Re: [PATCH net-next, v3] net/mlx5: Use dma_wmb() for completion queue doorbell updates

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski [off-list ref]:

On Wed, 2 Sep 2026 10:34:29 +0800 you wrote:

From: Li RongQing <redacted>

dma_*() barriers are specifically for ordering writes to DMA
coherent memory that is accessible to both the CPU and DMA capable
devices.

The dma_wmb() barrier is lighter than wmb() on some architectures
because it only ensures ordering for DMA writes, not for all writes
including MMIO accesses.

[...]

Here is the summary with links:
  - [net-next,v3] net/mlx5: Use dma_wmb() for completion queue doorbell updates
    https://git.kernel.org/netdev/net-next/c/31f961de2f90

You are awesome, thank you!
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