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Every function that returns COMPST_ERROR must set wqe->status to another
value than IB_WC_SUCCESS before returning COMPST_ERROR. Fix the only code
path for which this is not yet the case.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This will allow FW to not send more data to TP (which would then need to
be buffered). Pass the negotiated TCP window scale to FW in the FLOWC WR.
Also refactor send_flowc() a bit to clean it up.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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[ 61.182439] UBSAN: Undefined behaviour in drivers/infiniband/hw/mlx5/qp.c:5366:34
[ 61.183673] shift exponent 4294967288 is too large for 32-bit type 'unsigned int'
[ 61.185530] CPU: 0 PID: 639 Comm: qp Not tainted 4.18.0-rc1-00037-g4aa1d69a9c60-dirty #96
[ 61.186981] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-2.fc27 04/01/2014
[ 61.188315] Call Trace:
[ 61.188661] dump_stack+0xc7/0x13b
[ 61.190427] ubsan_epilogue+0x9/0x49
[ 61.190899] __ubsan_handle_shift_out_of_bounds+0x1ea/0x22f
[ 61.197040] mlx5_ib_create_wq+0x1c99/0x1d50
[ 61.206632] ib_uverbs_ex_create_wq+0x499/0x820
[ 61.213892] ib_uverbs_write+0x77e/0xae0
[ 61.248018] vfs_write+0x121/0x3b0
[ 61.249831] ksys_write+0xa1/0x120
[ 61.254024] do_syscall_64+0x7c/0x2a0
[ 61.256178] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 61.259211] RIP: 0033:0x7f54bab70e99
[ 61.262125] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89
[ 61.268678] RSP: 002b:00007ffe1541c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 61.271076] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f54bab70e99
[ 61.273795] RDX: 0000000000000070 RSI: 0000000020000240 RDI: 0000000000000003
[ 61.276982] RBP: 00007ffe1541c330 R08: 00000000200078e0 R09: 0000000000000002
[ 61.280035] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004005c0
[ 61.283279] R13: 00007ffe1541c420 R14: 0000000000000000 R15: 0000000000000000
Cc: <stable@vger.kernel.org> # 4.7
Fixes: 79b20a6c3014 ("IB/mlx5: Add receive Work Queue verbs")
Cc: syzkaller <syzkaller@googlegroups.com>
Reported-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This adds overflow tests for the new check_shift_overflow() helper to
validate overflow, signedness glitches, storage glitches, etc.
Co-developed-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Add shift_overflow() helper to assist driver authors in ensuring that
shift operations don't cause overflows or other odd conditions.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
[kees: tweaked comments and commit log, dropped unneeded assignment]
Signed-off-by: Kees Cook <keescook@chromium.org>
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Function update_rgrp_lvb_unlinked used to do the same thing as
be32_add_cpu. This patch removes it in favor of using be32_add_cpu
directly.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andrew Price <anprice@redhat.com>
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mempool_destroy has taken the null pointer into account. So it is safe
to remove the null check.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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debugfs_remove_recursive has taken null pointer into account. So it is
safe to drop the null check before calling the function.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The current balloon code tries to calculate a delta factor for the
balloon target when running in HVM mode in order to account for memory
used by the firmware.
This workaround for memory accounting doesn't work properly on a PVH
Dom0, that has a static-max value different from the target value even
at startup. Note that this is not a problem for DomUs because guests are
started with a static-max value that matches the amount of RAM in the
memory map.
Fix this by forcefully setting target_diff for Dom0, regardless of
it's mode.
Reported-by: Gabriel Bercarug <bercarug@amazon.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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This comment has been there since the driver was introduced, but seems
to be a leftover from previous iterations of the driver. Indeed, we do
not lookup in a list to find the register ranges that matches the
given port/lane, as the "reg" property is in each sub-node
representing a PCI port. There is no lookup involved at all.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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Rather than using the ARM-specific pci_common_init_dev() API, use the
pci_host_bridge logic directly.
