Messages in this thread Patch in this message | | | Date | Sun, 14 Dec 2014 18:53:14 +0200 | From | "Michael S. Tsirkin" <> | Subject | [PATCH 18/18] m68k/uaccess: fix sparse errors |
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virtio wants to read bitwise types from userspace using get_user. At the moment this triggers sparse errors, since the value is passed through an integer.
Fix that up using __force.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- arch/m68k/include/asm/uaccess_mm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h index 15901db..c31f53f 100644 --- a/arch/m68k/include/asm/uaccess_mm.h +++ b/arch/m68k/include/asm/uaccess_mm.h @@ -146,7 +146,7 @@ asm volatile ("\n" \ " .previous" \ : "+d" (res), "=&" #reg (__gu_val) \ : "m" (*(ptr)), "i" (err)); \ - (x) = (typeof(*(ptr)))(unsigned long)__gu_val; \ + (x) = (__force typeof(*(ptr)))(__force unsigned long)__gu_val; \ }) #define __get_user(x, ptr) \ @@ -188,7 +188,7 @@ asm volatile ("\n" \ "+a" (__gu_ptr) \ : "i" (-EFAULT) \ : "memory"); \ - (x) = (typeof(*(ptr)))__gu_val; \ + (x) = (__force typeof(*(ptr)))__gu_val; \ break; \ } */ \ default: \ -- MST
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