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| author |   Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2021-06-07 17:12:50 +0900 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2021-06-07 17:14:54 +0200 |
| commit | 5fe8f0a0a83ab78c75010e161fa27ae66e36cd64 (patch) | |
| tree | 1edd6adcccd4e4e8fb86f3b0594f72dbdc9e2d5b /sound/firewire | |
| parent | ALSA: fireface: cease from delayed card registration (diff) | |
| download | linux-dev-5fe8f0a0a83ab78c75010e161fa27ae66e36cd64.tar.xz linux-dev-5fe8f0a0a83ab78c75010e161fa27ae66e36cd64.zip | |
ALSA: firewire-lib: delete unused kernel API
No driver use snd_fw_schedule_registration(). Let's delete it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210607081250.13397-10-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire')
| -rw-r--r-- | sound/firewire/lib.c | 32 | ||||
| -rw-r--r-- | sound/firewire/lib.h | 3 |
2 files changed, 0 insertions, 35 deletions
diff --git a/sound/firewire/lib.c b/sound/firewire/lib.c index 85c4f4477c7f..e0a2337e8f27 100644 --- a/sound/firewire/lib.c +++ b/sound/firewire/lib.c @@ -67,38 +67,6 @@ int snd_fw_transaction(struct fw_unit *unit, int tcode, } EXPORT_SYMBOL(snd_fw_transaction); -#define PROBE_DELAY_MS (2 * MSEC_PER_SEC) - -/** - * snd_fw_schedule_registration - schedule work for sound card registration - * @unit: an instance for unit on IEEE 1394 bus - * @dwork: delayed work with callback function - * - * This function is not designed for general purposes. When new unit is - * connected to IEEE 1394 bus, the bus is under bus-reset state because of - * topological change. In this state, units tend to fail both of asynchronous - * and isochronous communication. To avoid this problem, this function is used - * to postpone sound card registration after the state. The callers must - * set up instance of delayed work in advance. - */ -void snd_fw_schedule_registration(struct fw_unit *unit, - struct delayed_work *dwork) -{ - u64 now, delay; - - now = get_jiffies_64(); - delay = fw_parent_device(unit)->card->reset_jiffies - + msecs_to_jiffies(PROBE_DELAY_MS); - - if (time_after64(delay, now)) - delay -= now; - else - delay = 0; - - mod_delayed_work(system_wq, dwork, delay); -} -EXPORT_SYMBOL(snd_fw_schedule_registration); - MODULE_DESCRIPTION("FireWire audio helper functions"); MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); MODULE_LICENSE("GPL v2"); diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h index dc815dc3933e..664dfdb9e58d 100644 --- a/sound/firewire/lib.h +++ b/sound/firewire/lib.h @@ -23,7 +23,4 @@ static inline bool rcode_is_permanent_error(int rcode) return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR; } -void snd_fw_schedule_registration(struct fw_unit *unit, - struct delayed_work *dwork); - #endif |