Commit graph

982,081 commits

Author SHA1 Message Date
Arnd Bergmann
6de6d18591 ionic: select CONFIG_NET_DEVLINK
When no other driver selects the devlink library code, ionic
produces a link failure:

drivers/net/ethernet/pensando/ionic/ionic_devlink.o: In function `ionic_devlink_alloc':
ionic_devlink.c:(.text+0xd): undefined reference to `devlink_alloc'
drivers/net/ethernet/pensando/ionic/ionic_devlink.o: In function `ionic_devlink_register':
ionic_devlink.c:(.text+0x71): undefined reference to `devlink_register'

Add the same 'select' statement that the other drivers use here.

Fixes: fbfb803153 ("ionic: Add hardware init and device commands")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01 09:24:05 -07:00
Adam Zerella
c5f75a14a0 docs: networking: Add title caret and missing doc
Resolving a couple of Sphinx documentation warnings
that are generated in the networking section.

- WARNING: document isn't included in any toctree
- WARNING: Title underline too short.

Signed-off-by: Adam Zerella <adam.zerella@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01 09:19:49 -07:00
Prashant Malani
5f71c84038 r8152: Factor out OOB link list waits
The same for-loop check for the LINK_LIST_READY bit of an OOB_CTRL
register is used in several places. Factor these out into a single
function to reduce the lines of code.

Change-Id: I20e8f327045a72acc0a83e2d145ae2993ab62915
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01 09:14:37 -07:00
Shuah Khan
17eac6c2db selftests: Add kselftest-all and kselftest-install targets
Add kselftest-all target to build tests from the top level
Makefile. This is to simplify kselftest use-cases for CI and
distributions where build and test systems are different.

Current kselftest target builds and runs tests on a development
system which is a developer use-case.

Add kselftest-install target to install tests from the top level
Makefile. This is to simplify kselftest use-cases for CI and
distributions where build and test systems are different.

This change addresses requests from developers and testers to add
support for installing kselftest from the main Makefile.

In addition, make the install directory the same when install is
run using "make kselftest-install" or by running kselftest_install.sh.
Also fix the INSTALL_PATH variable conflict between main Makefile and
selftests Makefile.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-10-01 10:11:08 -06:00
Lorenzo Bianconi
55131dec2b net: socionext: netsec: always grab descriptor lock
Always acquire tx descriptor spinlock even if a xdp program is not loaded
on the netsec device since ndo_xdp_xmit can run concurrently with
netsec_netdev_start_xmit and netsec_clean_tx_dring. This can happen
loading a xdp program on a different device (e.g virtio-net) and
xdp_do_redirect_map/xdp_do_redirect_slow can redirect to netsec even if
we do not have a xdp program on it.

Fixes: ba2b232108 ("net: netsec: add XDP support")
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01 09:07:47 -07:00
Daniel Campello
e6679fd1e2 platform/chrome: wilco_ec: Add debugfs test_event file
This change introduces a new debugfs file 'test_event' that when written
to causes the EC to generate a test event.
This adds a second sub cmd for the test event, and pulls out send_ec_cmd
to be a common helper between h1_gpio_get and test_event_set.

Signed-off-by: Daniel Campello <campello@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-10-01 18:07:28 +02:00
Kamal Heib
f3fceba5da RDMA/rxe: Verify modify_device mask
Verify that the passed mask to rxe_modify_device() is supported.

Link: https://lore.kernel.org/r/20190923104158.5331-4-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 13:06:10 -03:00
Kamal Heib
39ce85f3b1 RDMA/bnxt_re: Remove unsupported modify_device callback
There is no need to return always zero for function which is not
supported.

Link: https://lore.kernel.org/r/20190923104158.5331-3-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 13:06:10 -03:00
Kamal Heib
d0f3ef36bf RDMA/core: Fix return code when modify_device isn't supported
The proper return code is "-EOPNOTSUPP" when modify_device callback is not
supported.

Link: https://lore.kernel.org/r/20190923104158.5331-2-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 13:06:10 -03:00
Johannes Berg
d8dec42b5c mac80211: keep BHs disabled while calling drv_tx_wake_queue()
Drivers typically expect this, as it's the case for almost all cases
where this is called (i.e. from the TX path). Also, the code in mac80211
itself (if the driver calls ieee80211_tx_dequeue()) expects this as it
uses this_cpu_ptr() without additional protection.

