linux-kernel - [PATCH] io_uring: initialize vairable "sqe" to silence build warning

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Message-Id: <20251022150716.2157854-1-mallikarjunst09@gmail.com>
Date: Wed, 22 Oct 2025 17:07:16 +0200
From: Mallikarjun Thammanavar <mallikarjunst09@...il.com>
To: axboe@...nel.dk
Cc: io-uring@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	regressions@...ts.linux.dev,
	Mallikarjun Thammanavar <mallikarjunst09@...il.com>,
	"kernelci . org bot" <bot@...nelci.org>
Subject: [PATCH] io_uring: initialize vairable "sqe" to silence build warning

clang-17 compiler throws build error when [-Werror,-Wuninitialized] are enabled
error: variable 'sqe' is uninitialized when used here [-Werror,-Wuninitialized]

Initialize struct io_uring_sqe *sqe = NULL; to have clean build
Reported-by: kernelci.org bot <bot@...nelci.org>
Link: https://lore.kernel.org/regressions/176110914348.5309.724397608932251368@15dd6324cc71/

Signed-off-by: Mallikarjun Thammanavar <mallikarjunst09@...il.com>
---
 io_uring/fdinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io_uring/fdinfo.c b/io_uring/fdinfo.c
index d5aa64203de5..e5792b794f8b 100644
--- a/io_uring/fdinfo.c
+++ b/io_uring/fdinfo.c
@@ -89,7 +89,7 @@ static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m)
 	seq_printf(m, "CachedCqTail:\t%u\n", data_race(ctx->cached_cq_tail));
 	seq_printf(m, "SQEs:\t%u\n", sq_tail - sq_head);
 	while (sq_head < sq_tail) {
-		struct io_uring_sqe *sqe;
+		struct io_uring_sqe *sqe = NULL;
 		unsigned int sq_idx;
 		bool sqe128 = false;
 		u8 opcode;
-- 
2.34.1