[Intel-wired-lan] [PATCH 04/16] i40e: Replace spin_is_locked() with lockdep

[Intel-wired-lan] [PATCH 04/16] i40e: Replace spin_is_locked() with lockdep

[Lance Roy]

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@gmail.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: intel-wired-lan at lists.osuosl.org
Cc: <netdev@vger.kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index ac685ad4d877..8ce3471723d3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1489,8 +1489,7 @@ int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr)
 	bool found = false;
 	int bkt;
 
-	WARN(!spin_is_locked(&vsi->mac_filter_hash_lock),
-	     "Missing mac_filter_hash_lock\n");
+	lockdep_assert_held(&vsi->mac_filter_hash_lock);
 	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
 		if (ether_addr_equal(macaddr, f->macaddr)) {
 			__i40e_del_filter(vsi, f);
-- 
2.19.0

[Intel-wired-lan] [PATCH 04/16] i40e: Replace spin_is_locked() with lockdep

[Bowers, AndrewX]

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Lance Roy
> Sent: Tuesday, October 2, 2018 10:39 PM
> To: linux-kernel at vger.kernel.org
> Cc: netdev at vger.kernel.org; Lance Roy <ldr709@gmail.com>; intel-wired-
> lan at lists.osuosl.org; Paul E. McKenney <paulmck@linux.ibm.com>; David S.
> Miller <davem@davemloft.net>
> Subject: [Intel-wired-lan] [PATCH 04/16] i40e: 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@gmail.com>
> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: intel-wired-lan at lists.osuosl.org
> Cc: <netdev@vger.kernel.org>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Tested-by: Andrew Bowers <andrewx.bowers@intel.com>

[Intel-wired-lan] [PATCH 05/16] igbvf: Replace spin_is_locked() with lockdep

[Lance Roy]

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@gmail.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: intel-wired-lan at lists.osuosl.org
Cc: <netdev@vger.kernel.org>
---
 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

[Intel-wired-lan] [PATCH 05/16] igbvf: Replace spin_is_locked() with lockdep

[Brown, Aaron F]

> From: netdev-owner at vger.kernel.org [mailto:netdev-
> owner at vger.kernel.org] On Behalf Of Lance Roy
> Sent: Tuesday, October 2, 2018 10:39 PM
> To: linux-kernel at vger.kernel.org
> Cc: Paul E. McKenney <paulmck@linux.ibm.com>; Lance Roy
> <ldr709@gmail.com>; Kirsher, Jeffrey T <jeffrey.t.kirsher@intel.com>; David
> S. Miller <davem@davemloft.net>; intel-wired-lan at lists.osuosl.org;
> netdev at vger.kernel.org
> Subject: [PATCH 05/16] igbvf: 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@gmail.com>
> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: intel-wired-lan at lists.osuosl.org
> Cc: <netdev@vger.kernel.org>
> ---
>  drivers/net/ethernet/intel/igbvf/mbx.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Tested-by: Aaron Brown <aaron.f.brown@intel.com>