This should fix various reports of the problem:
https://bugzilla.kernel.org/show_bug.cgi?id=204127
https://lore.kernel.org/linux-wireless/CAN5HydrWb3o_FE6A1XDnP1E+xS66d5kiEuhHfiGKkLNQokx13Q@mail.gmail.com/
https://lore.kernel.org/lkml/nycvar.YFH.7.76.1909111238470.473@cbobk.fhfr.pm/

Cc: stable@vger.kernel.org
Reported-and-tested-by: Jiri Kosina <jkosina@suse.cz>
Reported-by: Aaron Hill <aa1ronham@gmail.com>
Reported-by: Lukas Redlinger <rel+kernel@agilox.net>
Reported-by: Oleksii Shevchuk <alxchk@gmail.com>
Fixes: 21a5d4c3a4 ("mac80211: add stop/start logic for software TXQs")
Link: https://lore.kernel.org/r/1569928763-I3e8838c5ecad878e59d4a94eb069a90f6641461a@changeid
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:19 +02:00
Miaoqing Pan
8ed31a2640 mac80211: fix txq null pointer dereference
If the interface type is P2P_DEVICE or NAN, read the file of
'/sys/kernel/debug/ieee80211/phyx/netdev:wlanx/aqm' will get a
NULL pointer dereference. As for those interface type, the
pointer sdata->vif.txq is NULL.

Unable to handle kernel NULL pointer dereference at virtual address 00000011
CPU: 1 PID: 30936 Comm: cat Not tainted 4.14.104 #1
task: ffffffc0337e4880 task.stack: ffffff800cd20000
PC is at ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211]
LR is at ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211]
[...]
Process cat (pid: 30936, stack limit = 0xffffff800cd20000)
[...]
[<ffffff8000b7cd00>] ieee80211_if_fmt_aqm+0x34/0xa0 [mac80211]
[<ffffff8000b7c414>] ieee80211_if_read+0x60/0xbc [mac80211]
[<ffffff8000b7ccc4>] ieee80211_if_read_aqm+0x28/0x30 [mac80211]
[<ffffff80082eff94>] full_proxy_read+0x2c/0x48
[<ffffff80081eef00>] __vfs_read+0x2c/0xd4
[<ffffff80081ef084>] vfs_read+0x8c/0x108
[<ffffff80081ef494>] SyS_read+0x40/0x7c

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/1569549796-8223-1-git-send-email-miaoqing@codeaurora.org
[trim useless data from commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:19 +02:00
Miaoqing Pan
b501426cf8 nl80211: fix null pointer dereference
If the interface is not in MESH mode, the command 'iw wlanx mpath del'
will cause kernel panic.

The root cause is null pointer access in mpp_flush_by_proxy(), as the
pointer 'sdata->u.mesh.mpp_paths' is NULL for non MESH interface.

Unable to handle kernel NULL pointer dereference at virtual address 00000068
[...]
PC is at _raw_spin_lock_bh+0x20/0x5c
LR is at mesh_path_del+0x1c/0x17c [mac80211]
[...]
Process iw (pid: 4537, stack limit = 0xd83e0238)
[...]
[<c021211c>] (_raw_spin_lock_bh) from [<bf8c7648>] (mesh_path_del+0x1c/0x17c [mac80211])
[<bf8c7648>] (mesh_path_del [mac80211]) from [<bf6cdb7c>] (extack_doit+0x20/0x68 [compat])
[<bf6cdb7c>] (extack_doit [compat]) from [<c05c309c>] (genl_rcv_msg+0x274/0x30c)
[<c05c309c>] (genl_rcv_msg) from [<c05c25d8>] (netlink_rcv_skb+0x58/0xac)
[<c05c25d8>] (netlink_rcv_skb) from [<c05c2e14>] (genl_rcv+0x20/0x34)
[<c05c2e14>] (genl_rcv) from [<c05c1f90>] (netlink_unicast+0x11c/0x204)
[<c05c1f90>] (netlink_unicast) from [<c05c2420>] (netlink_sendmsg+0x30c/0x370)
[<c05c2420>] (netlink_sendmsg) from [<c05886d0>] (sock_sendmsg+0x70/0x84)
[<c05886d0>] (sock_sendmsg) from [<c0589f4c>] (___sys_sendmsg.part.3+0x188/0x228)
[<c0589f4c>] (___sys_sendmsg.part.3) from [<c058add4>] (__sys_sendmsg+0x4c/0x70)
[<c058add4>] (__sys_sendmsg) from [<c0208c80>] (ret_fast_syscall+0x0/0x44)
Code: e2822c02 e2822001 e5832004 f590f000 (e1902f9f)
---[ end trace bbd717600f8f884d ]---

