Subject: Re: linux-next: build failure after merge of the block tree

From: Jens Axboe <[email-masked]>
Date: Mon, 22 Feb 2021 19:32:40 -0700

On 2/22/21 6:42 PM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the block tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> fs/io_uring.c: In function 'io_sq_thread':
> fs/io_uring.c:6787:3: error: implicit declaration of function 'io_ctx_disable_sqo_submit' [-Werror=implicit-function-declaration]
>  6787 |   io_ctx_disable_sqo_submit(ctx);
>       |   ^~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   a6afa091d06a ("io_uring: move SQPOLL thread io-wq forked worker")
> 
> I have used the block tree from next-20210222 for today.

You got very unlucky, that bad commit only lasted for about 1-2 min.

-- 
Jens Axboe