter or member 'cs' not described in 'myrs_get_pdev_info'
 drivers/scsi/myrs.c:310: warning: Function parameter or member 'channel' not described in 'myrs_get_pdev_info'
 drivers/scsi/myrs.c:310: warning: Function parameter or member 'target' not described in 'myrs_get_pdev_info'
 drivers/scsi/myrs.c:310: warning: Function parameter or member 'lun' not described in 'myrs_get_pdev_info'
 drivers/scsi/myrs.c:310: warning: Function parameter or member 'pdev_info' not described in 'myrs_get_pdev_info'
 drivers/scsi/myrs.c:353: warning: Function parameter or member 'cs' not described in 'myrs_dev_op'
 drivers/scsi/myrs.c:353: warning: Function parameter or member 'opcode' not described in 'myrs_dev_op'
 drivers/scsi/myrs.c:353: warning: Function parameter or member 'opdev' not described in 'myrs_dev_op'
 drivers/scsi/myrs.c:379: warning: Function parameter or member 'cs' not described in 'myrs_translate_pdev'
 drivers/scsi/myrs.c:379: warning: Function parameter or member 'channel' not described in 'myrs_translate_pdev'
 drivers/scsi/myrs.c:379: warning: Function parameter or member 'target' not described in 'myrs_translate_pdev'
 drivers/scsi/myrs.c:379: warning: Function parameter or member 'lun' not described in 'myrs_translate_pdev'
 drivers/scsi/myrs.c:379: warning: Function parameter or member 'devmap' not described in 'myrs_translate_pdev'
 drivers/scsi/myrs.c:422: warning: Function parameter or member 'cs' not described in 'myrs_get_event'
 drivers/scsi/myrs.c:422: warning: Function parameter or member 'event_num' not described in 'myrs_get_event'
 drivers/scsi/myrs.c:422: warning: Function parameter or member 'event_buf' not described in 'myrs_get_event'
 drivers/scsi/myrs.c:484: warning: Function parameter or member 'cs' not described in 'myrs_enable_mmio_mbox'
 drivers/scsi/myrs.c:484: warning: Function parameter or member 'enable_mbox_fn' not described in 'myrs_enable_mmio_mbox'
 drivers/scsi/myrs.c:584: warning: Function parameter or member 'cs' not described in 'myrs_get_config'
 drivers/scsi/myrs.c:688: warning: cannot understand function prototype: 'struct '
 drivers/scsi/myrs.c:1967: warning: Function parameter or member 'dev' not described in 'myrs_is_raid'
 drivers/scsi/myrs.c:1980: warning: Function parameter or member 'dev' not described in 'myrs_get_resync'
 drivers/scsi/myrs.c:2005: warning: Function parameter or member 'dev' not described in 'myrs_get_state'
 drivers/scsi/myrs.c:2343: warning: bad line:   the Error Status Register when the driver performs the BIOS handshaking.
 drivers/scsi/myrs.c:2344: warning: bad line:   It returns true for fatal errors and false otherwise.
 drivers/scsi/myrs.c:2349: warning: Function parameter or member 'cs' not described in 'myrs_err_status'
 drivers/scsi/myrs.c:2349: warning: Function parameter or member 'status' not described in 'myrs_err_status'
 drivers/scsi/myrs.c:2349: warning: Function parameter or member 'parm0' not described in 'myrs_err_status'
 drivers/scsi/myrs.c:2349: warning: Function parameter or member 'parm1' not described in 'myrs_err_status'

Link: https://lore.kernel.org/r/20200713080001.128044-16-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@kernel.org>
Cc: Linux GmbH <hare@suse.com>
Cc: "Leonard N. Zubkoff" <lnz@dandelion.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:26:59 -04:00
Lee Jones f3bdc59f9b scsi: ipr: Fix struct packed-not-aligned issues
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/ipr.h:1687:1: warning: alignment 1 of ‘struct ipr_dump_location_entry’ is less than 4 [-Wpacked-not-aligned]
 1687 | }__attribute__((packed));
 | ^
 drivers/scsi/ipr.h:1711:1: warning: alignment 1 of ‘struct ipr_driver_dump’ is less than 4 [-Wpacked-not-aligned]
 1711 | }__attribute__((packed));
 | ^

Link: https://lore.kernel.org/r/20200713080001.128044-15-lee.jones@linaro.org
Cc: Brian King <brking@us.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:26:58 -04:00
Lee Jones 4dc833999e scsi: ipr: Remove a bunch of set but checked variables
Fixes the following W=1 kernel build warning(s):

