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It's an atomic_t and the code accesses the "counter" field in it directly
instead of using atomic_read(). It also is sometimes accessed under a
spinlock and sometimes not. Move it out of the spinlock since we don't need
belt-and-suspenders for something that's just informational.
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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The cifsSesInfo pointer is only used to get at the server.
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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The TCP_Server_Info is refcounted and every SMB session holds a
reference to it. Thus, smb_ses_list is always going to be empty when
cifsd is coming down. This is dead code.
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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If CIFSSMBWrite2 returns -EAGAIN, then the error should be considered
temporary. CIFS should retry the write instead of setting an error on
the mapping and returning.
For WB_SYNC_ALL, just retry the write immediately. In the WB_SYNC_NONE
case, call redirty_page_for_writeback on all of the pages that didn't
get written out and then move on.
Also, fix up the handling of a short write with a successful return
code. MS-CIFS says that 0 bytes_written means ENOSPC or EFBIG. It
doesn't mention what a short, but non-zero write means, so for now
treat it as we would an -EAGAIN return.
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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When we get oplock break notification we should set the appropriate
value of OplockLevel field in oplock break acknowledge according to
the oplock level held by the client in this time. As we only can have
level II oplock or no oplock in the case of oplock break, we should be
aware only about clientCanCacheRead field in cifsInodeInfo structure.
Also fix bug connected with wrong interpretation of OplockLevel field
during oplock break notification processing.
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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The NODELAY flag avoids the heuristics that delay cap (issued/wanted)
release. There's no reason for that after we import a cap, and it kills
whatever benefit we get from those delays.
Signed-off-by: Sage Weil <sage@newdream.net>
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If we are mid-flush and a cap is migrated to another node, we need to
resend the cap flush message to the new MDS, and do so with the original
flush_seq to avoid leaking across a sync boundary. Previously we didn't
redo the flush (we only flushed newly dirty data), which would cause a
later sync to hang forever.
Signed-off-by: Sage Weil <sage@newdream.net>
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The int flushing is global and not clear on each iteration of the loop,
which can cause a second flush of caps to any MDSs with ids greater than
the auth.
Signed-off-by: Sage Weil <sage@newdream.net>
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These were initialized to 0 instead of the default, fallout from the RBD
refactor in 3d14c5d2b6e15c21d8e5467dc62d33127c23a644.
Signed-off-by: Sage Weil <sage@newdream.net>
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The conn->sec_level value is supposed to represent the current level of
security that the connection has. However, by assigning to it before
requesting authentication it will have the wrong value during the
authentication procedure. To fix this a pending_sec_level variable is
added which is used to track the desired security level while making
sure that sec_level always represents the current level of security.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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When there is an existing connection l2cap_check_security needs to be
called to ensure that the security level of the new socket is fulfilled.
Normally l2cap_do_start takes care of this, but that function doesn't
get called for SOCK_RAW type sockets. This patch adds the necessary
l2cap_check_security call to the appropriate branch in l2cap_do_connect.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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The logic for determining the needed auth_type for an L2CAP socket is
rather complicated and has so far been duplicated in
l2cap_check_security as well as l2cap_do_connect. Additionally the
l2cap_check_security code was completely missing the handling of
SOCK_RAW type sockets. This patch creates a unified function for the
evaluation and makes l2cap_do_connect and l2cap_check_security use that
function.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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If an existing connection has a MITM protection requirement (the first
bit of the auth_type) then that requirement should not be cleared by new
sockets that reuse the ACL but don't have that requirement.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This reverts commit 045309820afe047920a50de25634dab46a1e851d. That
commit is wrong for two reasons:
- The conn->sec_level shouldn't be updated without performing
authentication first (as it's supposed to represent the level of
security that the existing connection has)
- A higher auth_type value doesn't mean "more secure" like the commit
seems to assume. E.g. dedicated bonding with MITM protection is 0x03
whereas general bonding without MITM protection is 0x04. hci_conn_auth
already takes care of updating conn->auth_type so hci_connect doesn't
need to do it.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Fix a bug introduced in commit 9cf5b0ea3a7f1432c61029f7aaf4b8b338628884:
function rfcomm_recv_ua calls rfcomm_session_put without checking that
the session is not referenced by some DLC. If the session is freed, that
DLC would refer to deallocated memory, causing an oops later, as shown
in this bug report: https://bugzilla.kernel.org/show_bug.cgi?id=15994
Signed-off-by: Lukas Turek <8an@praha12.net>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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The blacklist should be freed before the hci device gets unregistered.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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CC: Marcel Holtmann <marcel@holtmann.org>
CC: "Gustavo F. Padovan" <padovan@profusion.mobi>
CC: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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There is no need to hold the firmware in memory.
Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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sound/pci/hda/patch_realtek.c: In function ‘alc_apply_fixup’:
sound/pci/hda/patch_realtek.c:1724:14: warning: unused variable ‘modelname’
snd_printdd() is evaluated only when CONFIG_SND_DEBUG_VERBOSE=y.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Commit a4f740cf, "of/flattree: Add of_flat_dt_match() helper function"
introduced build failures in arch/powerpc/platform/83xx by mistyping
'static' as 'struct' in the compatible string list, and omitting a few
semicolons. This patch fixes it.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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It seems working well with model=hp-bpc.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When the lirc drivers were converted over to using memdup_user, I
mistakenly also removed corresponding calls to kfree. Add those back. I
also screwed up on the allocation error check in lirc_serial, using if
(PTR_ERR()) instead of if (IS_ERR()), which broke transmit.
Reported-by: Jiri Fojtasek <jiri.fojtasek@hlohovec.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The current hdpvr code kmalloc's a new buffer for every i2c read and
write. Rather than do that, lets allocate a buffer in the driver's
device struct and just use that every time.
The size I've chosen for the buffer is the maximum size I could
ascertain might be used by either ir-kbd-i2c or lirc_zilog, plus a bit
of padding (lirc_zilog may use up to 100 bytes on tx, rounded that up
to 128).
Note that this might also remedy user reports of very sluggish behavior
of IR receive with hdpvr hardware.
v2: make sure (len <= (dev->i2c_buf)) [Jean Delvare]
Reported-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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A number of things going on here, but the end result is that the IR part
on the hdpvr gets enabled, and can be used with ir-kbd-i2c and/or
lirc_zilog.
First up, there are some conditional build fixes that come into play
whether i2c is built-in or modular. Second, we're swapping out
i2c_new_probed_device() for i2c_new_device(), as in my testing, probing
always fails, but we *know* that all hdpvr devices have a z8 chip at
0x70 and 0x71. Third, we're poking at an i2c address directly without a
client, and writing some magic bits to actually turn on this IR part
(this could use some improvement in the future). Fourth, some of the
i2c_adapter storage has been reworked, as the existing implementation
used to lead to an oops following i2c changes c. 2.6.31.
Earlier editions of this patch have been floating around the 'net for a
while, including being patched into Fedora kernels, and they *do* work.
This specific version isn't yet tested, beyond loading ir-kbd-i2c and
confirming that it does bind to the RX address of the hdpvr.
[mchehab@redhat.com: I2C_CLASS_TV_ANALOG is not defined. Fix compilation bug]
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes an egregious bug in mceusb driver, where the receiver was being
put into idle mode far sooner than it should have, thanks to storing a
timeout value that in us where it should be ns. Basically, the receiver
kept going into idle mode before a trailing space had been fully
received, which was causing problems for some protocols, most notably
manifesting as lirc userspace never receiving a trailing space for any
rc5 signals.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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fix wrong value in wm8994_set_tristate func. when updating reg bits,
it should use "value", not "reg".
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
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In the wm8995_set_tristate() function when updating the register
bits use the value and not the register index as the value argument.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
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Fix a bug in v4l2_device_unregister where the sd pointer can be dereferenced
after it was freed.
Normally the i2c adapter is removed before this function is called. Removing
the adapter will also unregister all subdevs on that adapter, so generally
v4l2_device_unregister has nothing to do. However, in the case of a platform
i2c bus that bus is generally not freed.
In that case, after freeing the i2c subdevice the code will fall into the
second block when it tests if the subdev is a SPI device. But by that time
the subdev is already freed and the kernel oopses.
