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Merged
merged 2 commits into from
Sep 16, 2014
Merged

Support for gpio connected ir senders/receivers #18

merged 2 commits into from
Sep 16, 2014

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CurlyMoo
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This module allows users to use a GPIO connected
IR receiver and/or sender with LIRC. The module
uses the sysfs gpio kernel functions to interact
with the gpio. You can configure the module from
inside the device tree like this:

lirc_gpio {
compatible = "lirc_gpio";
gpios = <&gpio3 6 1 &gpio3 7 2>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_hummingboard_gpio3_6>;
pinctrl-1 = <&pinctrl_hummingboard_gpio3_7>;
linux,sense = <-1>;
linux,softcarrier = <1>;
linux,validgpios = <1 73 72 71 70 194 195 67>;
};

It should therefor work on all platforms.

@CurlyMoo
Support for gpio connected ir senders/receivers
7311833 
This module allows users to use a GPIO connected
IR receiver and/or sender with LIRC. The module
uses the sysfs gpio kernel functions to interact
with the gpio. You can configure the module from
inside the device tree like this:

lirc_gpio {
	compatible = "lirc_gpio";
	gpios = <&gpio3 6 1 &gpio3 7 2>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_hummingboard_gpio3_6>;
	pinctrl-1 = <&pinctrl_hummingboard_gpio3_7>;
	linux,sense = <-1>;
	linux,softcarrier = <1>;
	linux,validgpios = <1 73 72 71 70 194 195 67>;
};

It should therefor work on all platforms.
@CurlyMoo
Added newline at end of file
59efa60
@CurlyMoo CurlyMoo mentioned this pull request Sep 16, 2014
Closed
linux4kix added a commit that referenced this pull request Sep 16, 2014
@linux4kix
Merge pull request #18 from CurlyMoo/lirc_gpio
4354226 
Support for gpio connected ir senders/receivers
@linux4kix linux4kix merged commit 4354226 into linux4kix:linux-linaro-lsk-v3.14-mx6 Sep 16, 2014
@CurlyMoo CurlyMoo deleted the lirc_gpio branch September 16, 2014 14:18
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@suryasaimadhu
x86: Improve the printout of the SMP bootup CPU table
646e29a 
As the new x86 CPU bootup printout format code maintainer, I am
taking immediate action to improve and clean (and thus indulge
my OCD) the reporting of the cores when coming up online.

Fix padding to a right-hand alignment, cleanup code and bind
reporting width to the max number of supported CPUs on the
system, like this:

 [    0.074509] smpboot: Booting Node   0, Processors:      linux4kix#1  linux4kix#2  linux4kix#3  linux4kix#4  linux4kix#5  linux4kix#6  linux4kix#7 OK
 [    0.644008] smpboot: Booting Node   1, Processors:  linux4kix#8  linux4kix#9 linux4kix#10 linux4kix#11 linux4kix#12 linux4kix#13 linux4kix#14 linux4kix#15 OK
 [    1.245006] smpboot: Booting Node   2, Processors: linux4kix#16 linux4kix#17 linux4kix#18 linux4kix#19 linux4kix#20 linux4kix#21 linux4kix#22 linux4kix#23 OK
 [    1.864005] smpboot: Booting Node   3, Processors: linux4kix#24 linux4kix#25 linux4kix#26 linux4kix#27 linux4kix#28 #29 #30 #31 OK
 [    2.489005] smpboot: Booting Node   4, Processors: #32 #33 #34 #35 #36 #37 #38 #39 OK
 [    3.093005] smpboot: Booting Node   5, Processors: #40 #41 #42 #43 #44 #45 #46 #47 OK
 [    3.698005] smpboot: Booting Node   6, Processors: #48 #49 #50 #51 #52 #53 #54 #55 OK
 [    4.304005] smpboot: Booting Node   7, Processors: #56 #57 #58 #59 #60 #61 #62 #63 OK
 [    4.961413] Brought up 64 CPUs

and this:

 [    0.072367] smpboot: Booting Node   0, Processors:    linux4kix#1 linux4kix#2 linux4kix#3 linux4kix#4 linux4kix#5 linux4kix#6 linux4kix#7 OK
 [    0.686329] Brought up 8 CPUs

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Libin <huawei.libin@huawei.com>
Cc: wangyijing@huawei.com
Cc: fenghua.yu@intel.com
Cc: guohanjun@huawei.com
Cc: paul.gortmaker@windriver.com
Link: http://lkml.kernel.org/r/20130927143554.GF4422@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@bp3tk0v
x86/boot: Further compress CPUs bootup message
a17bce4 
Turn it into (for example):