Unfortunately, we can't use devm_of_pci_get_host_bridge_resources(),
because the DT binding for describing PCIe apertures for this PCI
controller is a bit special, and we cannot retrieve them from the
'ranges' property. Therefore, we still have some special code to
handle this.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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The siano's debugfs register logic is optional: it should be ok
if it fails. So, no need to check if debufs register succeeded.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As sparse complains:
drivers/media/platform/omap3isp/isp.c:303:39: warning: Using plain integer as NULL pointer
when a struct is initialized with { 0 }, actually the first
element of the struct is initialized with zeros, initializing the
other elements recursively. That can even generate gcc warnings
on nested structs.
So, instead, use the gcc-specific syntax for that (with is used
broadly inside the Kernel), initializing it with {};
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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All poll handlers should return a poll flag, and not error codes. So,
instead of returning an error, do the right thing here,
e. g. to return EPOLERR on errors, just like the V4L2 VB2 code.
Solves the following sparse warning:
drivers/media/radio/radio-wl1273.c:1099:24: warning: incorrect type in return expression (different base types)
drivers/media/radio/radio-wl1273.c:1099:24: expected restricted __poll_t
drivers/media/radio/radio-wl1273.c:1099:24: got int
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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All poll handlers should return a poll flag, and not error codes. So,
instead of returning an error, do the right thing here,
e. g. to return EPOLERR on errors, just like the V4L2 VB2 code.
Solves the following sparse warning:
drivers/media/platform/s3c-camif/camif-capture.c:604:21: warning: incorrect type in assignment (different base types)
drivers/media/platform/s3c-camif/camif-capture.c:604:21: expected restricted __poll_t [usertype] ret
drivers/media/platform/s3c-camif/camif-capture.c:604:21: got int
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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All poll handlers should return a poll flag, and not error codes. So,
instead of returning an error, do the right thing at saa7164,
e. g. to return EPOLERR on errors, just like the V4L2 VB2 code.
Solves the following sparse warnings:
drivers/media/pci/saa7164/saa7164-vbi.c:632:24: warning: incorrect type in return expression (different base types)
drivers/media/pci/saa7164/saa7164-vbi.c:632:24: expected restricted __poll_t
drivers/media/pci/saa7164/saa7164-vbi.c:632:24: got int
drivers/media/pci/saa7164/saa7164-vbi.c:637:40: warning: incorrect type in return expression (different base types)
drivers/media/pci/saa7164/saa7164-vbi.c:637:40: expected restricted __poll_t
drivers/media/pci/saa7164/saa7164-vbi.c:637:40: got int
drivers/media/pci/saa7164/saa7164-vbi.c:647:40: warning: incorrect type in return expression (different base types)
drivers/media/pci/saa7164/saa7164-vbi.c:647:40: expected restricted __poll_t
drivers/media/pci/saa7164/saa7164-vbi.c:647:40: got int
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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All poll routines expect a poll flag, and not error codes. So,
instead of returning -ERESTARTSYS if the mutex got interrupted,
return EPOLERR, just like the V4L2 VB2 code.
Solves this sparce warning:
drivers/media/platform/exynos-gsc/gsc-m2m.c:716:24: warning: incorrect type in return expression (different base types)
drivers/media/platform/exynos-gsc/gsc-m2m.c:716:24: expected restricted __poll_t
drivers/media/platform/exynos-gsc/gsc-m2m.c:716:24: got int
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The v4l2_subdev_get_try_format() function is only defined if the
VIDEO_V4L2_SUBDEV_API Kconfig option is enabled. Builds configured
without that symbol fails with:
drivers/media/i2c/mt9v111.c:801:10: error: implicit declaration of function
'v4l2_subdev_get_try_format';
Fix this by protecting the function call by testing for the right symbol.
media: mt9v111: fix random build errors
Fix the internal check for it to do the right thing if the
subdev API is not built.
