| Commit message (Collapse) | Author | Age | Files | Lines |
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When a replacement operation completes there is a small window
when the original device is marked 'faulty' and the replacement
still looks like a replacement. The faulty should be removed and
the replacement moved in place very quickly, bit it isn't instant.
So the code write out to the array must handle the possibility that
the only working device for some slot in the replacement - but it
doesn't. If the primary device is faulty it just gives up. This
can lead to corruption.
So make the code more robust: if either the primary or the
replacement is present and working, write to them. Only when
neither are present do we give up.
This bug has been present since replacement was introduced in
3.3, so it is suitable for any -stable kernel since then.
Reported-by: "George Spelvin" <linux@horizon.com>
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
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commit 9e44476851e91c86c98eb92b9bc27fb801f89072
MD: raid5 avoid unnecessary zero page for trim
change raid5 to clear R5_Discard when the complete request is
handled rather than when submitting the per-device discard request.
However it did not clear R5_Discard for the parity device.
This means that if the stripe_head was reused before it expired from
the cache, the setting would be wrong and a hang would result.
Also if the R5_Uptodate bit happens to be set, R5_Discard again
won't be cleared. But R5_Uptodate really should be clear at this point.
So make sure R5_Discard is cleared in all cases, and clear
R5_Uptodate when a 'discard' completes.
Signed-off-by: NeilBrown <neilb@suse.de>
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stripe_handle.
The chunk of code in stripe_handle which responds to a
*_result value in reconstruct_state is really the completion
of some processing that happened outside of handle_stripe
(possibly asynchronously) and so should be one of the first
things done in handle_stripe().
After the next patch it will be important that it happens before
handle_stripe_clean_event(), as that will clear some dev->flags
bit that this code tests.
Signed-off-by: NeilBrown <neilb@suse.de>
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blkdev_issue_discard currently assumes that the granularity
is a power of 2. So in raid5, round the chosen number up to
avoid embarrassment.
Cc: Shaohua Li <shli@kernel.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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md_stop() would stop an array, but not free various attached
data structures.
For internal arrays, these are freed later in do_md_stop() or
mddev_put(), but they don't apply for dm-raid arrays.
So get md_stop() to free them, and only all it from dm-raid.
For internal arrays we now call __md_stop.
Reported-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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If read_seqretry returned true and bbp was changed, it will write
invalid address which can cause some serious problem.
This bug was introduced by commit v3.0-rc7-130-g2699b67.
So fix is suitable for 3.0.y thru 3.6.y.
Reported-by: zhuwenfeng@kedacom.com
Tested-by: zhuwenfeng@kedacom.com
Cc: stable@vger.kernel.org
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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md_is_badblock.
This bug was introduced by commit(v3.0-rc7-126-g2230dfe).
So fix is suitable for 3.0.y thru 3.6.y.
Cc: stable@vger.kernel.org
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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Pull block layer fixes from Jens Axboe:
"Distilled down version of bug fixes for 3.7. The patches have been
well tested. If you notice that commit dates are from today, it's
because I pulled less important bits out and shuffled them into the
3.8 mix. Apart from that, no changes, base still the same.
It contains:
- Fix for aoe, don't run request_fn while it's plugged.
- Fix for a regression in floppy since 3.6, which causes problems if
no floppy is found.
- Stable fix for blk_exec(), don't touch a request after it has been
sent to the scheduler (and the device as well).
- Five fixes for various nasties in mtip32xx."
* 'for-linus' of git://git.kernel.dk/linux-block:
block: Don't access request after it might be freed
mtip32xx: Fix padding issue
aoe: avoid running request handler on plugged queue
mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function()
mtip32xx: fix shift larger than type warning
mtip32xx: Fix incorrect mask used for erase mode
mtip32xx: Fix to make lba address correct in big-endian systems
mtip32xx: fix potential crash on SEC_ERASE_UNIT
dm: fix deadlock with request based dm and queue request_fn recursion
floppy: destroy floppy workqueue before cleaning up the queue
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After we've done __elv_add_request() and __blk_run_queue() in
blk_execute_rq_nowait(), the request might finish and be freed
immediately. Therefore checking if the type is REQ_TYPE_PM_RESUME
isn't safe afterwards, because if it isn't, rq might be gone.
