[PATCH 18/18] m68k/uaccess: fix sparse errors
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2014-12-14 16:53:28
Also in:
linux-m68k, lkml
Subsystem:
m68k architecture, the rest · Maintainers:
Geert Uytterhoeven, Linus Torvalds
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