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ALSA: pcm: fix tracing reason in hw_ptr_error

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Strings need to be specially marked in trace events to ensure the
content is captured, othewise the trace just shows the value of the
pointer.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20221125162327.297440-1-john@metanate.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
John Keeping 2022-11-25 16:23:26 +00:00 committed by Takashi Iwai
parent 9d86515c3d
commit e4baf84536
1 changed files with 3 additions and 3 deletions
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6
sound/core/pcm_trace.h
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@ -88,19 +88,19 @@ TRACE_EVENT(hw_ptr_error,
__field( unsigned int, device )
__field( unsigned int, number )
__field( unsigned int, stream )
__field( const char *, reason )
__string( reason, why )
),
TP_fast_assign(
__entry->card = (substream)->pcm->card->number;
__entry->device = (substream)->pcm->device;
__entry->number = (substream)->number;
__entry->stream = (substream)->stream;
__entry->reason = (why);
__assign_str(reason, why);
),
TP_printk("pcmC%dD%d%s/sub%d: ERROR: %s",
__entry->card, __entry->device,
__entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? "p" : "c",
__entry->number, __entry->reason)
__entry->number, __get_str(reason))
);
TRACE_EVENT(applptr,