A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

[ARM] Fix get_user when passed a const pointer

Browse source 
Unfortunately, later gcc versions error out when our get_user is passed
a const pointer, since we write to a temporary variable declared as
typeof(*(p)) which propagates the const-ness.

Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Russell King 2005-11-18 14:22:03 +00:00 • committed by Russell King
commit d2c5b69099
3 changed files with 2 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/asm-arm/uaccess.h
View file

@ -100,7 +100,6 @@ static inline void set_fs (mm_segment_t fs)
extern int __get_user_1(void *);
extern int __get_user_2(void *);
extern int __get_user_4(void *);
extern int __get_user_8(void *);
extern int __get_user_bad(void);
#define __get_user_x(__r2,__p,__e,__s,__i...) \
@ -114,7 +113,7 @@ extern int __get_user_bad(void);
#define get_user(x,p) \
({ \
const register typeof(*(p)) __user *__p asm("r0") = (p);\
register typeof(*(p)) __r2 asm("r2"); \
register unsigned int __r2 asm("r2"); \
register int __e asm("r0"); \
switch (sizeof(*(__p))) { \
case 1: \
@ -126,12 +125,9 @@ extern int __get_user_bad(void);
case 4: \
__get_user_x(__r2, __p, __e, 4, "lr"); \
break; \
case 8: \
__get_user_x(__r2, __p, __e, 8, "lr"); \
break; \
default: __e = __get_user_bad(); break; \
} \
x = __r2; \
x = (typeof(*(p))) __r2; \
__e; \
})