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ALSA: firewire-lib: replace in_interrupt() with in_softirq()

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Tasklet is used to handle isochronous context of 1394 OHCI. The explicit
usage of in_softirq() may be preferable than in_interrupt().

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210611083425.61204-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2021-06-11 17:34:25 +09:00 committed by Takashi Iwai
parent be471fe332
commit 3b86ec63c0
2 changed files with 4 additions and 4 deletions
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2
sound/firewire/amdtp-stream-trace.h
View file

@ -49,7 +49,7 @@ TRACE_EVENT(amdtp_packet,
__entry->data_blocks = data_blocks;
__entry->data_block_counter = data_block_counter,
__entry->packet_index = packet_index;
__entry->irq = !!in_interrupt();
__entry->irq = !!in_softirq();
__entry->index = index;
),
TP_printk(

6
sound/firewire/amdtp-stream.c
View file

@ -610,7 +610,7 @@ static void update_pcm_pointers(struct amdtp_stream *s,
// buffer associated to PCM substream to process PCM frames in the buffer, instead
// of receiving notification of period elapsed by poll wait.
if (!pcm->runtime->no_period_wakeup) {
if (in_interrupt()) {
if (in_softirq()) {
// In software IRQ context for 1394 OHCI.
snd_pcm_period_elapsed(pcm);
} else {
@ -1026,7 +1026,7 @@ static void generate_pkt_descs(struct amdtp_stream *s, const __be32 *ctx_header,
static inline void cancel_stream(struct amdtp_stream *s)
{
s->packet_index = -1;
if (in_interrupt())
if (in_softirq())
amdtp_stream_pcm_abort(s);
WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
}
@ -1738,7 +1738,7 @@ unsigned long amdtp_domain_stream_pcm_pointer(struct amdtp_domain *d,
if (irq_target && amdtp_stream_running(irq_target)) {
// In software IRQ context, the call causes dead-lock to disable the tasklet
// synchronously.
if (!in_interrupt())
if (!in_softirq())
fw_iso_context_flush_completions(irq_target->context);
}