[PATCH net v3] net: stmmac: protect updates of 64-bit statistics counters

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Wed Feb 7 01:10:25 PST 2024


Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem at davemloft.net>:

On Sat,  3 Feb 2024 20:09:27 +0100 you wrote:
> As explained by a comment in <linux/u64_stats_sync.h>, write side of struct
> u64_stats_sync must ensure mutual exclusion, or one seqcount update could
> be lost on 32-bit platforms, thus blocking readers forever. Such lockups
> have been observed in real world after stmmac_xmit() on one CPU raced with
> stmmac_napi_poll_tx() on another CPU.
> 
> To fix the issue without introducing a new lock, split the statics into
> three parts:
> 
> [...]

Here is the summary with links:
  - [net,v3] net: stmmac: protect updates of 64-bit statistics counters
    https://git.kernel.org/netdev/net/c/38cc3c6dcc09

You are awesome, thank you!
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