Re: [PATCH 1/2] pipe: fix potential use-after-free in pipe_read()
From: Matthew Wilcox
Date: Sun Nov 14 2021 - 23:25:57 EST
On Mon, Nov 15, 2021 at 11:57:20AM +0800, Zhen Lei wrote:
> if (!buf->len) {
> + unsigned int __maybe_unused flags = buf->flags;
Why __maybe_unused?