5.10-stable review patch. If anyone has any objections, please let me know.
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From: Takashi Iwai tiwai@suse.de
[ Upstream commit 26257869672fd4a06a60c2da841e15fb2cb47bbe ]
In a couple of loops over the all streams, we check the bitmap against the loop counter. A more correct reference would be, however, the index of each stream, instead.
This patch corrects the check of bitmaps to the stream index.
Note that this change doesn't fix anything for now; all existing drivers set up the stream indices properly, hence the loop count is always equal with the stream index. That said, this change is only for consistency.
Link: https://lore.kernel.org/r/20231121154125.4888-1-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/hda/hdac_stream.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 5570722458ca..e510bf09967d 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -605,17 +605,15 @@ void snd_hdac_stream_timecounter_init(struct hdac_stream *azx_dev, struct hdac_stream *s; bool inited = false; u64 cycle_last = 0; - int i = 0;
list_for_each_entry(s, &bus->stream_list, list) { - if (streams & (1 << i)) { + if ((streams & (1 << s->index))) { azx_timecounter_init(s, inited, cycle_last); if (!inited) { inited = true; cycle_last = s->tc.cycle_last; } } - i++; }
snd_pcm_gettime(runtime, &runtime->trigger_tstamp); @@ -660,14 +658,13 @@ void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start, unsigned int streams) { struct hdac_bus *bus = azx_dev->bus; - int i, nwait, timeout; + int nwait, timeout; struct hdac_stream *s;
for (timeout = 5000; timeout; timeout--) { nwait = 0; - i = 0; list_for_each_entry(s, &bus->stream_list, list) { - if (!(streams & (1 << i++))) + if (!(streams & (1 << s->index))) continue;
if (start) {