| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull aio updates from Ben LaHaise.
* git://git.kvack.org/~bcrl/aio-next:
aio: use iovec array rather than the single one
aio: fix some comments
aio: use the macro rather than the inline magic number
aio: remove the needless registration of ring file's private_data
aio: remove no longer needed preempt_disable()
aio: kill the misleading rcu read locks in ioctx_add_table() and kill_ioctx()
aio: change exit_aio() to load mm->ioctx_table once and avoid rcu_read_lock()
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Previously, we only offer a single iovec to handle all the read/write cases, so
the PREADV/PWRITEV request always need to alloc more iovec buffer when copying
user vectors.
If we use a tmp iovec array rather than the single one, some small PREADV/PWRITEV
workloads(vector size small than the tmp buffer) will not need to alloc more
iovec buffer when copying user vectors.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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The function comments of aio_run_iocb and aio_read_events are out of date, so
fix them here.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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Replace the inline magic number with the ready-made macro(AIO_RING_MAGIC),
just clean up.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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Remove the registration of ring file's private_data, we do not use
it.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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Based on feedback from Jens Axboe on 263782c1c95bbddbb022dc092fd89a36bb8d5577,
clean up get/put_reqs_available() to remove the no longer needed preempt_disable()
and preempt_enable() pair.
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: Jens Axboe <axboe@kernel.dk>
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ioctx_add_table() is the writer, it does not need rcu_read_lock() to
protect ->ioctx_table. It relies on mm->ioctx_lock and rcu locks just
add the confusion.
And it doesn't need rcu_dereference() by the same reason, it must see
any updates previously done under the same ->ioctx_lock. We could use
rcu_dereference_protected() but the patch uses rcu_dereference_raw(),
the function is simple enough.
The same for kill_ioctx(), although it does not update the pointer.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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On 04/30, Benjamin LaHaise wrote:
>
> > - ctx->mmap_size = 0;
> > -
> > - kill_ioctx(mm, ctx, NULL);
> > + if (ctx) {
> > + ctx->mmap_size = 0;
> > + kill_ioctx(mm, ctx, NULL);
> > + }
>
> Rather than indenting and moving the two lines changing mmap_size and the
> kill_ioctx() call, why not just do "if (!ctx) ... continue;"? That reduces
> the number of lines changed and avoid excessive indentation.
OK. To me the code looks better/simpler with "if (ctx)", but this is subjective
of course, I won't argue.
The patch still removes the empty line between mmap_size = 0 and kill_ioctx(),
we reset mmap_size only for kill_ioctx(). But feel free to remove this change.
-------------------------------------------------------------------------------
Subject: [PATCH v3 1/2] aio: change exit_aio() to load mm->ioctx_table once and avoid rcu_read_lock()
1. We can read ->ioctx_table only once and we do not read rcu_read_lock()
or even rcu_dereference().
This mm has no users, nobody else can play with ->ioctx_table. Otherwise
the code is buggy anyway, if we need rcu_read_lock() in a loop because
->ioctx_table can be updated then kfree(table) is obviously wrong.
2. Update the comment. "exit_mmap(mm) is coming" is the good reason to avoid
munmap(), but another reason is that we simply can't do vm_munmap() unless
current->mm == mm and this is not true in general, the caller is mmput().
3. We do not really need to nullify mm->ioctx_table before return, probably
the current code does this to catch the potential problems. But in this
case RCU_INIT_POINTER(NULL) looks better.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
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Pull more SCSI changes from James Bottomley:
"This is a small set of updates which missed the first pull. It's more
msix updates, some iscsi and qla4xxx fixes, we also have some string
null termination fixes a return value fix and a couple of pm8001
firmware fixes.
Just a note, we do have a couple of bug fixes coming under separate
cover, but they don't have to be part of the merge window"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
iscsi class: Fix freeing of skb in get host error path
scsi: fix u14-34f printk format warnings
pm8001: fix pm8001_store_update_fw
pm8001: Fix erratic calculation in update_flash
pm8001: Update MAINTAINERS list
libiscsi: return new error code when nop times out
iscsi class: fix get_host_stats return code when not supported
iscsi class: fix get_host_stats error handling
qla4xxx: fix get_host_stats error propagation
qla4xxx: check the return value of dma_alloc_coherent()
scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction with strncpy
scsi: qla4xxx: ql4_os.c: Cleaning up missing null-terminate in conjunction with strncpy
qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
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If get_host_stats failes we are using kfree to free the
skb. We should be using kfree_skb.
This patch was made over Christoph's scsi-queue drivers-for-3.17 branch.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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The current implementation may mix the negative value returned from
pm8001_set_nvmd with count. -(-ENOMEM) could be interpreted as bytes
programmed, this patch fixes it.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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The loopcount is calculated by using some weird magic. Use instead a boring
macro.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Update pmcs mail list for pm8001 driver support
Signed-off-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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When a iscsi nop as ping timedout we were failing with the
common connection error code, ISCSI_ERR_CONN_FAILED. This
patch adds a new error code for this problem so can properly
track/distinguish in userspace.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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When the get_host_stats call was not supported we were
returing EINVAL. This has us return ENOSYS, because for
software iscsi drivers where there is no host it is ok to not
have this callout.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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iscsi_get_host_stats was dropping the error code returned
by drivers like qla4xxx.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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qla4xxx was not always returning -EXYZ error codes when
qla4xxx_get_host_stats failed.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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the qla4xxx_alloc_fw_dump() calls dma_alloc_coherent() but does not
check its return value.
