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| author | Michael S. Tsirkin <mst@redhat.com> | 2014-12-12 01:56:04 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-01-13 15:23:23 +0200 |
| commit | 9b7accb286982e0df140b3accae8216656b3ef37 (patch) | |
| tree | 7ae054999274f93baf5718f6536d8635f052f166 | |
| parent | cad1c0dfc8961abeb92e5afbfa275b6122501e5f (diff) | |
| download | linux-9b7accb286982e0df140b3accae8216656b3ef37.tar.gz linux-9b7accb286982e0df140b3accae8216656b3ef37.tar.bz2 linux-9b7accb286982e0df140b3accae8216656b3ef37.zip | |
sparc32/uaccess: fix sparse errors
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>
Acked-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/include/asm/uaccess_32.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h index 9634d086fc56..8b571a0db0f6 100644 --- a/arch/sparc/include/asm/uaccess_32.h +++ b/arch/sparc/include/asm/uaccess_32.h @@ -164,7 +164,7 @@ case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ -} } else { __gu_val = 0; __gu_ret = -EFAULT; } x = (type) __gu_val; __gu_ret; }) +} } else { __gu_val = 0; __gu_ret = -EFAULT; } x = (__force type) __gu_val; __gu_ret; }) #define __get_user_check_ret(x,addr,size,type,retval) ({ \ register unsigned long __gu_val __asm__ ("l1"); \ @@ -175,7 +175,7 @@ case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ default: if (__get_user_bad()) return retval; \ -} x = (type) __gu_val; } else return retval; }) +} x = (__force type) __gu_val; } else return retval; }) #define __get_user_nocheck(x,addr,size,type) ({ \ register int __gu_ret; \ @@ -186,7 +186,7 @@ case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ -} x = (type) __gu_val; __gu_ret; }) +} x = (__force type) __gu_val; __gu_ret; }) #define __get_user_nocheck_ret(x,addr,size,type,retval) ({ \ register unsigned long __gu_val __asm__ ("l1"); \ @@ -196,7 +196,7 @@ case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ default: if (__get_user_bad()) return retval; \ -} x = (type) __gu_val; }) +} x = (__force type) __gu_val; }) #define __get_user_asm(x,size,addr,ret) \ __asm__ __volatile__( \ |