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f7b8f70ba4
The interface for fcntl expects the argument passed for the command F_ADD_SEALS to be of type int. The current code wrongly treats it as a long. In order to avoid access to undefined bits, we should explicitly cast the argument to int. This commit changes the signature of all the related and helper functions so that they treat the argument as int instead of long. Link: https://lkml.kernel.org/r/20230414152459.816046-5-Luca.Vizzarro@arm.com Signed-off-by: Luca Vizzarro <Luca.Vizzarro@arm.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Jeff Layton <jlayton@kernel.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Kevin Brodsky <Kevin.Brodsky@arm.com> Cc: Vincenzo Frascino <Vincenzo.Frascino@arm.com> Cc: Szabolcs Nagy <Szabolcs.Nagy@arm.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: David Laight <David.Laight@ACULAB.com> Cc: Mark Rutland <Mark.Rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
16 lines
363 B
C
16 lines
363 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_MEMFD_H
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#define __LINUX_MEMFD_H
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#include <linux/file.h>
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#ifdef CONFIG_MEMFD_CREATE
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extern long memfd_fcntl(struct file *file, unsigned int cmd, unsigned int arg);
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#else
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static inline long memfd_fcntl(struct file *f, unsigned int c, unsigned int a)
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{
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return -EINVAL;
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}
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#endif
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#endif /* __LINUX_MEMFD_H */
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