diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:09:09 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:12:33 +0200 |
| commit | 0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch) | |
| tree | 94a8d419a470a4f9852ca397bb9bbe48db92ff5c /arch/mn10300/include/asm/uaccess.h | |
| parent | dca2d6ac09d9ef59ff46820d4f0c94b08a671202 (diff) | |
| parent | f39cdf25bf77219676ec5360980ac40b1a7e144a (diff) | |
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile
Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.
Diffstat (limited to 'arch/mn10300/include/asm/uaccess.h')
| -rw-r--r-- | arch/mn10300/include/asm/uaccess.h | 73 |
1 files changed, 39 insertions, 34 deletions
diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h index 8a3a4dd55763..167e10ff06d9 100644 --- a/arch/mn10300/include/asm/uaccess.h +++ b/arch/mn10300/include/asm/uaccess.h @@ -129,42 +129,47 @@ extern int fixup_exception(struct pt_regs *regs); struct __large_struct { unsigned long buf[100]; }; #define __m(x) (*(struct __large_struct *)(x)) -#define __get_user_nocheck(x, ptr, size) \ -({ \ - __typeof(*(ptr)) __gu_val; \ - unsigned long __gu_addr; \ - int __gu_err; \ - __gu_addr = (unsigned long) (ptr); \ - switch (size) { \ - case 1: __get_user_asm("bu"); break; \ - case 2: __get_user_asm("hu"); break; \ - case 4: __get_user_asm("" ); break; \ - default: __get_user_unknown(); break; \ - } \ - x = (__typeof__(*(ptr))) __gu_val; \ - __gu_err; \ +#define __get_user_nocheck(x, ptr, size) \ +({ \ + unsigned long __gu_addr; \ + int __gu_err; \ + __gu_addr = (unsigned long) (ptr); \ + switch (size) { \ + case 1: { \ + unsigned char __gu_val; \ + __get_user_asm("bu"); \ + (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ + break; \ + } \ + case 2: { \ + unsigned short __gu_val; \ + __get_user_asm("hu"); \ + (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ + break; \ + } \ + case 4: { \ + unsigned int __gu_val; \ + __get_user_asm(""); \ + (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ + break; \ + } \ + default: \ + __get_user_unknown(); \ + break; \ + } \ + __gu_err; \ }) -#define __get_user_check(x, ptr, size) \ -({ \ - __typeof__(*(ptr)) __gu_val; \ - unsigned long __gu_addr; \ - int __gu_err; \ - __gu_addr = (unsigned long) (ptr); \ - if (likely(__access_ok(__gu_addr,size))) { \ - switch (size) { \ - case 1: __get_user_asm("bu"); break; \ - case 2: __get_user_asm("hu"); break; \ - case 4: __get_user_asm("" ); break; \ - default: __get_user_unknown(); break; \ - } \ - } \ - else { \ - __gu_err = -EFAULT; \ - __gu_val = 0; \ - } \ - x = (__typeof__(*(ptr))) __gu_val; \ - __gu_err; \ +#define __get_user_check(x, ptr, size) \ +({ \ + int _e; \ + if (likely(__access_ok((unsigned long) (ptr), (size)))) \ + _e = __get_user_nocheck((x), (ptr), (size)); \ + else { \ + _e = -EFAULT; \ + (x) = (__typeof__(x))0; \ + } \ + _e; \ }) #define __get_user_asm(INSN) \ |