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uapi/linux/stddef.h: Add include guards

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[ Upstream commit 55037ed7bdc62151a726f5685f88afa6a82959b1 ]

Add include guard wrapper define to uapi/linux/stddef.h to prevent macro
redefinition errors when stddef.h is included more than once. This was not
needed before since the only contents already used a redefinition test.

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Link: https://lore.kernel.org/r/20220329171252.57279-1-tadeusz.struk@linaro.org
Fixes: 50d7bd38c3aa ("stddef: Introduce struct_group() helper macro")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tadeusz Struk 2022-03-29 10:12:52 -07:00 committed by Greg Kroah-Hartman
parent 1d9bd723e7
commit 121af0231f
1 changed files with 4 additions and 0 deletions
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4
include/uapi/linux/stddef.h
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@ -1,4 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_STDDEF_H
#define _UAPI_LINUX_STDDEF_H
#include <linux/compiler_types.h>
#ifndef __always_inline
@ -41,3 +44,4 @@
struct { } __empty_ ## NAME; \
TYPE NAME[]; \
}
#endif