Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=60262e58e305f27d05eefeda172117521514f364
Commit: 60262e58e305f27d05eefeda172117521514f364
Parent: e7cf261b447ed7edbf7c10c046e078bda799afaf
Author: Al Viro <[EMAIL PROTECTED]>
AuthorDate: Thu Jul 26 17:46:19 2007 +0100
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Thu Jul 26 11:11:57 2007 -0700
arm unaligned.h annotations
Have put_unaligned() warn if types would be wrong
for assignment, slap force-casts where needed. Cast the
result of get_unaligned to typeof(*ptr). With that in
place we get proper typechecking, both from gcc and from sparse,
including that for bitwise types.
Signed-off-by: Al Viro <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
include/asm-arm/unaligned.h | 22 ++++++++++++----------
1 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/include/asm-arm/unaligned.h b/include/asm-arm/unaligned.h
index 795b9e5..8431f6e 100644
--- a/include/asm-arm/unaligned.h
+++ b/include/asm-arm/unaligned.h
@@ -60,24 +60,24 @@ extern int __bug_unaligned_x(const void *ptr);
__get_unaligned_4_be((__p+4)))
#define __get_unaligned_le(ptr)
\
- ({ \
+ ((__force typeof(*(ptr)))({ \
const __u8 *__p = (const __u8 *)(ptr); \
__builtin_choose_expr(sizeof(*(ptr)) == 1, *__p, \
__builtin_choose_expr(sizeof(*(ptr)) == 2,
__get_unaligned_2_le(__p), \
__builtin_choose_expr(sizeof(*(ptr)) == 4,
__get_unaligned_4_le(__p), \
__builtin_choose_expr(sizeof(*(ptr)) == 8,
__get_unaligned_8_le(__p), \
(void)__bug_unaligned_x(__p))))); \
- })
+ }))
#define __get_unaligned_be(ptr)
\
- ({ \
+ ((__force typeof(*(ptr)))({ \
const __u8 *__p = (const __u8 *)(ptr); \
__builtin_choose_expr(sizeof(*(ptr)) == 1, *__p, \
__builtin_choose_expr(sizeof(*(ptr)) == 2,
__get_unaligned_2_be(__p), \
__builtin_choose_expr(sizeof(*(ptr)) == 4,
__get_unaligned_4_be(__p), \
__builtin_choose_expr(sizeof(*(ptr)) == 8,
__get_unaligned_8_be(__p), \
(void)__bug_unaligned_x(__p))))); \
- })
+ }))
static inline void __put_unaligned_2_le(__u32 __v, register __u8 *__p)
@@ -131,15 +131,16 @@ static inline void __put_unaligned_8_be(const unsigned
long long __v, register _
*/
#define __put_unaligned_le(val,ptr) \
({ \
+ (void)sizeof(*(ptr) = (val)); \
switch (sizeof(*(ptr))) { \
case 1: \
*(ptr) = (val); \
break; \
- case 2: __put_unaligned_2_le((val),(__u8 *)(ptr)); \
+ case 2: __put_unaligned_2_le((__force u16)(val),(__u8 *)(ptr));
\
break; \
- case 4: __put_unaligned_4_le((val),(__u8 *)(ptr)); \
+ case 4: __put_unaligned_4_le((__force u32)(val),(__u8 *)(ptr));
\
break; \
- case 8: __put_unaligned_8_le((val),(__u8 *)(ptr)); \
+ case 8: __put_unaligned_8_le((__force u64)(val),(__u8 *)(ptr));
\
break; \
default: __bug_unaligned_x(ptr); \
break; \
@@ -149,15 +150,16 @@ static inline void __put_unaligned_8_be(const unsigned
long long __v, register _
#define __put_unaligned_be(val,ptr) \
({ \
+ (void)sizeof(*(ptr) = (val)); \
switch (sizeof(*(ptr))) { \
case 1: \
*(ptr) = (val); \
break; \
- case 2: __put_unaligned_2_be((val),(__u8 *)(ptr)); \
+ case 2: __put_unaligned_2_be((__force u16)(val),(__u8 *)(ptr));
\
break; \
- case 4: __put_unaligned_4_be((val),(__u8 *)(ptr)); \
+ case 4: __put_unaligned_4_be((__force u32)(val),(__u8 *)(ptr));
\
break; \
- case 8: __put_unaligned_8_be((val),(__u8 *)(ptr)); \
+ case 8: __put_unaligned_8_be((__force u64)(val),(__u8 *)(ptr));
\
break; \
default: __bug_unaligned_x(ptr); \
break; \
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
