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m68k: Use BUILD_BUG for passing invalid sizes to get_user/put_user

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Simplify the handling a bit by using the common helper instead of
referencing undefined symbols.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/20210916070405.52750-4-hch@lst.de
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Christoph Hellwig 2021-09-16 09:04:02 +02:00 committed by Geert Uytterhoeven
parent c4f607c312
commit 25d2cae4a5
1 changed files with 2 additions and 7 deletions
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9
arch/m68k/include/asm/uaccess.h
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@ -39,9 +39,6 @@ static inline int access_ok(const void __user *addr,
#define MOVES "move"
#endif
extern int __put_user_bad(void);
extern int __get_user_bad(void);
#define __put_user_asm(res, x, ptr, bwl, reg, err) \
asm volatile ("\n" \
"1: "MOVES"."#bwl" %2,%1\n" \
@ -105,8 +102,7 @@ asm volatile ("\n" \
break; \
} \
default: \
__pu_err = __put_user_bad(); \
break; \
BUILD_BUG(); \
} \
__pu_err; \
})
@ -179,8 +175,7 @@ asm volatile ("\n" \
break; \
} \
default: \
__gu_err = __get_user_bad(); \
break; \
BUILD_BUG(); \
} \
__gu_err; \
})