[    0.073380] x86: Booting SMP configuration:
[    0.074005] .... node   #0, CPUs:          linux4kix#1   linux4kix#2   linux4kix#3   linux4kix#4   linux4kix#5   linux4kix#6   linux4kix#7
[    0.603005] .... node   linux4kix#1, CPUs:     linux4kix#8   linux4kix#9  linux4kix#10  linux4kix#11  linux4kix#12  linux4kix#13  linux4kix#14  linux4kix#15
[    1.200005] .... node   linux4kix#2, CPUs:    linux4kix#16  linux4kix#17  linux4kix#18  linux4kix#19  linux4kix#20  linux4kix#21  linux4kix#22  linux4kix#23
[    1.796005] .... node   linux4kix#3, CPUs:    linux4kix#24  linux4kix#25  linux4kix#26  linux4kix#27  linux4kix#28  #29  #30  #31
[    2.393005] .... node   linux4kix#4, CPUs:    #32  #33  #34  #35  #36  #37  #38  #39
[    2.996005] .... node   linux4kix#5, CPUs:    #40  #41  #42  #43  #44  #45  #46  #47
[    3.600005] .... node   linux4kix#6, CPUs:    #48  #49  #50  #51  #52  #53  #54  #55
[    4.202005] .... node   linux4kix#7, CPUs:    #56  #57  #58  #59  #60  #61  #62  #63
[    4.811005] .... node   linux4kix#8, CPUs:    #64  #65  #66  #67  #68  #69  #70  #71
[    5.421006] .... node   linux4kix#9, CPUs:    #72  #73  #74  #75  #76  #77  #78  #79
[    6.032005] .... node  linux4kix#10, CPUs:    #80  #81  #82  #83  #84  #85  #86  #87
[    6.648006] .... node  linux4kix#11, CPUs:    #88  #89  #90  #91  #92  #93  #94  #95
[    7.262005] .... node  linux4kix#12, CPUs:    #96  #97  #98  #99 #100 #101 #102 #103
[    7.865005] .... node  linux4kix#13, CPUs:   #104 #105 #106 #107 #108 #109 #110 #111
[    8.466005] .... node  linux4kix#14, CPUs:   #112 #113 #114 #115 #116 #117 #118 #119
[    9.073006] .... node  linux4kix#15, CPUs:   #120 #121 #122 #123 #124 #125 #126 #127
[    9.679901] x86: Booted up 16 nodes, 128 CPUs

and drop useless elements.

Change num_digits() to hpa's division-avoiding, cell-phone-typed
version which he went at great lengths and pains to submit on a
Saturday evening.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: huawei.libin@huawei.com
Cc: wangyijing@huawei.com
Cc: fenghua.yu@intel.com
Cc: guohanjun@huawei.com
Cc: paul.gortmaker@windriver.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20130930095624.GB16383@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@hnaz @torvalds
mm: memcg: fix test for child groups
696ac17 
When memcg code needs to know whether any given memcg has children, it
uses the cgroup child iteration primitives and returns true/false
depending on whether the iteration loop is executed at least once or
not.

Because a cgroup's list of children is RCU protected, these primitives
require the RCU read-lock to be held, which is not the case for all
memcg callers.  This results in the following splat when e.g.  enabling
hierarchy mode:

  WARNING: CPU: 3 PID: 1 at kernel/cgroup.c:3043 css_next_child+0xa3/0x160()
  CPU: 3 PID: 1 Comm: systemd Not tainted 3.12.0-rc5-00117-g83f11a9-dirty linux4kix#18
  Hardware name: LENOVO 3680B56/3680B56, BIOS 6QET69WW (1.39 ) 04/26/2012
  Call Trace:
    dump_stack+0x54/0x74
    warn_slowpath_common+0x78/0xa0
    warn_slowpath_null+0x1a/0x20
    css_next_child+0xa3/0x160
    mem_cgroup_hierarchy_write+0x5b/0xa0
    cgroup_file_write+0x108/0x2a0
    vfs_write+0xbd/0x1e0
    SyS_write+0x4c/0xa0
    system_call_fastpath+0x16/0x1b

In the memcg case, we only care about children when we are attempting to
modify inheritable attributes interactively.  Racing with deletion could
mean a spurious -EBUSY, no problem.  Racing with addition is handled
just fine as well through the memcg_create_mutex: if the child group is
not on the list after the mutex is acquired, it won't be initialized
from the parent's attributes until after the unlock.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@axboe
block: fix a probe argument to blk_register_region
a207f59 
The probe function is supposed to return NULL on failure (as we can see in
kobj_lookup: kobj = probe(dev, index, data); ... if (kobj) return kobj;

However, in loop and brd, it returns negative error from ERR_PTR.