The fix is trivial: continue with the loop after freeing the i2c or spi
subdevice.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reported-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Zeroing video_device.dev causes a memory leak if video_set_drvdata
was called before video_register_device was called. video_set_drvdata
calls dev_set_drvdata which allocates video_device.dev.p.
memsetting this will prevent freeing of that memory.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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After a detach zero the whole device state to ensure a clean slate
on the next attach.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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v4l2_queryctrl sets the step value based on the control type. That would
be fine if it used the control type stored in the V4L2 kernel control
object, not the one stored in the userspace ioctl structure that has
just been memset to 0. Fix this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The later makes extensive use of structures defined in the former.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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V4L2_CID_PRIVATE_BASE IDs
When queryctrl is called with a V4L2_CID_PRIVATE_BASE control ID, then
currently it is replaced by the real internal ID. This is not according to
the spec so keep the V4L2_CID_PRIVATE_BASE ID in this case.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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VIDIOC_S_CTRL did not check against read-only controls. Even worse, for
controls of type CTRL_CLASS it would cause a kernel oops since those controls
do not have a s_ctrl op.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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ir-kbd-i2c
When registering an IR Rx device with the I2C subsystem, provide more detailed
information about the IR device and default remote configuration for the IR
driver modules.
Also explicitly register any IR Tx device with the I2C subsystem.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This reverts a portion of commit
44243fc2ef99948bc9b046901880885616dd5e89
A commit for which I errantly recommended that defaults for I2C address
0x71 not be set by ir-kbd-i2c.c
The pvrusb2 and bttv drivers currently rely on ir-kbd-i2c setting
defaults for that address. Until I can get those bridge drivers fixed
to properly send IR_i2c_init_data for boards with Zilog Z8 chips,
just add back the default settings for I2C address 0x71.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The ir_command() function is a do-nothing stub; remove it.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The driver is now structured so that it must handle an IR Tx unit
for a Z8 IR chip, or it refuses to handle that Z8 IR chip. This
allows us to assume that ir->tx != NULL in a few places in the driver,
and also allows us to always report Tx is available to userspace.
Get rid of unneeded tests for ir->tx == NULL and always report that
Tx is available.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The IR Rx polling thread was originally a kernel_thread long ago,
and had only been minimally converted to a kthread. This patch
finishes that conversion by
- cleaning up all the unneeded completions
- destroying the kthread properly by calling kthread_stop()
- changing lirc_thread() to test kthread_should_stop() just before
every point where it may sleep
- reorganizing the lirc_thread() function so it uses fewer lines
- modifying the name of the kthread from "lirc_zilog" to
"zilog-rx-i2c-N", so ps will show which kthread polls
which Zilog Z8 IR unit.
Also some minor tweaks were made to logging emitted by the
ir_probe() function.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch is an extensive rework of the ir_probe() and ir_remove() functions.
It removes all the double binding and allocation problems on module load.
It removes almost all the memory leaks on module exit and on device
instantiation failure. Proper destruction of the Rx polling kthread still
needs investigation and more work, but it is no worse than it already was.
This rework also had side effects that include:
- encapsulation of the ir_devices[] array
- serialization of access to the ir_devices[] array
- semantic change of the module parameter "disable_rx" to "tx_only"
If tx_only is true, the module does not claim the i2c_client for the IR Rx
function, and only claims and handles the i2c_client for the IR Tx function.
This is a first step in providing the option of letting ir-kbd-i2c.c handle
IR Rx function, while lirc_zilog handles the IR Tx function.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Don't make private copies of the i2c clients provided by the I2C
subsystem, don't change the client address field, and don't probe
the client addresses - the bridge driver already did that. This
moves us to the proper I2C and binding model.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This change is a mostly mechanical break of the main struct IR
data structure into common, Rx, and Tx structures. There were some
small logical changes required as well, such as eliminating "is_hdpvr",
to accomplish this.
This change is an intiial step in reworking lirc_zilog to decouple the
Rx and Tx handling as much as possible to fit with the new I2C
binding model. This change actually makes lirc_zilog a little more
broken than it already was - memory deallocation in particular got worse.
However, this change makes the remaining problems easier to see and address.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The only reason to use the lirc_zilog module is for IR Tx, so remove
the possibility of disabling IR Tx. If the user needs only IR Rx,
then the ir-kbd-i2c module works just fine, and doesn't require a
"firmware" image.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Jean Delvare <khali@linux-fr.org> suggested this better
format for debug output in ir_probe().
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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After a recent update of xf86-input-evdev and xorg-server, I noticed
that X11 applications did not receive keypresses from the FireDTV
infrared remote control anymore. Instead, the Xorg log featured lots of
"FireDTV remote control: dropping event due to full queue!"
exclamations. The Linux console did not have an issue with the
FireDTV's RC though.
The fix is to insert EV_SYN events after the key-down/-up events.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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