Fixes: aab7ed1c ("media: i2c: Add driver for Aptina MT9V111")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of doing casts, use %zd to print sizes, in order to make
smatch happier:
drivers/media/tuners/xc4000.c:818 xc4000_fwupload() warn: argument 4 to %d specifier is cast from pointer
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of doing casts, use %zd to print sizes, in order to make
smatch happier:
drivers/media/dvb-frontends/drx39xyj/drxj.c:11814 drx_ctrl_u_code() warn: argument 4 to %u specifier is cast from pointer
drivers/media/dvb-frontends/drx39xyj/drxj.c:11845 drx_ctrl_u_code() warn: argument 3 to %u specifier is cast from pointer
drivers/media/dvb-frontends/drx39xyj/drxj.c:11869 drx_ctrl_u_code() warn: argument 3 to %u specifier is cast from pointer
drivers/media/dvb-frontends/drx39xyj/drxj.c:11878 drx_ctrl_u_code() warn: argument 3 to %u specifier is cast from pointer
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Makes smatch happier by using %zd instead of casting sizes:
drivers/media/tuners/tuner-xc2028.c:378 load_all_firmwares() warn: argument 4 to %d specifier is cast from pointer
drivers/media/tuners/tuner-xc2028.c:619 load_firmware() warn: argument 6 to %d specifier is cast from pointer
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As Ian pointed out, adding a '-' to the fallthrough seems to meet
the regex requirements at level 3 of the warning, at least when
the comment fits into a single line.
So, replace by a single line the comments that were broken into
multiple lines just to make gcc -Wimplicit-fallthrough=3 happy.
Suggested-by: Ian Arkver <ian.arkver.dev@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The vivid driver uses a complex logic to save one kalloc/kfree
allocation. That non-trivial way of allocating data causes
smatch to warn:
drivers/media/platform/vivid/vivid-core.c:869 vivid_create_instance() warn: potentially one past the end of array 'dev->query_dv_timings_qmenu[dev->query_dv_timings_size]'
drivers/media/platform/vivid/vivid-core.c:869 vivid_create_instance() warn: potentially one past the end of array 'dev->query_dv_timings_qmenu[dev->query_dv_timings_size]'
I also needed to read the code several times in order to understand
what it was desired there. It turns that the logic was right,
although confusing to read.
As it is doing allocations on a non-standard way, let's add some
documentation while shutting up the false positive.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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smatch warns that the RC query code could go past the array size:
drivers/media/usb/dvb-usb-v2/rtl28xxu.c:1757 rtl2832u_rc_query() error: buffer overflow 'buf' 128 <= 130
drivers/media/usb/dvb-usb-v2/rtl28xxu.c:1758 rtl2832u_rc_query() error: buffer overflow 'buf' 128 <= 130
The driver logic gets the length of the IR RX buffer with:
ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
...
len = buf[0];
In thesis, this could range between 0 and 255 [1].
While this should never happen in practice, due to hardware limits,
smatch is right when it complains about that, as there's nothing at
the logic that would prevent it. So, if for whatever reason, buf[0]
gets filled by rtl28xx read functions with a value bigger than 128,
it will go past the array.
So, add an explicit check.
[1] I've no idea why smatch thinks that the maximum value is 130.
I double-checked the code several times. Was unable to find any
reason for assuming 130. Perhaps smatch is not properly parsing
u8 here?
Fixes: b5cbaa43a676 ("[media] rtl28xx: initial support for rtl2832u")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As warned by smatch:
drivers/media/i2c/mt9v111.c:854 mt9v111_enum_frame_size() error: buffer overflow 'mt9v111_frame_sizes' 5 <= 5
drivers/media/i2c/mt9v111.c:855 mt9v111_enum_frame_size() error: buffer overflow 'mt9v111_frame_sizes' 5 <= 5
drivers/media/i2c/mt9v111.c:856 mt9v111_enum_frame_size() error: buffer overflow 'mt9v111_frame_sizes' 5 <= 5
drivers/media/i2c/mt9v111.c:857 mt9v111_enum_frame_size() error: buffer overflow 'mt9v111_frame_sizes' 5 <= 5
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Gets rid of this build warning:
drivers/media/platform/vsp1/vsp1_dl.c:229: warning: Function parameter or member 'cmdpool' not described in 'vsp1_dl_manager'
Fixes: f3b98e3c4d2e ("media: vsp1: Provide support for extended command pools")
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of hardcoding the remapping of IO_SPACE_LIMIT - SZ_64K, use
resource_size().
However, we cannot use just IO_SPACE_LIMIT, because pci_ioremap_io() has
a bug and doesn't allow remapping the last 64 KB before IO_SPACE_LIMIT,
so we ensure that we do not exceed this limit. When the pci_ioremap_io()
issue is fixed, this work around can be dropped.
Note that this workaround already existed, since we were mapping only
up to IO_SPACE_LIMIT - SZ_64K.
