ptp: lan743x: Use spin_lock instead of spin_lock_bh

Message ID 20240128101849.107298-1-tanure@linux.com
State New
Headers
Series ptp: lan743x: Use spin_lock instead of spin_lock_bh |

Commit Message

Lucas Tanure Jan. 28, 2024, 10:18 a.m. UTC
  lan743x_ptp_request_tx_timestamp uses spin_lock_bh, but it is
only called from lan743x_tx_xmit_frame where all IRQs are
already disabled.

This fixes the "IRQs not enabled as expected" warning.

Signed-off-by: Lucas Tanure <tanure@linux.com>
---
 drivers/net/ethernet/microchip/lan743x_ptp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
  

Comments

patchwork-bot+netdevbpf@kernel.org Jan. 31, 2024, 11:20 p.m. UTC | #1
Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Sun, 28 Jan 2024 10:18:49 +0000 you wrote:
> lan743x_ptp_request_tx_timestamp uses spin_lock_bh, but it is
> only called from lan743x_tx_xmit_frame where all IRQs are
> already disabled.
> 
> This fixes the "IRQs not enabled as expected" warning.
> 
> Signed-off-by: Lucas Tanure <tanure@linux.com>
> 
> [...]

Here is the summary with links:
  - ptp: lan743x: Use spin_lock instead of spin_lock_bh
    https://git.kernel.org/netdev/net-next/c/96b93f08357c

You are awesome, thank you!
  

Patch

diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
index 2f04bc77a118..2801f08bf1c9 100644
--- a/drivers/net/ethernet/microchip/lan743x_ptp.c
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
@@ -1712,13 +1712,13 @@  bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter)
 	struct lan743x_ptp *ptp = &adapter->ptp;
 	bool result = false;
 
-	spin_lock_bh(&ptp->tx_ts_lock);
+	spin_lock(&ptp->tx_ts_lock);
 	if (ptp->pending_tx_timestamps < LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS) {
 		/* request granted */
 		ptp->pending_tx_timestamps++;
 		result = true;
 	}
-	spin_unlock_bh(&ptp->tx_ts_lock);
+	spin_unlock(&ptp->tx_ts_lock);
 	return result;
 }