This causes a crash if we simulate disk allocation failure and run
less -f /dev/loop0 because the negative number is interpreted as a pointer:

BUG: unable to handle kernel NULL pointer dereference at 00000000000002b4
IP: [<ffffffff8118b188>] __blkdev_get+0x28/0x450
PGD 23c677067 PUD 23d6d1067 PMD 0
Oops: 0000 [linux4kix#1] PREEMPT SMP
Modules linked in: loop hpfs nvidia(PO) ip6table_filter ip6_tables uvesafb cfbcopyarea cfbimgblt cfbfillrect fbcon font bitblit fbcon_rotate fbcon_cw fbcon_ud fbcon_ccw softcursor fb fbdev msr ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc tun ipv6 cpufreq_stats cpufreq_ondemand cpufreq_userspace cpufreq_powersave cpufreq_conservative hid_generic spadfs usbhid hid fuse raid0 snd_usb_audio snd_pcm_oss snd_mixer_oss md_mod snd_pcm snd_timer snd_page_alloc snd_hwdep snd_usbmidi_lib dmi_sysfs snd_rawmidi nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack snd soundcore lm85 hwmon_vid ohci_hcd ehci_pci ehci_hcd serverworks sata_svw libata acpi_cpufreq freq_table mperf ide_core usbcore kvm_amd kvm tg3 i2c_piix4 libphy microcode e100 usb_common ptp skge i2c_core pcspkr k10temp evdev floppy hwmon pps_core mii rtc_cmos button processor unix [last unloaded: nvidia]
CPU: 1 PID: 6831 Comm: less Tainted: P        W  O 3.10.15-devel linux4kix#18
Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
task: ffff880203cc6bc0 ti: ffff88023e47c000 task.ti: ffff88023e47c000
RIP: 0010:[<ffffffff8118b188>]  [<ffffffff8118b188>] __blkdev_get+0x28/0x450
RSP: 0018:ffff88023e47dbd8  EFLAGS: 00010286
RAX: ffffffffffffff74 RBX: ffffffffffffff74 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88023e47dc18 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88023f519658
R13: ffffffff8118c300 R14: 0000000000000000 R15: ffff88023f519640
FS:  00007f2070bf7700(0000) GS:ffff880247400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000002b4 CR3: 000000023da1d000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
 0000000000000002 0000001d00000000 000000003e47dc50 ffff88023f519640
 ffff88043d5bb668 ffffffff8118c300 ffff88023d683550 ffff88023e47de60
 ffff88023e47dc98 ffffffff8118c10d 0000001d81605698 0000000000000292
Call Trace:
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff8118c10d>] blkdev_get+0x1dd/0x370
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff813cea6c>] ? _raw_spin_unlock+0x2c/0x50
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff8118c365>] blkdev_open+0x65/0x80
 [<ffffffff8114d12e>] do_dentry_open.isra.18+0x23e/0x2f0
 [<ffffffff8114d214>] finish_open+0x34/0x50
 [<ffffffff8115e122>] do_last.isra.62+0x2d2/0xc50
 [<ffffffff8115eb58>] path_openat.isra.63+0xb8/0x4d0
 [<ffffffff81115a8e>] ? might_fault+0x4e/0xa0
 [<ffffffff8115f4f0>] do_filp_open+0x40/0x90
 [<ffffffff813cea6c>] ? _raw_spin_unlock+0x2c/0x50
 [<ffffffff8116db85>] ? __alloc_fd+0xa5/0x1f0
 [<ffffffff8114e45f>] do_sys_open+0xef/0x1d0
 [<ffffffff8114e559>] SyS_open+0x19/0x20
 [<ffffffff813cff16>] system_call_fastpath+0x1a/0x1f
Code: 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 89 d6 41 55 41 54 4c 8d 67 18 53 48 83 ec 18 89 75 cc e9 f2 00 00 00 0f 1f 44 00 00 <48> 8b 80 40 03 00 00 48 89 df 4c 8b 68 58 e8 d5
a4 07 00 44 89
RIP  [<ffffffff8118b188>] __blkdev_get+0x28/0x450
 RSP <ffff88023e47dbd8>
CR2: 00000000000002b4
---[ end trace bb7f32dbf02398dc ]---

