Thread (1 message) 1 message, 1 author, 2018-10-03
STALE2861d

[PATCH 06/16] sfc: Replace spin_is_locked() with lockdep

From: Lance Roy <hidden>
Date: 2018-10-03 05:40:01
Also in: lkml
Subsystem: networking drivers, sfc network driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Edward Cree, Linus Torvalds

lockdep_assert_held() is better suited to checking locking requirements,
since it won't get confused when someone else holds the lock. This is
also a step towards possibly removing spin_is_locked().

Signed-off-by: Lance Roy <redacted>
Cc: Solarflare linux maintainers <redacted>
Cc: Edward Cree <redacted>
Cc: Bert Kenward <redacted>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <redacted>
---
 drivers/net/ethernet/sfc/efx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 330233286e78..f40c3d5ca413 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -3193,7 +3193,7 @@ struct hlist_head *efx_rps_hash_bucket(struct efx_nic *efx,
 {
 	u32 hash = efx_filter_spec_hash(spec);
 
-	WARN_ON(!spin_is_locked(&efx->rps_hash_lock));
+	lockdep_assert_held(&efx->rps_hash_lock);
 	if (!efx->rps_hash_table)
 		return NULL;
 	return &efx->rps_hash_table[hash % EFX_ARFS_HASH_TABLE_SIZE];
-- 
2.19.0
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