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Subjectgenirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000000 (lirc_sir)
Hi Jarod,

Since commit 4b71ca6 ("[media] lirc_sir: make device registration work"),
I see warnings "IRQ handler type mismatch for IRQ 4" in the
samsung/v4l-fimc-next branch.

The warning is made more obvious by Thomas' commit in linux-next
f5d89470f9 ("genirq: Be more informative on irq type mismatch"):

[ 96.064731] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000000 (lirc_sir)

[ 96.067097] Pid: 3941, comm: rc.local Not tainted 3.5.0-rc5+ #42
[ 96.068013] Call Trace:
[ 96.068013] [<ffffffff8110825c>] __setup_irq+0x36f/0x3e6
[ 96.068013] [<ffffffff8110719d>] ? kzalloc.constprop.34+0x1a/0x1c
[ 96.068013] [<ffffffff8117a022>] ? kmem_cache_alloc_trace+0x110/0x122
[ 96.068013] [<ffffffff811083a2>] request_threaded_irq+0xcf/0x10a
[ 96.068013] [<ffffffff817e1ecd>] ? serial8250_backup_timeout+0x112/0x112
[ 96.068013] [<ffffffff817e338a>] serial8250_startup+0x4f3/0x6b7
[ 96.068013] [<ffffffff817deea0>] uart_startup.part.6+0x86/0x178
[ 96.068013] [<ffffffff817dfa1c>] uart_open+0xf2/0x13e
[ 96.068013] [<ffffffff817c038c>] ? check_tty_count+0x4b/0xa8
[ 96.068013] [<ffffffff817c2369>] tty_open+0x306/0x492
[ 96.068013] [<ffffffff81187a5b>] chrdev_open+0x11f/0x14a
[ 96.068013] [<ffffffff810c3b14>] ? local_clock+0x19/0x52
[ 96.068013] [<ffffffff8118793c>] ? cdev_put+0x26/0x26
[ 96.068013] [<ffffffff81182b9b>] do_dentry_open+0x1dd/0x28a
[ 96.068013] [<ffffffff81182cb3>] finish_open+0x6b/0x81
[ 96.068013] [<ffffffff8119095a>] do_last+0x89d/0xa4b
[ 96.068013] [<ffffffff8118e428>] ? inode_permission+0xac/0xe0
[ 96.068013] [<ffffffff811950bc>] ? spin_lock+0x9/0xb
[ 96.068013] [<ffffffff8118e521>] ? link_path_walk+0xc5/0x49e
[ 96.068013] [<ffffffff81190bc7>] path_openat+0xbf/0x33b
[ 96.068013] [<ffffffff810de3a0>] ? trace_hardirqs_off_caller+0x1f/0x9e
[ 96.068013] [<ffffffff810c3b36>] ? local_clock+0x3b/0x52
[ 96.068013] [<ffffffff81191050>] do_filp_open+0x38/0x86
[ 96.068013] [<ffffffff82e9ff8a>] ? _raw_spin_unlock+0x28/0x3b
[ 96.068013] [<ffffffff8119b5df>] ? alloc_fd+0xe5/0xf7
[ 96.068013] [<ffffffff811837bd>] do_sys_open+0x6e/0xfb
[ 96.068013] [<ffffffff8118386b>] sys_open+0x21/0x23
[ 96.068013] [<ffffffff82ea6d29>] system_call_fastpath+0x16/0x1b

Thanks,
Fengguang


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