In file included from  drivers/scsi/ipr.c:73:
 drivers/scsi/ipr.c: In function ‘ipr_mask_and_clear_interrupts’:
 drivers/scsi/ipr.c:740:15: warning: variable ‘int_reg’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/ipr.c: In function ‘ipr_cancel_op’:
 drivers/scsi/ipr.c:5497:13: warning: variable ‘int_reg’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/ipr.c: In function ‘ipr_iopoll’:
 drivers/scsi/ipr.c:5765:22: warning: variable ‘ioa_cfg’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/ipr.c: In function ‘ipr_reset_restore_cfg_space’:
 drivers/scsi/ipr.c:8662:6: warning: variable ‘int_reg’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/ipr.c: In function ‘ipr_test_msi’:

Link: https://lore.kernel.org/r/20200713080001.128044-14-lee.jones@linaro.org
Cc: Brian King <brking@us.ibm.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:25:16 -04:00
Lee Jones e31f2661ff scsi: virtio_scsi: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the sourcefile and no descriptions are
provided.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/virtio_scsi.c:109: warning: Function parameter or member 'vscsi' not described in 'virtscsi_complete_cmd'
 drivers/scsi/virtio_scsi.c:109: warning: Function parameter or member 'buf' not described in 'virtscsi_complete_cmd'