Instead, check beforehand and stash the result in a temporary.
This fixes crashes in blk_execute_rq_nowait() I get occasionally when
running with lots of memory debugging options enabled -- I think this
race is usually harmless because the window for rq to be reallocated
is so small.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Hi Jens,
Another tiny patch.
Removed __packed before the struct smart_attr and added __packed at end of
the structure to fix padding issue.
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Calling the request handler directly on a plugged queue defeats
the performance improvements provided by the plugging mechanism.
Use the __blk_run_queue function instead of calling the request
handler directly, so that we don't interfere with the block
layer's ability to plug the queue.
Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The dereference to port should be moved below the NULL test.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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If we're building a 32-bit kernel and CONFIG_LBADF isn't set,
sector_t is 32-bits wide. The shifts by 32 and 40 are thus
larger than we support.
Cast the sector offset to a u64 to avoid these warnings.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Previous commit use value 3 for erasemode mask.
Changing the mask to correct value to 2
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Earlier lba address was assigned directly to lba_low and lba_low_ex,
which would result in a different number (bytes reversed) in
big-endian systems. Now assigning lba address byte-by-byte to fis.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The mtip driver lifted this code from elsewhere and then added a special
handling check for SEC_ERASE_UNIT. If the caller tries to do a security
erase but passes no output data for the command then outbuf is not
allocated and the driver duly explodes.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Request based dm attempts to re-run the request queue off the
request completion path. If used with a driver that potentially does
end_io from its request_fn, we could deadlock trying to recurse
back into request dispatch. Fix this by punting the request queue
run to kblockd.
Tested to fix a quickly reproducible deadlock in such a scenario.
Cc: stable@kernel.org
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We need to first destroy the floppy_wq workqueue before cleaning up
the queue. Otherwise we might race with still pending work with the
workqueue, but all the block queue already gone. This might lead to
various oopses, such as
CPU 0
Pid: 6, comm: kworker/u:0 Not tainted 3.7.0-rc4 #1 Bochs Bochs
RIP: 0010:[<ffffffff8134eef5>] [<ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
RSP: 0000:ffff88000dc7dd88 EFLAGS: 00010092
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88000f602688 RSI: ffffffff81fd95d8 RDI: 6b6b6b6b6b6b6b6b
RBP: ffff88000dc7dd98 R08: ffffffff81fd95c8 R09: 0000000000000000
R10: ffffffff81fd9480 R11: 0000000000000001 R12: 6b6b6b6b6b6b6b6b
R13: ffff88000dc7dfd8 R14: ffff88000dc7dfd8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffffffff81e21000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000001e11000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/u:0 (pid: 6, threadinfo ffff88000dc7c000, task ffff88000dc5ecc0)
Stack:
0000000000000000 0000000000000000 ffff88000dc7ddb8 ffffffff8134efee
ffff88000dc7ddb8 0000000000000000 ffff88000dc7dde8 ffffffff814aef3c
ffffffff81e75d80 ffff88000dc0c640 ffff88000fbfb000 ffffffff814aed90
Call Trace:
[<ffffffff8134efee>] blk_fetch_request+0xe/0x30
[<ffffffff814aef3c>] redo_fd_request+0x1ac/0x400
[<ffffffff814aed90>] ? start_motor+0x130/0x130
[<ffffffff8106b526>] process_one_work+0x136/0x450
[<ffffffff8106af65>] ? manage_workers+0x205/0x2e0
[<ffffffff8106bb6d>] worker_thread+0x14d/0x420
[<ffffffff8106ba20>] ? rescuer_thread+0x1a0/0x1a0
[<ffffffff8107075a>] kthread+0xba/0xc0
[<ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
[<ffffffff818b553a>] ret_from_fork+0x7a/0xb0
[<ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
Code: 0f 84 c0 00 00 00 83 f8 01 0f 85 e2 00 00 00 81 4b 40 00 00 80 00 48 89 df e8 58 f8 ff ff be fb ff ff ff
fe ff ff <49> 8b 1c 24 49 39 dc 0f 85 2e ff ff ff 41 0f b6 84 24 28 04 00
RIP [<ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
RSP <ffff88000dc7dd88>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Pull omapdss fixes from Tomi Valkeinen:
"Here are a few OMAPDSS fixes for the next -rc. I'm sending these
directly to you, and quite late, as the fbdev tree maintainer
(Florian) has been busy with his work and hasn't had time to manage
the fb patches."
* tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux:
OMAPDSS: do not fail if dpll4_m4_ck is missing
OMAPFB: Fix possible null pointer dereferencing
OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs()
omapdss: dss: Fix clocks on OMAP363x
OMAPDSS: DSI: fix dsi_get_dsidev_from_id()
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Do not fail if dpll4_m4_ck is missing. The clock is not there on omap24xx,
so this should not be a hard error.
The patch retains the functionality before the commit 185bae10 (OMAPDSS:
DSS: Cleanup cpu_is_xxxx checks).
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Commit 952cbaaa9b8beacc425f9aedf370468cbb737a2c (OMAPFB: Change
dssdev->manager references) added checks for OMAPFB_WAITFORVSYNC ioctl
to verify that the display, output and overlay manager exist. However,
the code erroneously uses && for each part, which means that
OMAPFB_WAITFORVSYNC may crash the kernel if no display, output or
manager is associated with the framebuffer.
This patch fixes the issue by using ||.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Add the missing unlock on the error handling path in function
hdmi_dump_regs().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Commit 185bae1095188aa199c9be64d6030d8dbfc65e0a ("OMAPDSS: DSS: Cleanup
cpu_is_xxxx checks") broke the DSS clocks configuration by erroneously
using the clock parameters applicable to all other OMAP34xx SoCs for the
OMAP363x. This went unnoticed probably because the cpu_is_omap34xx()
class check wasn't seen as matching the OMAP363x subclass.
Fix it by checking for the OMAP363x subclass before checking for the
OMAP34xx class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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If dsi_get_dsidev_from_id() is called with a DSI module id that does not
exist on the board, the function will crash as omap_dss_get_output()
will return NULL.
This happens on omap3 boards when dumping DSI clocks, as the dumping
code will try to get the dsidev for DSI modules 0 and 1, but omap3 only
has DSI module 0.
Also clean up the id -> output mapping, so that if the function is
called with invalid module ID it will return NULL.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Archit Taneja <archit@ti.com>
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git://git.pengutronix.de/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Bugfixes for the i2c subsystem.
Except for a few one-liners, there is mainly one revert because of an
overlooked dependency. Since there is no linux-next at the moment, I
did some extra testing, and all was fine for me."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: mxs: Handle i2c DMA failure properly
i2c: s3c2410: Fix code to free gpios
i2c: omap: ensure writes to dev->buf_len are ordered
Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints"
i2c: at91: fix SMBus quick command
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Properly terminate the DMA transfer in case the DMA PIO transfer
or setup fails for any reason.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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Store the requested gpios so that they can be freed on error/removal.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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if we allow compiler reorder our writes, we could
fall into a situation where dev->buf_len is reset
for no apparent reason.
This bug was found with a simple script which would
transfer data to an i2c client from 1 to 1024 bytes
(a simple for loop), when we got to transfer sizes
bigger than the fifo size, dev->buf_len was reset
to zero before we had an oportunity to handle XDR
Interrupt. Because dev->buf_len was zero, we entered
omap_i2c_transmit_data() to transfer zero bytes,
which would mean we would just silently exit
omap_i2c_transmit_data() without actually writing
anything to DATA register. That would cause XDR
IRQ to trigger forever and we would never transfer
the remaining bytes.
After adding the memory barrier, we also drop resetting
dev->buf_len to zero in omap_i2c_xfer_msg() because
both omap_i2c_transmit_data() and omap_i2c_receive_data()
will act until dev->buf_len reaches zero, rendering the
other write in omap_i2c_xfer_msg() redundant.