Suggested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[lorenzo.pieralisi@arm.com: tweaked the commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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If there is no PCI I/O aperture configured in the Device Tree, it does
not make sense to create the virtual mapping for the PCI I/O space,
since we will anyway not create the MBus window that will allow to
access it. Therefore, do the pci_ioremap_io() only if necessary.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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pcie->realio.end should be the address of last byte of the area,
therefore using resource_size() of another resource is not correct, we
must substract 1 to get the address of the last byte.
Fixes: 11be65472a427 ("PCI: mvebu: Adapt to the new device tree layout")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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This is already done earlier in mvebu_pcie_probe().
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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copy_complete()'s processing of out_of_order_list can result in
quadratic complexity in the worst case. As such it was the source of
consuming too much cpu and the source of significant loss in
performance.
Fix this by converting out_of_order_list to an rbtree. This improved
a dm-snapshot test copy workload from 32 seconds to 4 seconds.
Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Brett Hull <bhull@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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It was reported that softlockups occur when using dm-snapshot ontop of
slow (rbd) storage. E.g.:
[ 4047.990647] watchdog: BUG: soft lockup - CPU#10 stuck for 22s! [kworker/10:23:26177]
...
[ 4048.034151] Workqueue: kcopyd do_work [dm_mod]
[ 4048.034156] RIP: 0010:copy_callback+0x41/0x160 [dm_snapshot]
...
[ 4048.034190] Call Trace:
[ 4048.034196] ? __chunk_is_tracked+0x70/0x70 [dm_snapshot]
[ 4048.034200] run_complete_job+0x5f/0xb0 [dm_mod]
[ 4048.034205] process_jobs+0x91/0x220 [dm_mod]
[ 4048.034210] ? kcopyd_put_pages+0x40/0x40 [dm_mod]
[ 4048.034214] do_work+0x46/0xa0 [dm_mod]
[ 4048.034219] process_one_work+0x171/0x370
[ 4048.034221] worker_thread+0x1fc/0x3f0
[ 4048.034224] kthread+0xf8/0x130
[ 4048.034226] ? max_active_store+0x80/0x80
[ 4048.034227] ? kthread_bind+0x10/0x10
[ 4048.034231] ret_from_fork+0x35/0x40
[ 4048.034233] Kernel panic - not syncing: softlockup: hung tasks
Fix this by calling cond_resched() after run_complete_job()'s callout to
the dm_kcopyd_notify_fn (which is dm-snap.c:copy_callback in the above
trace).
Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Removed unused macro definitions as they add nothing to the code.
This is a coding style change which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add spaces around '+' operator as required by the coding standard.
This clears the checkpatch issue.
This change is purely coding style in nature and should have not
effect on runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove a comment which appears to be from a previous version of code.
This is a coding style change which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The header mp_custom_oid.h is not used, so remove it.
'git grep mp_custom_oid.h drivers/staging/rtl8188eu/'
returns nothing.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Puts spaces around the /.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes this functions to avoid using "blank" on debug twice. Improves log readability.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Erases some blank lines.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This nesting level was removed to improve readability.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of other "Gamma Tables" were already boxed on a define, just did the same to PIOLED.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adds a bit more information on debug.
The line break was to avoid obfuscating the parameters on the end of a large line.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes (most) alignment issues pointed by checkpatch.pl.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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issues - Style
Puts macro arguments in parenthesis to avoid precedence issues.
Some large lines were broken to fit the 80-char limit.
Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Array dB_Invert_Table is declared but not used, hence it is redundant
and can be removed.
Cleans up clang warning:
warning: ‘dB_Invert_Table’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace tabs with spaces and/or remove spaces where appropriate.
Add a missing blank line after declarations.
Also clears checkpatch warnings.
WARNING: Statements should start on a tabstop
WARNING: suspect code indent for conditional statements (8, 17)
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use is_multicast_ether_addr instead of custom IS_MCAST in
core/rtw_sta_mgt.c.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace tabs with spaces and/or remove spaces where appropriate.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cleanup a block comment to conform with kernel coding style.
Also cleans 'line over 80 characters' checkpatch warnings.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use is_multicast_ether_addr instead of custom IS_MCAST in
hal/rtl8188eu_xmit.c.
There is only one use, so remove the extra variable for the
result of IS_MCAST.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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