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Link: https://lore.kernel.org/r/1569485810-761-1-git-send-email-miaoqing@codeaurora.org
[trim useless data from commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:19 +02:00
Johannes Berg
f43e5210c7 cfg80211: initialize on-stack chandefs
In a few places we don't properly initialize on-stack chandefs,
resulting in EDMG data to be non-zero, which broke things.

Additionally, in a few places we rely on the driver to init the
data completely, but perhaps we shouldn't as non-EDMG drivers
may not initialize the EDMG data, also initialize it there.

Cc: stable@vger.kernel.org
Fixes: 2a38075cd0 ("nl80211: Add support for EDMG channels")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/1569239475-I2dcce394ecf873376c386a78f31c2ec8b538fa25@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:18 +02:00
Johannes Berg
242b0931c1 cfg80211: validate SSID/MBSSID element ordering assumption
The code copying the data assumes that the SSID element is
before the MBSSID element, but since the data is untrusted
from the AP, this cannot be guaranteed.

Validate that this is indeed the case and ignore the MBSSID
otherwise, to avoid having to deal with both cases for the
copy of data that should be between them.

Cc: stable@vger.kernel.org
Fixes: 0b8fb8235b ("cfg80211: Parsing of Multiple BSSID information in scanning")
Link: https://lore.kernel.org/r/1569009255-I1673911f5eae02964e21bdc11b2bf58e5e207e59@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:18 +02:00
Johannes Berg
f88eb7c0d0 nl80211: validate beacon head
We currently don't validate the beacon head, i.e. the header,
fixed part and elements that are to go in front of the TIM
element. This means that the variable elements there can be
malformed, e.g. have a length exceeding the buffer size, but
most downstream code from this assumes that this has already
been checked.

Add the necessary checks to the netlink policy.

Cc: stable@vger.kernel.org
Fixes: ed1b6cc7f8 ("cfg80211/nl80211: add beacon settings")
Link: https://lore.kernel.org/r/1569009255-I7ac7fbe9436e9d8733439eab8acbbd35e55c74ef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-01 17:56:18 +02:00
Stefan Haberland
964ce509e2 Revert "s390/dasd: Add discard support for ESE volumes"
This reverts commit 7e64db1597.

The thin provisioning feature introduces an IOCTL and the discard support
to allow userspace tools and filesystems to release unused and previously
allocated space respectively.

During some internal performance improvements and further tests, the
release of allocated space revealed some issues that may lead to data
corruption in some configurations when filesystems are mounted with
discard support enabled.

While we're working on a fix and trying to clarify the situation,
this commit reverts the discard support for ESE volumes to prevent
potential data corruption.

Cc: <stable@vger.kernel.org> # 5.3
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-01 09:53:36 -06:00
Jan Höppner
dd45483981 s390/dasd: Fix error handling during online processing
It is possible that the CCW commands for reading volume and extent pool
information are not supported, either by the storage server (for
dedicated DASDs) or by z/VM (for virtual devices, such as MDISKs).

As a command reject will occur in such a case, the current error
handling leads to a failing online processing and thus the DASD can't be
used at all.

Since the data being read is not essential for an fully operational
DASD, the error handling can be removed. Information about the failing
command is sent to the s390dbf debug feature.

Fixes: c729696bcf ("s390/dasd: Recognise data for ESE volumes")
Cc: <stable@vger.kernel.org> # 5.3
Reported-by: Frank Heimes <frank.heimes@canonical.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-01 09:53:36 -06:00
Arnd Bergmann
bdf2007311 io_uring: use __kernel_timespec in timeout ABI
All system calls use struct __kernel_timespec instead of the old struct
timespec, but this one was just added with the old-style ABI. Change it
now to enforce the use of __kernel_timespec, avoiding ABI confusion and
the need for compat handlers on 32-bit architectures.

