Re: [PATCH] erofs: suppress false positive last_block warning
From: Chao Yu
Date: Thu May 28 2020 - 05:25:12 EST
On 2020/5/28 16:48, Gao Xiang wrote:
> As Andrew mentioned, some rare specific gcc versions could report
> last_block uninitialized warning. Actually last_block doesn't need
> to be uninitialized first from its implementation due to bio == NULL
> condition. After a bio is allocated, last_block will be assigned
> then.
>
> The detailed analysis is in this thread [1]. So let's silence those
> confusing gccs simply.
>
> [1] https://lore.kernel.org/r/20200421072839.GA13867@hsiangkao-HP-ZHAN-66-Pro-G1
>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Thanks,