From: Jens Axboe <axboe@kernel.dk>
Date: Sat, 22 Jul 2023 16:28:37 +0000 (-0600)
Subject: iomap: use an unsigned type for IOMAP_DIO_* defines
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=44842f647346cac4063b2bb8e9476fad09e363e7;p=linux.git

iomap: use an unsigned type for IOMAP_DIO_* defines

IOMAP_DIO_DIRTY shifts by 31 bits, which makes UBSAN unhappy. Clean up
all the defines by making the shifted value an unsigned value.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reported-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 0ce60e80c901e..7d627d43d10bb 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -20,10 +20,10 @@
  * Private flags for iomap_dio, must not overlap with the public ones in
  * iomap.h:
  */
-#define IOMAP_DIO_WRITE_FUA	(1 << 28)
-#define IOMAP_DIO_NEED_SYNC	(1 << 29)
-#define IOMAP_DIO_WRITE		(1 << 30)
-#define IOMAP_DIO_DIRTY		(1 << 31)
+#define IOMAP_DIO_WRITE_FUA	(1U << 28)
+#define IOMAP_DIO_NEED_SYNC	(1U << 29)
+#define IOMAP_DIO_WRITE		(1U << 30)
+#define IOMAP_DIO_DIRTY		(1U << 31)
 
 struct iomap_dio {
 	struct kiocb		*iocb;