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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2021-06-07 11:12:50 +0300
committerTakashi Iwai <tiwai@suse.de>2021-06-07 18:14:54 +0300
commit5fe8f0a0a83ab78c75010e161fa27ae66e36cd64 (patch)
tree1edd6adcccd4e4e8fb86f3b0594f72dbdc9e2d5b
parentee5f0b32ce6bd2ddc3caec73391a4b6f687ac2c6 (diff)
downloadlinux-5fe8f0a0a83ab78c75010e161fa27ae66e36cd64.tar.xz
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>
-rw-r--r--sound/firewire/lib.c32
-rw-r--r--sound/firewire/lib.h3
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