diff options
| author | Olof Johansson <olof@lixom.net> | 2017-05-19 09:54:47 +0300 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2017-05-19 09:54:47 +0300 |
| commit | 5252d73756f318f182f2316acd78a6532041414d (patch) | |
| tree | b082478fca4f00f599bb2ed1547b2652c2bea155 /arch/arm64/include/asm/uaccess.h | |
| parent | e84188852a7239d7a144af12f7e5dac8fa88600b (diff) | |
| parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
| download | linux-5252d73756f318f182f2316acd78a6532041414d.tar.xz | |
Merge tag 'v4.12-rc1' into fixes
We've received a few fixes branches with -rc1 as base, but our contents was
still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on
hat was actually merged.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm64/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index ba497172610d..7b8a04789cef 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -69,20 +69,21 @@ static inline void set_fs(mm_segment_t fs) */ #define __range_ok(addr, size) \ ({ \ + unsigned long __addr = (unsigned long __force)(addr); \ unsigned long flag, roksum; \ __chk_user_ptr(addr); \ asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls" \ : "=&r" (flag), "=&r" (roksum) \ - : "1" (addr), "Ir" (size), \ + : "1" (__addr), "Ir" (size), \ "r" (current_thread_info()->addr_limit) \ : "cc"); \ flag; \ }) /* - * When dealing with data aborts or instruction traps we may end up with - * a tagged userland pointer. Clear the tag to get a sane pointer to pass - * on to access_ok(), for instance. + * When dealing with data aborts, watchpoints, or instruction traps we may end + * up with a tagged userland pointer. Clear the tag to get a sane pointer to + * pass on to access_ok(), for instance. */ #define untagged_addr(addr) sign_extend64(addr, 55) @@ -230,7 +231,7 @@ do { \ (err), ARM64_HAS_UAO); \ break; \ case 8: \ - __get_user_asm("ldr", "ldtr", "%", __gu_val, (ptr), \ + __get_user_asm("ldr", "ldtr", "%x", __gu_val, (ptr), \ (err), ARM64_HAS_UAO); \ break; \ default: \ @@ -297,7 +298,7 @@ do { \ (err), ARM64_HAS_UAO); \ break; \ case 8: \ - __put_user_asm("str", "sttr", "%", __pu_val, (ptr), \ + __put_user_asm("str", "sttr", "%x", __pu_val, (ptr), \ (err), ARM64_HAS_UAO); \ break; \ default: \ |