Subject: [PATCH 05/16] igbvf: Replace spin_is_locked() with lockdep

From: Lance Roy <[email-masked]>
Date: Tue, 2 Oct 2018 22:38:51 -0700

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 <[email-masked]>
Cc: Jeff Kirsher <[email-masked]>
Cc: "David S. Miller" <[email-masked]>
Cc: [email-masked]
Cc: <[email-masked]>
---
 drivers/net/ethernet/intel/igbvf/mbx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igbvf/mbx.c b/drivers/net/ethernet/intel/igbvf/mbx.c
index 163e5838f7c2..a3cd7ac48d4b 100644
--- a/drivers/net/ethernet/intel/igbvf/mbx.c
+++ b/drivers/net/ethernet/intel/igbvf/mbx.c
@@ -241,7 +241,7 @@ static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
 	s32 err;
 	u16 i;
 
-	WARN_ON_ONCE(!spin_is_locked(&hw->mbx_lock));
+	lockdep_assert_held(&hw->mbx_lock);
 
 	/* lock the mailbox to prevent pf/vf race condition */
 	err = e1000_obtain_mbx_lock_vf(hw);
@@ -279,7 +279,7 @@ static s32 e1000_read_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
 	s32 err;
 	u16 i;
 
-	WARN_ON_ONCE(!spin_is_locked(&hw->mbx_lock));
+	lockdep_assert_held(&hw->mbx_lock);
 
 	/* lock the mailbox to prevent pf/vf race condition */
 	err = e1000_obtain_mbx_lock_vf(hw);
-- 
2.19.0