Re: [PATCH v1] ibmvnic: remove excessive irqsave

From: patchwork-bot+netdevbpf
Date: Fri Mar 05 2021 - 16:11:26 EST


Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Fri, 5 Mar 2021 16:48:39 +0800 you wrote:
> From: Junlin Yang <yangjunlin@xxxxxxxxxx>
>
> ibmvnic_remove locks multiple spinlocks while disabling interrupts:
> spin_lock_irqsave(&adapter->state_lock, flags);
> spin_lock_irqsave(&adapter->rwi_lock, flags);
>
> As reported by coccinelle, the second _irqsave() overwrites the value
> saved in 'flags' by the first _irqsave(), therefore when the second
> _irqrestore() comes,the value in 'flags' is not valid,the value saved
> by the first _irqsave() has been lost.
> This likely leads to IRQs remaining disabled. So remove the second
> _irqsave():
> spin_lock_irqsave(&adapter->state_lock, flags);
> spin_lock(&adapter->rwi_lock);
>
> [...]

Here is the summary with links:
- [v1] ibmvnic: remove excessive irqsave
https://git.kernel.org/netdev/net/c/69cdb7947adb

You are awesome, thank you!
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