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asm-generic: uaccess.h cleanup

Browse source 
Like in 3.19, I once more have a multi-stage cleanup for one asm-generic
 header file, this time the work was done by Michael Tsirkin and cleans
 up the uaccess.h file in asm-generic, as well as all architectures for
 which the respective maintainers did not pick up his patches directly.
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Merge tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic uaccess.h cleanup from Arnd Bergmann:
 "Like in 3.19, I once more have a multi-stage cleanup for one
  asm-generic header file, this time the work was done by Michael
  Tsirkin and cleans up the uaccess.h file in asm-generic, as well as
  all architectures for which the respective maintainers did not pick up
  his patches directly"

* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (37 commits)
  sparc32: nocheck uaccess coding style tweaks
  sparc64: nocheck uaccess coding style tweaks
  xtensa: macro whitespace fixes
  sh: macro whitespace fixes
  parisc: macro whitespace fixes
  m68k: macro whitespace fixes
  m32r: macro whitespace fixes
  frv: macro whitespace fixes
  cris: macro whitespace fixes
  avr32: macro whitespace fixes
  arm64: macro whitespace fixes
  arm: macro whitespace fixes
  alpha: macro whitespace fixes
  blackfin: macro whitespace fixes
  sparc64: uaccess_64 macro whitespace fixes
  sparc32: uaccess_32 macro whitespace fixes
  avr32: whitespace fix
  sh: fix put_user sparse errors
  metag: fix put_user sparse errors
  ia64: fix put_user sparse errors
  ...
This commit is contained in:
Linus Torvalds 2015-02-18 10:02:24 -08:00
commit eaa0eda562
19 changed files with 582 additions and 499 deletions
Download patch file Download diff file Expand all files Collapse all files

32
arch/blackfin/include/asm/uaccess.h
View file

@ -27,7 +27,7 @@ static inline void set_fs(mm_segment_t fs)
current_thread_info()->addr_limit = fs;
}
#define segment_eq(a,b) ((a) == (b))
#define segment_eq(a, b) ((a) == (b))
#define VERIFY_READ 0
#define VERIFY_WRITE 1
@ -68,11 +68,11 @@ struct exception_table_entry {
* use the right size if we just have the right pointer type.
*/
#define put_user(x,p) \
#define put_user(x, p) \
({ \
int _err = 0; \
typeof(*(p)) _x = (x); \
typeof(*(p)) __user *_p = (p); \
typeof(*(p)) __user *_p = (p); \
if (!access_ok(VERIFY_WRITE, _p, sizeof(*(_p)))) {\
_err = -EFAULT; \
} \
@ -89,10 +89,10 @@ struct exception_table_entry {
break; \
case 8: { \
long _xl, _xh; \
_xl = ((long *)&_x)[0]; \
_xh = ((long *)&_x)[1]; \
__put_user_asm(_xl, ((long __user *)_p)+0, ); \
__put_user_asm(_xh, ((long __user *)_p)+1, ); \
_xl = ((__force long *)&_x)[0]; \
_xh = ((__force long *)&_x)[1]; \
__put_user_asm(_xl, ((__force long __user *)_p)+0, );\
__put_user_asm(_xh, ((__force long __user *)_p)+1, );\
} break; \
default: \
_err = __put_user_bad(); \
@ -102,7 +102,7 @@ struct exception_table_entry {
_err; \
})
#define __put_user(x,p) put_user(x,p)
#define __put_user(x, p) put_user(x, p)
static inline int bad_user_access_length(void)
{
panic("bad_user_access_length");
@ -121,10 +121,10 @@ static inline int bad_user_access_length(void)
#define __ptr(x) ((unsigned long __force *)(x))
#define __put_user_asm(x,p,bhw) \
#define __put_user_asm(x, p, bhw) \
__asm__ (#bhw"[%1] = %0;\n\t" \
: /* no outputs */ \
:"d" (x),"a" (__ptr(p)) : "memory")
:"d" (x), "a" (__ptr(p)) : "memory")
#define get_user(x, ptr) \
({ \
@ -136,10 +136,10 @@ static inline int bad_user_access_length(void)
BUILD_BUG_ON(ptr_size >= 8); \
switch (ptr_size) { \
case 1: \
__get_user_asm(_val, _p, B,(Z)); \
__get_user_asm(_val, _p, B, (Z)); \
break; \
case 2: \
__get_user_asm(_val, _p, W,(Z)); \
__get_user_asm(_val, _p, W, (Z)); \
break; \
case 4: \
__get_user_asm(_val, _p, , ); \
@ -147,11 +147,11 @@ static inline int bad_user_access_length(void)
} \
} else \
_err = -EFAULT; \
x = (typeof(*(ptr)))_val; \
x = (__force typeof(*(ptr)))_val; \
_err; \
})
#define __get_user(x,p) get_user(x,p)
#define __get_user(x, p) get_user(x, p)
#define __get_user_bad() (bad_user_access_length(), (-EFAULT))
@ -168,10 +168,10 @@ static inline int bad_user_access_length(void)
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
#define copy_to_user_ret(to,from,n,retval) ({ if (copy_to_user(to,from,n))\
#define copy_to_user_ret(to, from, n, retval) ({ if (copy_to_user(to, from, n))\
return retval; })
#define copy_from_user_ret(to,from,n,retval) ({ if (copy_from_user(to,from,n))\
#define copy_from_user_ret(to, from, n, retval) ({ if (copy_from_user(to, from, n))\
return retval; })
static inline unsigned long __must_check