linux-kernel - [PATCH 06/16] sfc: Replace spin_is

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Date:   Tue,  2 Oct 2018 22:38:52 -0700
From:   Lance Roy <ldr709@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     "Paul E. McKenney" <paulmck@...ux.ibm.com>,
        Lance Roy <ldr709@...il.com>,
        Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
        Edward Cree <ecree@...arflare.com>,
        Bert Kenward <bkenward@...arflare.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: [PATCH 06/16] sfc: Replace spin_is_locked() with lockdep

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 <ldr709@...il.com>
Cc: Solarflare linux maintainers <linux-net-drivers@...arflare.com>
Cc: Edward Cree <ecree@...arflare.com>
Cc: Bert Kenward <bkenward@...arflare.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: <netdev@...r.kernel.org>
---
 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