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From: Pavel Begunkov <asml.silence@gmail.com>
To: io-uring@vger.kernel.org
Cc: asml.silence@gmail.com
Subject: [PATCH 1/1] io_uring: don't use int for ABI
Date: Wed,  2 Jul 2025 21:31:54 +0100	[thread overview]
Message-ID: <47c666c4ee1df2018863af3a2028af18feef11ed.1751412511.git.asml.silence@gmail.com> (raw)

__kernel_rwf_t is defined as int, the actual size of which is
implementation defined. It won't go well if some compiler / archs
ever defines it as i64, so replace it with __u32, hoping that
there is no one using i16 for it.

Cc: stable@vger.kernel.org
Fixes: 2b188cc1bb857 ("Add io_uring IO interface")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 include/uapi/linux/io_uring.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 85600ad0ac08..fe45564579ab 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -50,7 +50,7 @@ struct io_uring_sqe {
 	};
 	__u32	len;		/* buffer size or number of iovecs */
 	union {
-		__kernel_rwf_t	rw_flags;
+		__u32		rw_flags;
 		__u32		fsync_flags;
 		__u16		poll_events;	/* compatibility */
 		__u32		poll32_events;	/* word-reversed for BE */
-- 
2.49.0


             reply	other threads:[~2025-07-02 20:30 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-02 20:31 Pavel Begunkov [this message]
2025-07-02 23:19 ` [PATCH 1/1] io_uring: don't use int for ABI Jens Axboe

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