Re: [PATCH] drivers/perf: Prevent forced unbinding of PMU drivers

[Will Deacon]

On Fri, 17 Jul 2020 16:49:23 +0800, Qi Liu wrote:
> Forcefully unbinding PMU drivers during perf sampling will lead to
> a kernel panic, because the perf upper-layer framework call a NULL
> pointer in this situation.
> 
> To solve this issue, "suppress_bind_attrs" should be set to true, so
> that bind/unbind can be disabled via sysfs and prevent unbinding PMU
> drivers during perf sampling.

Applied to arm64 (for-next/fixes), thanks!

[1/1] drivers/perf: Prevent forced unbinding of PMU drivers
      https://git.kernel.org/arm64/c/f32ed8eb0e3f

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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