The brd change should be backported to stable kernels starting with 2.6.25.
The loop change should be backported to stable kernels starting with 2.6.22.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org	# 2.6.22+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@fabioestevam
ARM: 7907/1: lib: delay-loop: Add align directive to fix BogoMIPS cal…
11d4bb1 
…culation

Currently mx53 (CortexA8) running at 1GHz reports:
Calibrating delay loop... 663.55 BogoMIPS (lpj=3317760)

Tom Evans verified that alignments of 0x0 and 0x8 run the two instructions of __loop_delay in one clock cycle (1 clock/loop), while alignments of 0x4 and 0xc take 3 clocks to run the loop twice. (1.5 clock/loop)

The original object code looks like this:

00000010 <__loop_const_udelay>:
  10:	e3e01000 	mvn	r1, #0
  14:	e51f201c 	ldr	r2, [pc, #-28]	; 0 <__loop_udelay-0x8>
  18:	e5922000 	ldr	r2, [r2]
  1c:	e0800921 	add	r0, r0, r1, lsr linux4kix#18
  20:	e1a00720 	lsr	r0, r0, linux4kix#14
  24:	e0822b21 	add	r2, r2, r1, lsr linux4kix#22
  28:	e1a02522 	lsr	r2, r2, linux4kix#10
  2c:	e0000092 	mul	r0, r2, r0
  30:	e0800d21 	add	r0, r0, r1, lsr linux4kix#26
  34:	e1b00320 	lsrs	r0, r0, linux4kix#6
  38:	01a0f00e 	moveq	pc, lr

0000003c <__loop_delay>:
  3c:	e2500001 	subs	r0, r0, linux4kix#1
  40:	8afffffe 	bhi	3c <__loop_delay>
  44:	e1a0f00e 	mov	pc, lr

After adding the 'align 3' directive to __loop_delay (align to 8 bytes):

00000010 <__loop_const_udelay>:
  10:	e3e01000 	mvn	r1, #0
  14:	e51f201c 	ldr	r2, [pc, #-28]	; 0 <__loop_udelay-0x8>
  18:	e5922000 	ldr	r2, [r2]
  1c:	e0800921 	add	r0, r0, r1, lsr linux4kix#18
  20:	e1a00720 	lsr	r0, r0, linux4kix#14
  24:	e0822b21 	add	r2, r2, r1, lsr linux4kix#22
  28:	e1a02522 	lsr	r2, r2, linux4kix#10
  2c:	e0000092 	mul	r0, r2, r0
  30:	e0800d21 	add	r0, r0, r1, lsr linux4kix#26
  34:	e1b00320 	lsrs	r0, r0, linux4kix#6
  38:	01a0f00e 	moveq	pc, lr
  3c:	e320f000 	nop	{0}

00000040 <__loop_delay>:
  40:	e2500001 	subs	r0, r0, linux4kix#1
  44:	8afffffe 	bhi	40 <__loop_delay>
  48:	e1a0f00e 	mov	pc, lr
  4c:	e320f000 	nop	{0}

, which now reports:
Calibrating delay loop... 996.14 BogoMIPS (lpj=4980736)

Some more test results:

On mx31 (ARM1136) running at 532 MHz, before the patch:
Calibrating delay loop... 351.43 BogoMIPS (lpj=1757184)

On mx31 (ARM1136) running at 532 MHz after the patch:
Calibrating delay loop... 528.79 BogoMIPS (lpj=2643968)

Also tested on mx6 (CortexA9) and on mx27 (ARM926), which shows the same
BogoMIPS value before and after this patch.

Reported-by: Tom Evans <tom_usenet@optusnet.com.au>
Suggested-by: Tom Evans <tom_usenet@optusnet.com.au>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
wolfgar pushed a commit to wolfgar/linux-linaro-stable-mx6 that referenced this pull request Sep 21, 2014
@mchehab
[media] em28xx: only initialize extensions on the main interface
e63fa18 
For devices with a separated audio-only interface (em2860), call
em28xx_init_extension() only once.

