Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / arch / x86 / include / asm / uaccess.h

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index fd91722315c824d0878596117b7a45b43076a057..30269dafec47916e0f46866fa9cb3c19e93f9828 100644 (file)
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -319,10 +319,10 @@ do {                                                                      \
 #define __get_user_asm_u64(x, ptr, retval, errret)                     \
 ({                                                                     \
        __typeof__(ptr) __ptr = (ptr);                                  \
-       asm volatile(ASM_STAC "\n"                                      \
+       asm volatile("\n"                                       \
                     "1:        movl %2,%%eax\n"                        \
                     "2:        movl %3,%%edx\n"                        \
-                    "3: " ASM_CLAC "\n"                                \
+                    "3:\n"                             \
                     ".section .fixup,\"ax\"\n"                         \
                     "4:        mov %4,%0\n"                            \
                     "  xorl %%eax,%%eax\n"                             \
@@ -331,7 +331,7 @@ do {                                                                        \
                     ".previous\n"                                      \
                     _ASM_EXTABLE(1b, 4b)                               \
                     _ASM_EXTABLE(2b, 4b)                               \
-                    : "=r" (retval), "=A"(x)                           \
+                    : "=r" (retval), "=&A"(x)                          \
                     : "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1), \
                       "i" (errret), "0" (retval));                     \
 })
@@ -562,7 +562,6 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
 extern __must_check long
 strncpy_from_user(char *dst, const char __user *src, long count);
 
-extern __must_check long strlen_user(const char __user *str);
 extern __must_check long strnlen_user(const char __user *str, long n);
 
 unsigned long __must_check clear_user(void __user *mem, unsigned long len);
@@ -700,14 +699,15 @@ extern struct movsl_mask {
 #define unsafe_put_user(x, ptr, err_label)                                     \
 do {                                                                           \
        int __pu_err;                                                           \
-       __put_user_size((x), (ptr), sizeof(*(ptr)), __pu_err, -EFAULT);         \
+       __typeof__(*(ptr)) __pu_val = (x);                                      \
+       __put_user_size(__pu_val, (ptr), sizeof(*(ptr)), __pu_err, -EFAULT);    \
        if (unlikely(__pu_err)) goto err_label;                                 \
 } while (0)
 
 #define unsafe_get_user(x, ptr, err_label)                                     \
 do {                                                                           \
        int __gu_err;                                                           \
-       unsigned long __gu_val;                                                 \
+       __inttype(*(ptr)) __gu_val;                                             \
        __get_user_size(__gu_val, (ptr), sizeof(*(ptr)), __gu_err, -EFAULT);    \
        (x) = (__force __typeof__(*(ptr)))__gu_val;                             \
        if (unlikely(__gu_err)) goto err_label;                                 \