[alsa-devel] dmesg complains with CONFIG_SND_VERBOSE_PROCFS

Linus Walleij linus.walleij at linaro.org
Mon Feb 27 14:49:00 CET 2017


If CONFIG_SND_VERBOSE_PROCFS is enabled I got a bunch of
nasty messages from duplicate entries when registering the DAIs
like this:

[    3.144805] entry->name == "info"
[    3.148132] entry->name == "info"
[    3.151519] entry->name == "hw_params"
[    3.155273] entry->name == "sw_params"
[    3.159027] entry->name == "status"
[    3.164001] entry->name == "prealloc"
[    3.167663] entry->name == "prealloc_max"
[    3.173034] entry->name == "prealloc"
[    3.176696] ------------[ cut here ]------------
[    3.181335] WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
[    3.189422] proc_dir_entry 'sub0/prealloc' already registered
(...)
[    3.414642] entry->name == "prealloc_max"
[    3.418670] ------------[ cut here ]------------
[    3.423309] WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
[    3.431396] proc_dir_entry 'sub0/prealloc_max' already registered
(...)
[    3.658020] snd-soc-mop500 soc:sound: ab8500-codec-dai.0 <->
80124000.msp mapping ok
[    3.665893] entry->name == "info"
[    3.669219] entry->name == "info"
[    3.672546] entry->name == "hw_params"
[    3.676300] entry->name == "sw_params"
[    3.680053] entry->name == "status"
[    3.684906] entry->name == "prealloc"
[    3.688568] entry->name == "prealloc_max"
[    3.693939] entry->name == "prealloc"
[    3.697601] ------------[ cut here ]------------
[    3.702239] WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
[    3.710296] proc_dir_entry 'sub0/prealloc' already registered
(...)
[    3.936645] entry->name == "prealloc_max"
[    3.940673] ------------[ cut here ]------------
[    3.945281] WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
[    3.953369] proc_dir_entry 'sub0/prealloc_max' already registered
[    4.180023] snd-soc-mop500 soc:sound: ab8500-codec-dai.1 <->
80125000.msp mapping ok

What I can't seem to figure out is whether the DAI in my card
(sound/soc/ux500/mop500.c) is misconfigured some way, or
if CONFIG_SND_VERBOSE_PROCFS is not handling this
the right way?

If I take out the config option everything seems to work smoothly
but I guess it should be possible to have this on?

Any hints?

Yours,
Linus Walleij


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