Any user space caller will have to use __kernel_timespec now, but this
is unambiguous and works for any C library regardless of the time_t
definition. A nicer way to specify the timeout would have been a less
ambiguous 64-bit nanosecond value, but I suppose it's too late now to
change that as this would impact both 32-bit and 64-bit users.

Fixes: 5262f56798 ("io_uring: IORING_OP_TIMEOUT support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-01 09:53:29 -06:00
Benoit Parrot
47c7bcfdb3 media: am437x-vpfe: Fix missing first line
Previous generation of this driver were hard coded to handle
encoder/decoder where the first line never contains any data and
was therefore always skipped, however when dealing with actual
camera sensors the first line is always present.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:52:38 -03:00
Dave Gerlach
b0e41bf23b media: am437x-vpfe: Fix suspend path to always handle pinctrl config
Currently if vpfe is not active then it returns immediately in the
suspend and resume handlers. Change this so that it always performs the
pinctrl config so that we can still get proper sleep state configuration
on the pins even if we do not need to worry about fully saving and
restoring context.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:51:34 -03:00
Shuah Khan
2c4414ce92 media: MAINTAINERS: Add reviewer to vimc driver
After practically re-writing the driver to collpase it into a monolith,
I am adding myself as a reviewer for vimc driver.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:45:20 -03:00
Shuah Khan
78364ccffd media: doc: media: vimc: Update module parameter usage information
vimc driver is now a monolithic driver. Update the module parameter
usage information to reflect that.

[m.chehab+samsung@kernel.org: fix two warnings due to wrontly added spaces]

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:41:02 -03:00
Shuah Khan
3a9e69f140 media: vimc: move duplicated IS_SRC and IS_SINK to common header
Move duplicated IS_SRC and IS_SINK dfines to common header. Rename
them to VIMC_IS_SRC and VIM_IS_SINK.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:38:01 -03:00
Shuah Khan
d7fb5c361c media: vimc: Fix gpf in rmmod path when stream is active
If vimc module is removed while streaming is in progress, sensor subdev
unregister runs into general protection fault when it tries to unregister
media entities. This is a common subdev problem related to releasing
pads from v4l2_device_unregister_subdev() before calling unregister.
Unregister references pads during unregistering subdev.

The sd release handler is the right place for releasing all sd resources
including pads. The release handlers currently release all resources
except the pads.

Fix v4l2_device_unregister_subdev() not release pads and release pads
from the sd_int_op release handlers.

kernel: [ 4136.715839] general protection fault: 0000 [#1] SMP PTI
kernel: [ 4136.715847] CPU: 2 PID: 1972 Comm: bash Not tainted 5.3.0-rc2+ #4
kernel: [ 4136.715850] Hardware name: Dell Inc. OptiPlex 790/0HY9JP, BIOS A18 09/24/2013
kernel: [ 4136.715858] RIP: 0010:media_gobj_destroy.part.16+0x1f/0x60
kernel: [ 4136.715863] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 fe 48 89 e5 53 48 89 fb 48 c7 c7 00 7f cf b0 e8 24 fa ff ff 48 8b 03 <48> 83 80 a0 00 00 00 01 48 8b 43 18 48 8b 53 10 48 89 42 08 48 89
kernel: [ 4136.715866] RSP: 0018:ffff9b2248fe3cb0 EFLAGS: 00010246
kernel: [ 4136.715870] RAX: bcf2bfbfa0d63c2f RBX: ffff88c3eb37e9c0 RCX: 00000000802a0018
kernel: [ 4136.715873] RDX: ffff88c3e4f6a078 RSI: ffff88c3eb37e9c0 RDI: ffffffffb0cf7f00
kernel: [ 4136.715876] RBP: ffff9b2248fe3cb8 R08: 0000000001000002 R09: ffffffffb0492b00
kernel: [ 4136.715879] R10: ffff9b2248fe3c28 R11: 0000000000000001 R12: 0000000000000038
kernel: [ 4136.715881] R13: ffffffffc09a1628 R14: ffff88c3e4f6a028 R15: fffffffffffffff2
kernel: [ 4136.715885] FS:  00007f8389647740(0000) GS:ffff88c465500000(0000) knlGS:0000000000000000
kernel: [ 4136.715888] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [ 4136.715891] CR2: 000055d008f80fd8 CR3: 00000001996ec005 CR4: 00000000000606e0
kernel: [ 4136.715894] Call Trace:
kernel: [ 4136.715903]  media_gobj_destroy+0x14/0x20
kernel: [ 4136.715908]  __media_device_unregister_entity+0xb3/0xe0
kernel: [ 4136.715915]  media_device_unregister_entity+0x30/0x40
kernel: [ 4136.715920]  v4l2_device_unregister_subdev+0xa8/0xe0
kernel: [ 4136.715928]  vimc_ent_sd_unregister+0x1e/0x30 [vimc]
kernel: [ 4136.715933]  vimc_sen_rm+0x16/0x20 [vimc]
kernel: [ 4136.715938]  vimc_remove+0x3e/0xa0 [vimc]
kernel: [ 4136.715945]  platform_drv_remove+0x25/0x50
kernel: [ 4136.715951]  device_release_driver_internal+0xe0/0x1b0
kernel: [ 4136.715956]  device_driver_detach+0x14/0x20
kernel: [ 4136.715960]  unbind_store+0xd1/0x130
kernel: [ 4136.715965]  drv_attr_store+0x27/0x40
kernel: [ 4136.715971]  sysfs_kf_write+0x48/0x60
kernel: [ 4136.715976]  kernfs_fop_write+0x128/0x1b0
kernel: [ 4136.715982]  __vfs_write+0x1b/0x40
kernel: [ 4136.715987]  vfs_write+0xc3/0x1d0
kernel: [ 4136.715993]  ksys_write+0xaa/0xe0
kernel: [ 4136.715999]  __x64_sys_write+0x1a/0x20
kernel: [ 4136.716005]  do_syscall_64+0x5a/0x130
kernel: [ 4136.716010]  entry_SYSCALL_64_after_hwframe+0x4

