diff mbox series

net: stmmac: Fix unbalanced IRQ wake disable warning on single irq case

Message ID 20241101-stmmac-unbalanced-wake-single-fix-v1-1-5952524c97f0@collabora.com (mailing list archive)
State New, archived
Headers show
Series net: stmmac: Fix unbalanced IRQ wake disable warning on single irq case | expand

Commit Message

Nícolas F. R. A. Prado Nov. 1, 2024, 9:17 p.m. UTC
Commit a23aa0404218 ("net: stmmac: ethtool: Fixed calltrace caused by
unbalanced disable_irq_wake calls") introduced checks to prevent
unbalanced enable and disable IRQ wake calls. However it only
initialized the auxiliary variable on one of the paths,
stmmac_request_irq_multi_msi(), missing the other,
stmmac_request_irq_single().

Add the same initialization on stmmac_request_irq_single() to prevent
"Unbalanced IRQ <x> wake disable" warnings from being printed the first
time disable_irq_wake() is called on platforms that run on that code
path.

Fixes: a23aa0404218 ("net: stmmac: ethtool: Fixed calltrace caused by unbalanced disable_irq_wake calls")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 +
 1 file changed, 1 insertion(+)


---
base-commit: c88416ba074a8913cf6d61b789dd834bbca6681c
change-id: 20241101-stmmac-unbalanced-wake-single-fix-3dab334ab6eb

Best regards,

Comments

Simon Horman Nov. 6, 2024, 9:42 a.m. UTC | #1
On Fri, Nov 01, 2024 at 05:17:29PM -0400, Nícolas F. R. A. Prado wrote:
> Commit a23aa0404218 ("net: stmmac: ethtool: Fixed calltrace caused by
> unbalanced disable_irq_wake calls") introduced checks to prevent
> unbalanced enable and disable IRQ wake calls. However it only
> initialized the auxiliary variable on one of the paths,
> stmmac_request_irq_multi_msi(), missing the other,
> stmmac_request_irq_single().
> 
> Add the same initialization on stmmac_request_irq_single() to prevent
> "Unbalanced IRQ <x> wake disable" warnings from being printed the first
> time disable_irq_wake() is called on platforms that run on that code
> path.
> 
> Fixes: a23aa0404218 ("net: stmmac: ethtool: Fixed calltrace caused by unbalanced disable_irq_wake calls")
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>

Reviewed-by: Simon Horman <horms@kernel.org>
patchwork-bot+netdevbpf@kernel.org Nov. 7, 2024, 9:20 a.m. UTC | #2
Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Fri, 01 Nov 2024 17:17:29 -0400 you wrote:
> Commit a23aa0404218 ("net: stmmac: ethtool: Fixed calltrace caused by
> unbalanced disable_irq_wake calls") introduced checks to prevent
> unbalanced enable and disable IRQ wake calls. However it only
> initialized the auxiliary variable on one of the paths,
> stmmac_request_irq_multi_msi(), missing the other,
> stmmac_request_irq_single().
> 
> [...]

Here is the summary with links:
  - net: stmmac: Fix unbalanced IRQ wake disable warning on single irq case
    https://git.kernel.org/netdev/net/c/25d70702142a

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 208dbc68aaf9d4a650f167a76d1ef223d5eb6aec..7bf275f127c9d750418db8b4fdb6e650a53dc644 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3780,6 +3780,7 @@  static int stmmac_request_irq_single(struct net_device *dev)
 	/* Request the Wake IRQ in case of another line
 	 * is used for WoL
 	 */
+	priv->wol_irq_disabled = true;
 	if (priv->wol_irq > 0 && priv->wol_irq != dev->irq) {
 		ret = request_irq(priv->wol_irq, stmmac_interrupt,
 				  IRQF_SHARED, dev->name, dev);