luck/tmp_suning_uos_patched
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m68k,nommu: fix implicit cast from __user in __{get,put}_user_asm()

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The assembly for __get_user_asm() & __put_user_asm() uses memcpy()
when the size is 8.

However, the pointer is always a __user one while memcpy() expects
a plain one and so this cast creates a lot of warnings when using
Sparse.

So, fix this by adding a cast to 'void __force *' at memcpy()'s
argument.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
This commit is contained in:
Luc Van Oostenryck 2020-05-29 21:02:18 +02:00 committed by Greg Ungerer
parent ce3e83759c
commit 9e2b6ed41f
1 changed files with 2 additions and 2 deletions
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4
arch/m68k/include/asm/uaccess_no.h
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@ -42,7 +42,7 @@ static inline int _access_ok(unsigned long addr, unsigned long size)
__put_user_asm(__pu_err, __pu_val, ptr, l); \
break; \
case 8: \
memcpy(ptr, &__pu_val, sizeof (*(ptr))); \
memcpy((void __force *)ptr, &__pu_val, sizeof(*(ptr))); \
break; \
default: \
__pu_err = __put_user_bad(); \
@ -85,7 +85,7 @@ extern int __put_user_bad(void);
u64 l; \
__typeof__(*(ptr)) t; \
} __gu_val; \
memcpy(&__gu_val.l, ptr, sizeof(__gu_val.l)); \
memcpy(&__gu_val.l, (const void __force *)ptr, sizeof(__gu_val.l)); \
(x) = __gu_val.t; \
break; \
} \