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:36:36 -03:00
Martijn Coenen
85560117d0 loop: change queue block size to match when using DIO
The loop driver assumes that if the passed in fd is opened with
O_DIRECT, the caller wants to use direct I/O on the loop device.
However, if the underlying block device has a different block size than
the loop block queue, direct I/O can't be enabled. Instead of requiring
userspace to manually change the blocksize and re-enable direct I/O,
just change the queue block sizes to match, as well as the io_min size.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-01 09:36:01 -06:00
Shuah Khan
f13d5f3619 media: vimc: Collapse component structure into a single monolithic driver
vimc uses Component API to split the driver into functional components.
The real hardware resembles a monolith structure than component and
component structure added a level of complexity making it hard to
maintain without adding any real benefit.

The sensor is one vimc component that would makes sense to be a separate
module to closely align with the real hardware. It would be easier to
collapse vimc into single monolithic driver first and then split the
sensor off as a separate module.

Collapse it into a single monolithic driver removing the Component API.
This patch removes the component API and makes minimal changes to the
code base preserving the functional division of the code structure.
Preserving the functional structure allows us to split the sensor off
as a separate module in the future.

Major design elements in this change are:
- Use existing struct vimc_ent_config and struct vimc_pipeline_config
  to drive the initialization of the functional components.
- Make vimc_device and vimc_ent_config global by moving them to
  vimc-common.h
- Add two new hooks add and rm to initialize and register, unregister
  and free subdevs.
- All component API is now gone and bind and unbind hooks are modified
  to do "add" and "rm" with minimal changes to just add and rm subdevs.
- vimc-core's bind and unbind are now register and unregister.
- Add a new field to vimc_device structure for saving the pointers to
  struct vimc_ent_device(s) subdevs create in their "add" hooks. These
  get used to create links and removing the subdevs. vimc-core allocates
  this array which sized to number of entries in the topology defined in
  the vimc_pipeline_config structure.
- vimc-core invokes "add" hooks from its vimc_register_devices().
  The "add" hooks remain the same and register subdevs. They don't
  create platform devices of their own and use vimc's pdev.dev as
  their reference device. Each "add" hook returns pointer to its struct
  vimc_ent_device. This is saved in the vimc_device ent_devs array.
- vimc-core invokes "rm" hooks from its unregister to unregister subdevs
  and cleanup.
- vimc-core invokes "add" and "rm" hooks with pointer to struct vimc_device
  and the corresponding vimc_ent_device saved in the ent_devs.

