Hi Luc,
On 29/5/20 6:25 am, Luc Van Oostenryck wrote:
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() expect
a plan one and so this cast creates a lot of warnings when using ^^^^
Did you mean "plain"?
Sparse.
So, fix this by adding a cast to 'void __force *' at memcpy()'s
argument.
Reported-by: kbuild test robot <l...@intel.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenr...@gmail.com>
---
arch/m68k/include/asm/uaccess_no.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/m68k/include/asm/uaccess_no.h
b/arch/m68k/include/asm/uaccess_no.h
index 9651766a62af..f32f08a64eaa 100644
--- a/arch/m68k/include/asm/uaccess_no.h
+++ b/arch/m68k/include/asm/uaccess_no.h
@@ -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))); \
^^^
checkpatch wants a ' ' space in there.
Otherwise I think it looks good.
Regards
Greg
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; \
} \