This patch has been tested with pandaboard for a few
iterations of the script mentioned above.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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This reverts commit 3db11feffc1ad2ab9dea27789e6b5b3032827adc
(ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints).
This commit causes I2C timeouts to appear on several OMAP3430/3530-based
boards:
http://marc.info/?l=linux-arm-kernel&m=135071372426971&w=2
http://marc.info/?l=linux-arm-kernel&m=135067558415214&w=2
http://marc.info/?l=linux-arm-kernel&m=135216013608196&w=2
and appears to have been sent for merging before one of its prerequisites
was merged:
http://marc.info/?l=linux-arm-kernel&m=135219411617621&w=2
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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The driver claims to support SMBus quick command but it was not the
case. This patch fixes this issue. Without it, i2cdetect finds imaginary
devices. And with some IP versions, trying to send 0 byte can cause
issue when writing data to an EEPROM.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
[wsa: improved the commit message]
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The highlight of this update is the fixes for ASoC kirkwood by
Russell. In addition to that, a couple of regression fixes for
HD-audio due to the runtime PM support on 3.7, and other driver-
specific regression fixes like USB MIDI on non-standard USB audio
drivers."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: snd-usb: properly initialize the sync endpoint
ALSA: hda - Cirrus: Correctly clear line_out_pins when moving to speaker
ALSA: hda - Add support for Realtek ALC292
ASoC: kirkwood-i2s: more pause-mode fixes
ASoC: kirkwood-i2s: fix DMA underruns
ASoC: kirkwood-i2s: fix DCO lock detection
ASoC: kirkwood-dma: don't ignore other irq causes on error
ASoC: kirkwood-dma: fix use of virt_to_phys()
ALSA: hda - Limit runtime PM support only to known Intel chips
ALSA: hda - Fix recursive suspend/resume call
ALSA: ua101, usx2y: fix broken MIDI output
ASoC: arizona: Fix typo - Swap value in 48k_rates[] and 44k1_rates[]
ASoC: bells: Fix up git patch application failure
ASoC: cs4271: free allocated GPIO
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Jeffrey Barish reported an obvious bug in the pcm part of the usb-audio
driver which causes the code to not initialize the sync endpoint from
configure_endpoint().
Reported-by: Jeffrey Barish <jeff_barish@earthlink.net>
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: stable@kernel.org [3.5+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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If this array is not cleared, the jack related code later might
fail to create "Internal Speaker Phantom Jack" on Dell Inspiron 3420 and
Dell Vostro 2420.
BugLink: https://bugs.launchpad.net/bugs/1076840
Cc: stable@vger.kernel.org (3.6+)
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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We found a new codec ID 292, and that just a simple quirk would enable
sound output/input on this ALC292 chip.
BugLink: https://bugs.launchpad.net/bugs/1081466
Cc: stable@vger.kernel.org
Tested-by: Acelan Kao <acelan.kao@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.7
The biggest batch of fixes here is the Kirkwood DMA fixes, plus a couple
of other small fixes.
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of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into tmp
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It seems git has been getting confused by the very similar contexts
for the speaker DAIs and has been applying patches to the wrong places
causing all sorts of confusion. Fix this up by hand.
Reported-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Don't even momentarily set the pause status when starting the channel;
if we do, we should check the busy bit to ensure that we comply with
the spec. In any case, it isn't necessary; we will not active on a
START event so there is no need to pause the DMA.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Stress testing the driver with multiple start/stop events causes
kirkwood-dma to report underrun errors (which used to cause the kernel
to lock up solidly). This is because kirkwood-i2s is not respecting
the restrictions imposed on clearing the 'pause' bit. Follow what the
spec says; the busy bit must be read as being clear twice before the
pause bit can be released. This solves the underruns.
However, it has been noticed that the busy bit occasionally does not
clear itself, hence the waiting is bounded to 5ms maximum to avoid a
new reason for the kernel to lockup.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This is part of a patch found in Rabeeh Khoury's git tree for the
cubox, which is further attributed to Sebastian Hesselbrath.