The following configure and stream test works on all devices.

media-ctl -d platform:vimc -V '"Sensor A":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d platform:vimc -V '"Debayer A":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d platform:vimc -V '"Sensor B":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d platform:vimc -V '"Debayer B":0[fmt:SBGGR8_1X8/640x480]'

v4l2-ctl -z platform:vimc -d "RGB/YUV Capture" -v width=1920,height=1440
v4l2-ctl -z platform:vimc -d "Raw Capture 0" -v pixelformat=BA81
v4l2-ctl -z platform:vimc -d "Raw Capture 1" -v pixelformat=BA81

v4l2-ctl --stream-mmap --stream-count=100 -d /dev/video1
v4l2-ctl --stream-mmap --stream-count=100 -d /dev/video2
v4l2-ctl --stream-mmap --stream-count=100 -d /dev/video3

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:34:13 -03:00
zhengbin
713f871b30 media: mc-device.c: fix memleak in media_device_register_entity
In media_device_register_entity, if media_graph_walk_init fails,
need to free the previously memory.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:26:35 -03:00
Colin Ian King
36909b552d media: i2c: mt9m001: make array init_regs static, makes object smaller
Don't populate the array init_regs on the stack but instead make it
static. Makes the object code smaller by 57 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  15935	   3600	    128	  19663	   4ccf	drivers/media/i2c/mt9m001.o

After:
   text	   data	    bss	    dec	    hex	filename
  15782	   3696	    128	  19606	   4c96	drivers/media/i2c/mt9m001.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-10-01 12:25:44 -03:00
Thierry Reding
c9e753767a soc/tegra: pmc: Fix crashes for hierarchical interrupts
Interrupts that don't have an associated wake event or GPIO wake events
end up with an associate IRQ chip that is NULL and which causes IRQ code
to crash. This is because we don't implicitly set the parent IRQ chip by
allocating the interrupt at the parent. However, there really isn't a
corresponding interrupt at the parent, so we need to work around this by
setting the special no_irq_chip as the IRQ chip for these interrupts.

Fixes: 19906e6b16 ("soc/tegra: pmc: Add wake event support")
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-01 17:20:26 +02:00
Bart Van Assche
050dbddf24 RDMA/siw: Fix port number endianness in a debug message
sin_port and sin6_port are big endian member variables. Convert these port
numbers into CPU endianness before printing.

Link: https://lore.kernel.org/r/20190930231707.48259-5-bvanassche@acm.org
Fixes: 6c52fdc244 ("rdma/siw: connection management")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 12:18:18 -03:00
Bart Van Assche
23c1c13cdd RDMA/siw: Simplify several debug messages
Do not print the remote address if it is not used. Use %pISp instead of
%pI4 %d.

Link: https://lore.kernel.org/r/20190930231707.48259-4-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 12:18:17 -03:00
Bart Van Assche
b66f31efbd RDMA/iwcm: Fix a lock inversion issue
This patch fixes the lock inversion complaint:

============================================
WARNING: possible recursive locking detected
5.3.0-rc7-dbg+ #1 Not tainted
--------------------------------------------
kworker/u16:6/171 is trying to acquire lock:
00000000035c6e6c (&id_priv->handler_mutex){+.+.}, at: rdma_destroy_id+0x78/0x4a0 [rdma_cm]

but task is already holding lock:
00000000bc7c307d (&id_priv->handler_mutex){+.+.}, at: iw_conn_req_handler+0x151/0x680 [rdma_cm]

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&id_priv->handler_mutex);
  lock(&id_priv->handler_mutex);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

3 locks held by kworker/u16:6/171:
 #0: 00000000e2eaa773 ((wq_completion)iw_cm_wq){+.+.}, at: process_one_work+0x472/0xac0
 #1: 000000001efd357b ((work_completion)(&work->work)#3){+.+.}, at: process_one_work+0x476/0xac0
 #2: 00000000bc7c307d (&id_priv->handler_mutex){+.+.}, at: iw_conn_req_handler+0x151/0x680 [rdma_cm]

stack backtrace:
CPU: 3 PID: 171 Comm: kworker/u16:6 Not tainted 5.3.0-rc7-dbg+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Workqueue: iw_cm_wq cm_work_handler [iw_cm]
Call Trace:
 dump_stack+0x8a/0xd6
 __lock_acquire.cold+0xe1/0x24d
 lock_acquire+0x106/0x240
 __mutex_lock+0x12e/0xcb0
 mutex_lock_nested+0x1f/0x30
 rdma_destroy_id+0x78/0x4a0 [rdma_cm]
 iw_conn_req_handler+0x5c9/0x680 [rdma_cm]
 cm_work_handler+0xe62/0x1100 [iw_cm]
 process_one_work+0x56d/0xac0
 worker_thread+0x7a/0x5d0
 kthread+0x1bc/0x210
 ret_from_fork+0x24/0x30

This is not a bug as there are actually two lock classes here.

