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| author | Andreas Eversberg <jolly@eversberg.eu> | 2011-06-25 22:46:24 +0200 |
|---|---|---|
| committer | Sylvain Munaut <tnt@246tNt.com> | 2011-06-25 22:46:24 +0200 |
| commit | bd3629e4e6fe8d5ef958031178c22829c93d1491 (patch) | |
| tree | a3360acf776af8dd2c53cd529d45e2068f2d7eb4 /src/target/firmware/layer1 | |
| parent | 402634a0cf58e8273185b008f9775e8353f3d7d2 (diff) | |
fw/l1a: Add a message to safely count the length of a txqueue
(that is by locking)
Written-by: Andreas Eversberg <jolly@eversberg.eu>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Diffstat (limited to 'src/target/firmware/layer1')
| -rw-r--r-- | src/target/firmware/layer1/async.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/target/firmware/layer1/async.c b/src/target/firmware/layer1/async.c index e5c80c7c..c07b0b5a 100644 --- a/src/target/firmware/layer1/async.c +++ b/src/target/firmware/layer1/async.c @@ -59,6 +59,21 @@ void l1a_meas_msgb_set(struct msgb *msg) local_irq_restore(flags); } +/* safely count messages in the L1S TX queue */ +int l1a_txq_msgb_count(struct llist_head *queue) +{ + unsigned long flags; + int num = 0; + struct llist_head *le; + + local_firq_save(flags); + llist_for_each(le, queue) + num++; + local_irq_restore(flags); + + return num; +} + /* safely flush all pending msgb */ void l1a_txq_msgb_flush(struct llist_head *queue) { |