That fixes a bug with Kworld 305U (eb1a:e305):

    [  658.730715] em2860 #0: V4L2 video device registered as video1
    [  658.730728] em2860 #0: V4L2 VBI device registered as vbi0
    [  658.736907] em2860 #0: Remote control support is not available for this card.
    [  658.736965] em2860 linux4kix#1: Remote control support is not available for this card.
    [  658.737230] ------------[ cut here ]------------
    [  658.737246] WARNING: CPU: 2 PID: 60 at lib/list_debug.c:36 __list_add+0x8a/0xc0()
    [  658.737256] list_add double add: new=ffff8800a9a40410, prev=ffff8800a9a40410, next=ffffffffa08720d0.
    [  658.737266] Modules linked in: tuner_xc2028 netconsole rc_hauppauge em28xx_rc rc_core tuner_simple tuner_types tda9887 tda8290 tuner tvp5150 msp3400 em28xx_v4l em28xx tveeprom
 v4l2_common fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6tabl
e_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
nf_nat nf_conntrack iptable_mangle iptable_security bnep iptable_raw vfat fat arc4 iwldvm mac80211 x86_pkg_temp_thermal coretemp kvm_intel nfsd iwlwifi snd_hda_codec_hdmi kvm snd_hda
_codec_realtek snd_hda_intel snd_hda_codec auth_rpcgss nfs_acl cfg80211 lockd snd_hwdep snd_seq btusb sunrpc crc32_pclmul bluetooth crc32c_intel snd_seq_device snd_pcm uvcvideo r8169
 ghash_clmulni_intel videobuf2_vmalloc videobuf2_memops videobuf2_core snd_page_alloc snd_timer snd videodev mei_me iTCO_wdt mii shpchp joydev mei media iTCO_vendor_support lpc_ich m
icrocode soundcore rfkill serio_raw i2c_i801 mfd_core nouveau i915 ttm i2c_algo_bit drm_kms_helper drm i2c_core mxm_wmi wmi video
    [  658.738601] CPU: 2 PID: 60 Comm: kworker/2:1 Not tainted 3.13.0-rc1+ linux4kix#18
    [  658.738611] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 550P5C/550P7C/SAMSUNG_NP1234567890, BIOS P04ABI.013.130220.dg 02/20/2013
    [  658.738624] Workqueue: events request_module_async [em28xx]
    [  658.738646]  0000000000000009 ffff8802209dfc68 ffffffff816a3c96 ffff8802209dfcb0
    [  658.738700]  ffff8802209dfca0 ffffffff8106aaad ffff8800a9a40410 ffffffffa08720d0
    [  658.738754]  ffff8800a9a40410 0000000000000000 0000000000000080 ffff8802209dfd00
    [  658.738814] Call Trace:
    [  658.738836]  [<ffffffff816a3c96>] dump_stack+0x45/0x56
    [  658.738851]  [<ffffffff8106aaad>] warn_slowpath_common+0x7d/0xa0
    [  658.738864]  [<ffffffff8106ab1c>] warn_slowpath_fmt+0x4c/0x50
    [  658.738880]  [<ffffffffa0868a7d>] ? em28xx_init_extension+0x1d/0x80 [em28xx]
    [  658.738898]  [<ffffffff81343b8a>] __list_add+0x8a/0xc0
    [  658.738911]  [<ffffffffa0868a98>] em28xx_init_extension+0x38/0x80 [em28xx]
    [  658.738927]  [<ffffffffa086a059>] request_module_async+0x19/0x110 [em28xx]
    [  658.738942]  [<ffffffff810873b5>] process_one_work+0x1f5/0x510
    [  658.738954]  [<ffffffff81087353>] ? process_one_work+0x193/0x510
    [  658.738967]  [<ffffffff810880bb>] worker_thread+0x11b/0x3a0
    [  658.738979]  [<ffffffff81087fa0>] ? manage_workers.isra.24+0x2b0/0x2b0
    [  658.738992]  [<ffffffff8108ea2f>] kthread+0xff/0x120
    [  658.739005]  [<ffffffff8108e930>] ? kthread_create_on_node+0x250/0x250
    [  658.739017]  [<ffffffff816b517c>] ret_from_fork+0x7c/0xb0
    [  658.739029]  [<ffffffff8108e930>] ? kthread_create_on_node+0x250/0x250
    [  658.739040] ---[ end trace c1acd24b354108de ]---
    [  658.739051] em2860 linux4kix#1: Remote control support is not available for this card.
    [  658.742407] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.742429] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.742440] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    [  658.744798] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.744823] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.744836] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    [  658.746849] em28xx-audio.c: probing for em28xx Audio Vendor Class
    [  658.746863] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
    [  658.746874] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab
    ...

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@CurlyMoo @linux4kix