Link: https://lore.kernel.org/r/20190930231707.48259-3-bvanassche@acm.org
Fixes: de910bd921 ("RDMA/cma: Simplify locking needed for serialization of callbacks")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 12:11:50 -03:00
Nagarjuna Kristam
0a728e0bda soc/tegra: fuse: Add FUSE clock check in tegra_fuse_readl()
tegra_fuse_readl() can be called from drivers at any time. If this API
is called before tegra_fuse_probe(), we end up enabling the clock before
it is registered. Add a check for the FUSE clock in tegra_fuse_readl()
and propagate any errors.

Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-01 17:02:17 +02:00
Maciej Falkowski
5a58252fa3 dt-bindings: gpu: Convert Samsung 2D Graphics Accelerator to dt-schema
Convert Samsung 2D Graphics Accelerator to newer dt-schema format

Signed-off-by: Maciej Falkowski <m.falkowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:53:00 -05:00
Maciej Falkowski
671bc90e22 dt-bindings: gpu: Convert Samsung Image Scaler to dt-schema
Convert Samsung Image Scaler to newer dt-schema format.

Signed-off-by: Maciej Falkowski <m.falkowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:53:00 -05:00
Simon Horman
bce3cff3a3 dt-bindings: bus: renesas-bsc: convert bindings to json-schema
Convert Renesas Bus State Controller (BSC) bindings documentation to
json-schema.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:53:00 -05:00
Simon Horman
785ae7420a dt-bindings: bus: simple-pm-bus: convert bindings to json-schema
Convert Simple Power-Managed Bus bindings documentation to json-schema.

As a side effect of this change only simple-pm-bus is used in example. A
follow-up patch will provide an example for the separately documented
Renesas Bus State Controller (BSC) that uses "renesas,bsc-sh73a0" and
"renesas,bsc" compat strings.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:52:59 -05:00
Krzysztof Kozlowski
4b73b6f7dc dt-bindings: timer: Use defines instead of numbers in Exynos MCT examples
Make the examples in Exynos Multi Core Timer bindings more readable and
bring them closer to real DTS by using defines for interrupt flags.
Fix also GIC interrupt type in example for Exynos4412 (from SPI to PPI).

Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:52:59 -05:00
Krzysztof Kozlowski
65eba0db22 dt-bindings: timer: Convert Exynos MCT bindings to json-schema
Convert Samsung Exynos Soc Multi Core Timer bindings to DT schema format
using json-schema.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-01 09:52:59 -05:00
Potnuri Bharat Teja
91724c1e5a RDMA/iw_cxgb4: fix SRQ access from dump_qp()
dump_qp() is wrongly trying to dump SRQ structures as QP when SRQ is used
by the application. This patch matches the QPID before dumping them.  Also
removes unwanted SRQ id addition to QP id xarray.

Fixes: 2f43129127 ("cxgb4: Convert qpidr to XArray")
Link: https://lore.kernel.org/r/20190930074119.20046-1-bharat@chelsio.com
Signed-off-by: Rahul Kundu <rahul.kundu@chelsio.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 11:48:10 -03:00
Ville Syrjälä
e22b86e973 drm/rect: Add drm_rect_init()
Add a helper to initialize a rectangle from x/y/w/h information.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190930134214.24702-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2019-10-01 17:45:20 +03:00
Ville Syrjälä
763ba2eca0 drm/rect: Add drm_rect_translate_to()
Add a helper to translate a rectangle to an absolute position.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190930134214.24702-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2019-10-01 17:45:20 +03:00
Jonathan Corbet
e07f7927d5 docs: No structured comments in kernel/dma/coherent.c
Don't try to extract comments from that file, since there are none to be
had and, seemingly, never have been.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-01 08:43:21 -06:00
Mihail Atanassov
f59769c52c drm/komeda: Workaround for broken FLIP_COMPLETE timestamps
When initially turning a crtc on, drm_reset_vblank_timestamp will
set the vblank timestamp to 0 for any driver that doesn't provide
a ->get_vblank_timestamp() hook.

