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Wed, 22 Oct 2025 10:17:08 -0700 (PDT) Message-ID: Date: Wed, 22 Oct 2025 11:17:07 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: linux-next: build failure after merge of the block tree To: Stephen Rothwell Cc: Keith Busch , Linux Kernel Mailing List , Linux Next Mailing List , "kernelci.org bot" References: <20251022162553.5dfb4df9@canb.auug.org.au> Content-Language: en-US From: Jens Axboe In-Reply-To: <20251022162553.5dfb4df9@canb.auug.org.au> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/21/25 11:25 PM, Stephen Rothwell wrote: > Hi all, > > After merging the block tree, today's linux-next build (x86_64 defconfig > clang-17) failed like this: > > io_uring/fdinfo.c:103:22: error: variable 'sqe' is uninitialized when used here [-Werror,-Wuninitialized] > 103 | opcode = READ_ONCE(sqe->opcode); > | ^~~ > ./include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE' > 50 | __READ_ONCE(x); \ > AR drivers/irqchip/built-in.a > | ^ > ./include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE' > 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) > | ^ > io_uring/fdinfo.c:92:27: note: initialize the variable 'sqe' to silence this warning > 92 | struct io_uring_sqe *sqe; > | ^ > | = NULL > 1 error generated. > > Introduced by commit > > 31dc41afdef2 ("io_uring: add support for IORING_SETUP_SQE_MIXED") Yep sorry about that, the current tree should be fine. -- Jens Axboe