Link: https://lore.kernel.org/r/20200713080001.128044-13-lee.jones@linaro.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:25:16 -04:00
Lee Jones a96099e2c1 scsi: ipr: Fix a mountain of kerneldoc misdemeanours
Mainly misspellings and/or missing function parameter descriptions.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/ipr.c:10100:15: warning: variable ‘int_reg’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/ipr.c:679: warning: Function parameter or member 'fast_done' not described in 'ipr_init_ipr_cmnd'
 drivers/scsi/ipr.c:697: warning: Function parameter or member 'hrrq' not described in '__ipr_get_free_ipr_cmnd'
 drivers/scsi/ipr.c:697: warning: Excess function parameter 'ioa_cfg' description in '__ipr_get_free_ipr_cmnd'
 drivers/scsi/ipr.c:1297: warning: Function parameter or member 'buffer' not described in '__ipr_format_res_path'
 drivers/scsi/ipr.c:1297: warning: Excess function parameter 'buf' description in '__ipr_format_res_path'
 drivers/scsi/ipr.c:1321: warning: Function parameter or member 'buffer' not described in 'ipr_format_res_path'
 drivers/scsi/ipr.c:1321: warning: Excess function parameter 'buf' description in 'ipr_format_res_path'
 drivers/scsi/ipr.c:1400: warning: Excess function parameter 'cfgtew' description in 'ipr_clear_res_target'
 drivers/scsi/ipr.c:2679: warning: Function parameter or member 't' not described in 'ipr_timeout'
 drivers/scsi/ipr.c:2679: warning: Excess function parameter 'ipr_cmd' description in 'ipr_timeout'
 drivers/scsi/ipr.c:2712: warning: Function parameter or member 't' not described in 'ipr_oper_timeout'
 drivers/scsi/ipr.c:2712: warning: Excess function parameter 'ipr_cmd' description in 'ipr_oper_timeout'
 drivers/scsi/ipr.c:3494: warning: Function parameter or member 'attr' not described in 'ipr_show_fw_version'
 drivers/scsi/ipr.c:3528: warning: Function parameter or member 'attr' not described in 'ipr_show_log_level'
 drivers/scsi/ipr.c:3551: warning: Function parameter or member 'attr' not described in 'ipr_store_log_level'
 drivers/scsi/ipr.c:3551: warning: Function parameter or member 'count' not described in 'ipr_store_log_level'
 drivers/scsi/ipr.c:3586: warning: Function parameter or member 'attr' not described in 'ipr_store_diagnostics'
 drivers/scsi/ipr.c:3642: warning: Function parameter or member 'dev' not described in 'ipr_show_adapter_state'
 drivers/scsi/ipr.c:3642: warning: Function parameter or member 'attr' not described in 'ipr_show_adapter_state'
 drivers/scsi/ipr.c:3642: warning: Excess function parameter 'class_dev' description in 'ipr_show_adapter_state'
 drivers/scsi/ipr.c:3671: warning: Function parameter or member 'attr' not described in 'ipr_store_adapter_state'
 drivers/scsi/ipr.c:3722: warning: Function parameter or member 'attr' not described in 'ipr_store_reset_adapter'
 drivers/scsi/ipr.c:3783: warning: Function parameter or member 'attr' not described in 'ipr_store_iopoll_weight'
 drivers/scsi/ipr.c:3783: warning: Function parameter or member 'count' not described in 'ipr_store_iopoll_weight'
 drivers/scsi/ipr.c:3883: warning: Function parameter or member 'sglist' not described in 'ipr_free_ucode_buffer'
 drivers/scsi/ipr.c:3883: warning: Excess function parameter 'p_dnld' description in 'ipr_free_ucode_buffer'
 drivers/scsi/ipr.c:4074: warning: Function parameter or member 'dev' not described in 'ipr_store_update_fw'
 drivers/scsi/ipr.c:4074: warning: Function parameter or member 'attr' not described in 'ipr_store_update_fw'
 drivers/scsi/ipr.c:4074: warning: Excess function parameter 'class_dev' description in 'ipr_store_update_fw'
 drivers/scsi/ipr.c:4149: warning: Function parameter or member 'attr' not described in 'ipr_show_fw_type'
 drivers/scsi/ipr.c:4489: warning: Excess function parameter 'reason' description in 'ipr_change_queue_depth'
 drivers/scsi/ipr.c:4660: warning: Function parameter or member 'attr' not described in 'ipr_show_raw_mode'
 drivers/scsi/ipr.c:4688: warning: Function parameter or member 'attr' not described in 'ipr_store_raw_mode'
 drivers/scsi/ipr.c:4688: warning: Function parameter or member 'count' not described in 'ipr_store_raw_mode'
 drivers/scsi/ipr.c:5069: warning: Function parameter or member 'ipr_cmd' not described in 'ipr_cmnd_is_free'
 drivers/scsi/ipr.c:5108: warning: Function parameter or member 'ioa_cfg' not described in 'ipr_wait_for_ops'
 drivers/scsi/ipr.c:5108: warning: Excess function parameter 'ipr_cmd' description in 'ipr_wait_for_ops'
 drivers/scsi/ipr.c:5272: warning: Function parameter or member 'deadline' not described in 'ipr_sata_reset'
 drivers/scsi/ipr.c:5453: warning: Function parameter or member 't' not described in 'ipr_abort_timeout'
 drivers/scsi/ipr.c:5453: warning: Excess function parameter 'ipr_cmd' description in 'ipr_abort_timeout'
 drivers/scsi/ipr.c:5578: warning: Function parameter or member 'shost' not described in 'ipr_scan_finished'
 drivers/scsi/ipr.c:5578: warning: Function parameter or member 'elapsed_time' not described in 'ipr_scan_finished'
 drivers/scsi/ipr.c:5578: warning: Excess function parameter 'scsi_cmd' description in 'ipr_scan_finished'
 drivers/scsi/ipr.c:5704: warning: Function parameter or member 'number' not described in 'ipr_isr_eh'
 drivers/scsi/ipr.c:6278: warning: Function parameter or member 'ipr_cmd' not described in 'ipr_gen_sense'
 drivers/scsi/ipr.c:6278: warning: Excess function parameter 'ioasa' description in 'ipr_gen_sense'
 drivers/scsi/ipr.c:6278: warning: Excess function parameter 'sense_buf' description in 'ipr_gen_sense'
 drivers/scsi/ipr.c:6711: warning: Function parameter or member 'host' not described in 'ipr_ioa_info'
 drivers/scsi/ipr.c:6711: warning: Excess function parameter 'scsi_host' description in 'ipr_ioa_info'
 drivers/scsi/ipr.c:7606: warning: Function parameter or member 'res_handle' not described in 'ipr_build_mode_sense'
 drivers/scsi/ipr.c:7606: warning: Excess function parameter 'res' description in 'ipr_build_mode_sense'
 drivers/scsi/ipr.c:7947: warning: Function parameter or member 'ipr_cmd' not described in 'ipr_ioafp_set_caching_parameters'
 drivers/scsi/ipr.c:7986: warning: Function parameter or member 'flags' not described in 'ipr_ioafp_inquiry'
 drivers/scsi/ipr.c:7986: warning: Function parameter or member 'page' not described in 'ipr_ioafp_inquiry'
 drivers/scsi/ipr.c:7986: warning: Function parameter or member 'dma_addr' not described in 'ipr_ioafp_inquiry'
 drivers/scsi/ipr.c:7986: warning: Function parameter or member 'xfer_len' not described in 'ipr_ioafp_inquiry'
 drivers/scsi/ipr.c:8280: warning: Function parameter or member 't' not described in 'ipr_reset_timer_done'
 drivers/scsi/ipr.c:8280: warning: Excess function parameter 'ipr_cmd' description in 'ipr_reset_timer_done'
 drivers/scsi/ipr.c:9486: warning: bad line:
 drivers/scsi/ipr.c:9609: warning: Function parameter or member 'ioa_cfg' not described in 'ipr_free_all_resources'
 drivers/scsi/ipr.c:9609: warning: Excess function parameter 'ipr_cmd' description in 'ipr_free_all_resources'
 drivers/scsi/ipr.c:10071: warning: Function parameter or member 'irq' not described in 'ipr_test_intr'
 drivers/scsi/ipr.c:10071: warning: Function parameter or member 'devp' not described in 'ipr_test_intr'
 drivers/scsi/ipr.c:10071: warning: Excess function parameter 'pdev' description in 'ipr_test_intr'
 drivers/scsi/ipr.c:10098: warning: Function parameter or member 'ioa_cfg' not described in 'ipr_test_msi'
 drivers/scsi/ipr.c:10538: warning: Function parameter or member 'pdev' not described in 'ipr_probe'
 drivers/scsi/ipr.c:10538: warning: Function parameter or member 'dev_id' not described in 'ipr_probe'
 drivers/scsi/ipr.c:10794: warning: Function parameter or member 'ipr_cmd' not described in 'ipr_halt_done'
 drivers/scsi/ipr.c:10805: warning: Function parameter or member 'nb' not described in 'ipr_halt'
 drivers/scsi/ipr.c:10805: warning: Function parameter or member 'event' not described in 'ipr_halt'
 drivers/scsi/ipr.c:10805: warning: Function parameter or member 'buf' not described in 'ipr_halt'