Rather than masking the KIRKWOOD_DCO_SPCR_STATUS register contents
against the registers virtual address, let's actually use the bit
definition for the locked status, as required in the documentation.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Ignoring the real cause of the interrupt is not a good idea; this
behaviour has been observed to bring Dove platforms to silently
lockup. Instead, on error fall through to the normal interrupt
processing.
This is especially important on Dove platforms as errors are
handled separately, and allows us to clear down the real cause of
the interrupt.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This is part of a patch found in Rabeeh Khoury's git tree for the
cubox.
You can not use virt_to_phys() on the address returned from
dma_alloc_coherent(); it may not be part of the kernel direct-mapped
memory. Fix this to use the DMA address instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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In case of probe deferral, the allocated GPIO line is not freed, which
prevents it from being claimed and properly asserted in later attempts.
Fix this by using devm_gpio_request().
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Michael Hirsch <hirsch@teufel.de>
Cc: Alexander Sverdlin <subaparts@yandex.ru>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
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We've got a report that the runtime PM may make the codec the
unresponsive on AMD platforms. Since the feature has been tested only
on the recent Intel platforms, it's safer to limit the support to such
devices for now.
This patch adds a new DCAPS bit flag indicating the runtime PM
support, and mark it for Intel controllers.
Reported-and-tested-by: Julian Wollrath <jwollrath@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When the bus reset is performed during the suspend/resume (including
the power-saving too), it calls snd_hda_suspend() and
snd_hda_resume() again, and deadlocks eventually.
For avoiding the recursive call, add a new flag indicating that the PM
is being performed, and don't go to the bus reset mode when it's on.
Reported-and-tested-by: Julian Wollrath <jwollrath@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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into for-linus
Merge a regression fix for USB MIDI on non-standard usb-audio drivers
by Clemens.
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Commit 88a8516a2128 (ALSA: usbaudio: implement USB autosuspend) added
autosuspend code to all files making up the snd-usb-audio driver.
However, midi.c is part of snd-usb-lib and is also used by other
drivers, not all of which support autosuspend. Thus, calls to
usb_autopm_get_interface() could fail, and this unexpected error would
result in the MIDI output being completely unusable.
Make it work by ignoring the error that is expected with drivers that do
not support autosuspend.
Reported-by: Colin Fletcher <colin.m.fletcher@googlemail.com>
Reported-by: Devin Venable <venable.devin@gmail.com>
Reported-by: Dr Nick Bailey <nicholas.bailey@glasgow.ac.uk>
Reported-by: Jannis Achstetter <jannis_achstetter@web.de>
Reported-by: Rui Nuno Capela <rncbc@rncbc.org>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: 2.6.39+ <stable@vger.kernel.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
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Pull networkign fixes from David Miller:
"Networking bug fixes, Cacio e Pepe edition:
1) BNX2X accidently accesses chip rev specific registers without an
appropriate guard, fix from Ariel Elior.
2) When we removed the routing cache, we set ip_rt_max_size to ~0 just
to keep reporting a value to userspace via sysfs. But the ipv4
IPSEC layer was using this to tune itself which is completely bogus
to now do. Fix from Steffen Klassert.
3) Missing initialization in netfilter ipset code from Jozsef
Kadlecsik.
4) Check CTA_TIMEOUT_NAME length properly in netfilter cttimeout code,
fix from Florian Westphal.
5) After removing the routing cache, we inadvertantly are caching
multicast routes that end up looping back locally, we cannot do
that legitimately any more. Fix from Julian Anastasov.
6) Revert a race fix for 8139cp qemu/kvm that doesn't actually work
properly on real hardware. From Francois Romieu.
7) Fixup errors in example command lines in VXLAN device docs."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
bnx2x: remove redundant warning log
vxlan: fix command usage in its doc
8139cp: revert "set ring address before enabling receiver"
ipv4: do not cache looped multicasts
netfilter: cttimeout: fix buffer overflow
netfilter: ipset: Fix range bug in hash:ip,port,net
xfrm: Fix the gc threshold value for ipv4
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fix bug where a register which was only meant to be read in 578xx/57712
devices causes a bogus error message to be logged when read from other
devices.
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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