Unfortunately, the FLIP_COMPLETE event depends on that timestamp,
and the only way to regenerate a valid one is to have vblank
interrupts enabled and have a valid in-ISR call to
drm_crtc_handle_vblank.

Additionally, if the user doesn't request vblanks but _does_ request
FLIP_COMPLETE events, we still don't have a good timestamp: it'll be the
same stamp as the last vblank one.

Work around the issue by always enabling vblanks when the CRTC is on.
Reducing the amount of time that PL0 has to be unmasked would be nice to
fix at a later time.

Changes since v1 [https://patchwork.freedesktop.org/patch/331727/]:
 - moved drm_crtc_vblank_put call to the ->atomic_disable() hook

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Ayan kumar halder <ayan.halder@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191001142121.13939-1-mihail.atanassov@arm.com
2019-10-01 15:39:34 +01:00
Vidya Sagar
befc1bab91 firmware: tegra: Move BPMP resume to noirq phase
Modules like PCIe in Tegra194 need BPMP firmware services in noirq phase
and hence move BPMP resume to noirq phase.
This patch is verified on Tegra210, Tegra186 and Tegra194.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Reviewed-by: Timo Alho <talho@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-01 16:38:45 +02:00
Dmitry Torokhov
260996c30f pinctrl: cherryview: restore Strago DMI workaround for all versions
This is essentially a revert of:

e3f72b749d pinctrl: cherryview: fix Strago DMI workaround
86c5dd6860 pinctrl: cherryview: limit Strago DMI workarounds to version 1.0

because even with 1.1 versions of BIOS there are some pins that are
configured as interrupts but not claimed by any driver, and they
sometimes fire up and result in interrupt storms that cause touchpad
stop functioning and other issues.

Given that we are unlikely to qualify another firmware version for a
while it is better to keep the workaround active on all Strago boards.

Reported-by: Alex Levin <levinale@chromium.org>
Fixes: 86c5dd6860 ("pinctrl: cherryview: limit Strago DMI workarounds to version 1.0")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Alex Levin <levinale@chromium.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-10-01 17:36:40 +03:00
Andy Shevchenko
57ff2df1b9 pinctrl: intel: Allocate IRQ chip dynamic
Keeping the IRQ chip definition static shares it with multiple instances of
the GPIO chip in the system. This is bad and now we get this warning from
GPIO library:

"detected irqchip that is shared with multiple gpiochips: please fix the driver."

Hence, move the IRQ chip definition from being driver static into the struct
intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.

Fixes: ee1a6ca43d ("pinctrl: intel: Add Intel Broxton pin controller support")
Depends-on: 5ff56b015e ("pinctrl: intel: Disable GPIO pin interrupts in suspend")
Reported-by: Federico Ricchiuto <fed.ricchiuto@gmail.com>
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-10-01 17:36:07 +03:00
Navid Emamdoost
34b3be18a0 RDMA/hfi1: Prevent memory leak in sdma_init
In sdma_init if rhashtable_init fails the allocated memory for
tmp_sdma_rht should be released.

Fixes: 5a52a7acf7 ("IB/hfi1: NULL pointer dereference when freeing rhashtable")
Link: https://lore.kernel.org/r/20190925144543.10141-1-navid.emamdoost@gmail.com
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 11:34:55 -03:00
Michal Kalderon
390d3fdcae RDMA/core: Fix use after free and refcnt leak on ndev in_device in iwarp_query_port
If an iWARP driver is probed and removed while there are no ips set for
the device, it will lead to a reference count leak on the inet device of
the netdevice.

In addition, the netdevice was accessed after already calling netdev_put,
which could lead to using the netdev after already freed.

Fixes: 4929116bdf ("RDMA/core: Add common iWARP query port")
Link: https://lore.kernel.org/r/20190925123332.10746-1-michal.kalderon@marvell.com
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 11:31:27 -03:00
Max Gurtovoy
6eeff06db9 IB/iser: remove redundant macro definitions
Use the general linux definition for 4K and retrieve the rest from it.

Link: https://lore.kernel.org/r/1569359148-12312-1-git-send-email-maxg@mellanox.com
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01 11:27:13 -03:00