Link: https://lore.kernel.org/r/20200713080001.128044-12-lee.jones@linaro.org
Cc: Brian King <brking@us.ibm.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:25:15 -04:00
Lee Jones e1c3e0f8a2 scsi: pm8001: Provide descriptions for the many undocumented 'attr's
... even if they are completely unused.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/pm8001/pm8001_ctl.c:56: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_mpi_interface_rev_show'
 drivers/scsi/pm8001/pm8001_ctl.c:81: warning: Function parameter or member 'attr' not described in 'controller_fatal_error_show'
 drivers/scsi/pm8001/pm8001_ctl.c💯 warning: Function parameter or member 'attr' not described in 'pm8001_ctl_fw_version_show'
 drivers/scsi/pm8001/pm8001_ctl.c:130: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_ila_version_show'
 drivers/scsi/pm8001/pm8001_ctl.c:155: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_inactive_fw_version_show'
 drivers/scsi/pm8001/pm8001_ctl.c:181: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_max_out_io_show'
 drivers/scsi/pm8001/pm8001_ctl.c:204: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_max_devices_show'
 drivers/scsi/pm8001/pm8001_ctl.c:230: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_max_sg_list_show'
 drivers/scsi/pm8001/pm8001_ctl.c:274: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_sas_spec_support_show'
 drivers/scsi/pm8001/pm8001_ctl.c:303: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_host_sas_address_show'
 drivers/scsi/pm8001/pm8001_ctl.c:322: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_logging_level_show'
 drivers/scsi/pm8001/pm8001_ctl.c:355: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_aap_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:390: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_ib_queue_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:423: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_ob_queue_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:454: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_bios_version_show'
 drivers/scsi/pm8001/pm8001_ctl.c:492: warning: Function parameter or member 'attr' not described in 'event_log_size_show'
 drivers/scsi/pm8001/pm8001_ctl.c:510: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_iop_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:548: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_fatal_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:566: warning: Function parameter or member 'attr' not described in 'non_fatal_log_show'
 drivers/scsi/pm8001/pm8001_ctl.c:609: warning: Function parameter or member 'attr' not described in 'pm8001_ctl_gsm_log_show'

Link: https://lore.kernel.org/r/20200713080001.128044-11-lee.jones@linaro.org
Cc: Jack Wang <jinpu.wang@cloud.ionos.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:25:14 -04:00