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-By: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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with strncpy
Replacing strncpy with strlcpy to avoid strings that lacks null terminate.
And in some cases modified to copy one character less than the overall
length, as the entire area is already zeroed.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Acked-By: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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with strncpy
Replacing strncpy with strlcpy to avoid strings that lacks null terminate.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Acked-By: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-By: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range() or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Reviewed-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Fix printk format warnings (seen on i386 builds):
../drivers/scsi/u14-34f.c: In function 'port_detect':
../drivers/scsi/u14-34f.c:630:28: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'u64' [-Wformat=]
../drivers/scsi/u14-34f.c: In function 'u14_34f_queuecommand_lck':
../drivers/scsi/u14-34f.c:1290:25: warning: format '%llu' expects argument of type 'long long unsigned int', but argument 6 has type 'int' [-Wformat=]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"Second round of updates for the input subsystem. Mostly small fixups
to the code merged in the first round (atmel_mxt_ts, wacom) but also a
smallish patch to xbox driver to support Xbox One controllers and a
patch to better handle Synaptics profile sensors found in Cr-48
Chromebooks that should not affect any other devices"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: edt-ft5x06 - remove superfluous assignment
Input: xpad - add support for Xbox One controllers
Input: atmel_mxt_ts - fix a few issues reported by Coverity
Input: atmel_mxt_ts - split config update a bit
Input: atmel_mxt_ts - simplify mxt_initialize a bit
Input: joystick - use get_cycles on ARMv8
Input: wacom - fix compiler warning if !CONFIG_PM
Input: cap1106 - allow changing key mapping from userspace
Input: synaptics - use firmware data for Cr-48
Input: synaptics - properly initialize slots for semi-MT
Input: MT - make slot cleanup callable outside mt_sync_frame()
Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA
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Prepare second round of input updates for 3.17.
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Somehow we ended up with a duplicate line in edt_ft5x06_register_write()
Signed-off-by: Maks Naumov <maksqwe1@ukr.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Xbox One controllers require an initialization message to start sending
data, so xpad_init_output becomes a required function. The Xbox One
controller does not have LEDs like the Xbox 360 controller, so that
functionality is not implemented. The format of messages controlling rumble
is currently undocumented, so rumble support is not yet implemented.
Note that Xbox One controller advertises three interfaces with the same
interface class, subclass and protocol, so we have to also match against
interface number.
Signed-off-by: Ted Mielczarek <ted@mielczarek.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This should fix the following issues reported by Coverity:
*** CID 1230625: Logically dead code (DEADCODE)
/drivers/input/touchscreen/atmel_mxt_ts.c: 1692 in mxt_initialize()
*** CID 1230627: Missing break in switch (MISSING_BREAK)
/drivers/input/touchscreen/atmel_mxt_ts.c: 1436 in mxt_get_object_table()
*** CID 1230629: Out-of-bounds write (OVERRUN)
/drivers/input/touchscreen/atmel_mxt_ts.c: 1267 in mxt_update_cfg()
*** CID 1230632: Unused pointer value (UNUSED_VALUE)
/drivers/input/touchscreen/atmel_mxt_ts.c: 1211 in mxt_update_cfg()
Acked-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Let's split config update code a bit so it is hopefully a bit easier to
read. Also, the firmware update callback should be the entity releasing
firmware blob, not lower layers.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
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I think having control flow with 2 goto/labels/flags is quite hard to read,
this version is a bit more readable IMO.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
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Wire up support for EVIOC{G|S}KEYCODE to allow users change key mappings
from userspace.
Reviewed-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The profile sensor clickpad in a Cr-48 Chromebook does a reasonable job
of tracking individual fingers. This tracking isn't perfect, but,
experiments show that it works better than just passing "semi-mt" data
to userspace, and making userspace try to deduce where the fingers are
given a bounding box.
This patch tries to report correct two-finger positions instead of the
{(min_x, min_y), (max_x, max_y)} for profile sensor clickpads on Cr-48
chromebooks. Note that this device's firmware always reports the higher
(smaller y) finger in the "sgm" packet, and the lower (larger y) finger
in the "agm" packet. Thus, when a new finger arrives on the pad, the
kernel driver uses input core's contact tracking facilities to match
contacts with slots.
Inspired by patch by Daniel Kurtz <djkurtz@chromium.org> and Chung-yih
Wang <cywang@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Semi-MT devices are pointers too, so let's tell that to
input_mt_init_slots(), as well as let it set up the devices as semi-MT,
instead of us doing it manually.
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Some semi-mt drivers use the slots in a manual way, but may still
want to call parts of the frame synchronization logic. This patch
makes input_mt_drop_unused callable from those drivers.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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As with ARM the ARMv8 architecture provides a cycle counter which can be
used to provide a high resolution time for the joystick driver and
silence the build warning that results from not having a precise timer
on ARMv8, making allmodconfig and allyesconfig quieter.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If CONFIG_PM is not set:
drivers/hid/wacom_sys.c:1436: warning: ‘wacom_reset_resume’ defined but
not used
Protect the unused functions by #ifdef CONFIG_PM to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here is the additional fix patches that have been queued up since the
previous pull request. A few HD-audio fixes, a USB-audio quirk
addition, and a couple of trivial cleanup for the legacy OSS codes"
* tag 'sound-fix-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Set TLV_DB_SCALE_MUTE bit for cx5051 vmaster
ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
ALSA: hda - Fix pop noises on reboot for Dell XPS 13 9333
ALSA: hda - Set internal mic as default input source on Dell XPS 13 9333
ALSA: usb-audio: fix BOSS ME-25 MIDI regression
ALSA: hda - Fix parsing of CMI8888 codec
ALSA: hda - Fix probing and stuttering on CMI8888 HD-audio controller
ALSA: hda/realtek - Fixed ALC286/ALC288 recording delay for Headset Mic
sound: oss: Remove typedefs wanc_info and wavnc_port_info
sound: oss: uart401: Remove typedef uart401_devc
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Conexnat HD-audio driver has a workaround for cx5051 (aka CX20561)
chip to add fake mute controls to each amp (commit 3868137e). This
implies the minimum-as-mute TLV bit in TLV for each corresponding
control. Meanwhile we build the virtual master from these, but the
TLV bit is missing, even though the slaves have it.
This patch simply adds the missing TLV_DB_SCALE_MUTE bit for vmaster,
as already done in patch_sigmatel.c.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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CA0132 driver tries to reload the firmware at resume. Usually this
works since the firmware loader core caches the firmware contents by
itself. However, if the driver failed to load the firmwares
(e.g. missing files), reloading the firmware at resume goes through
the actual file loading code path, and triggers a kernel WARNING like:
WARNING: CPU: 10 PID:11371 at drivers/base/firmware_class.c:1105 _request_firmware+0x9ab/0x9d0()
For avoiding this situation, this patch makes CA0132 skipping the f/w
loading at resume when it failed at probe time.
Reported-and-tested-by: Janek Kozicki <cosurgi@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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If nid 0x15 (Headphone Playback Switch) is in D3 and headphones are
plugged in when the laptop reboots, a pop noise is generated.
Prevent this by keeping nid 0x15 in D0 when headphones are plugged in.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=76611
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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If the laptop is powered on with a jack plugged in, independently on what
is plugged, the jack is treated as a microphone jack.
Initialize the capture source so that by default jacks are treated as
headphones jacks. This will also prevent pop noises on boot in case
headphones are plugged in since setting/unsetting mic-in as input source
causes a pop noise.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=76611
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The BOSS ME-25 turns out not to have any useful descriptors in its MIDI
interface, so its needs a quirk entry after all.
Reported-and-tested-by: Kees van Veen <kees.vanveen@gmail.com>
Fixes: 8e5ced83dd1c ("ALSA: usb-audio: remove superfluous Roland quirks")
Cc: <stable@vger.kernel.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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CMI8888 codec chip has a boost amp (only) on the headphone pin, and
this confuses the generic parser, which tends to pick up the most
outside amp. This results in the wrong volume setup, as the driver
complains like:
hda_codec: Mismatching dB step for vmaster slave (-100!=1000)
For avoiding this problem, rule out the amp on NID 0x10 and create
"Headphone Amp" volume control manually instead.
Note that this patch still doesn't fix all problems yet. The sound
output from the line out seems still too low. It will be fixed in
another patch (hopefully).
Reported-and-tested-by: Vincent Lejeune <vljn@ovi.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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ASUS Phoebus with CMI8888 HD-audio chip (PCI id 13f6:5011) doesn't
work with HD-audio driver as is because of some weird nature. For
making DMA properly working, we need to disable MSI. The position
report buffer doesn't work, thus we need to force reading LPIB
instead. And yet, the codec CORB/RIRB communication gives errors
unless we disable the snooping (caching).
In this patch, all these workarounds are added as a quirk for the
device. The HD-audio *codec* chip needs yet another workaround, but
it'll be provided in the succeeding patch.
Reported-and-tested-by: Vincent Lejeune <vljn@ovi.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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It will be recording voice delay for resume back recording for Headset Mic.
This alc286 will quickly open Headset Mic, to prevent avoid recording files are missing.
The issue was fixed. This is follow ALC286 programing guide.
[fix build error, add static and renamed the function by tiwai]
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The Linux kernel coding style guidelines suggest not using typedefs
for structure types. This patch gets rid of the typedefs for wanc_info and
wavnc_port_info.
A simplified version of the Coccinelle semantic patch that finds the case is:
@tn@
identifier i;
type td;
@@
-typedef
struct i { ... }
-td
;
@@
type tn.td;
identifier tn.i;
@@
-td
+ struct i
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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