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ANDROID: Four part re-add of asm-goto usage [3/4]

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Re-add "x86/uaccess: Don't leak the AC flag into __put_user() value evaluation"
This reverts commit a4bd9e975e.

Bug: 120440614
Bug: 132629930
Signed-off-by: Ram Muthiah <rammuthiah@google.com>
Change-Id: Iebfe5df8e2e09b6eeeaae343ec6deeda7f45c975
This commit is contained in:
Ram Muthiah 2019-10-16 16:05:34 -07:00
commit 265694b7ec
1 changed files with 4 additions and 2 deletions
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6
arch/x86/include/asm/uaccess.h
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@ -282,7 +282,7 @@ do { \
__put_user_goto(x, ptr, "l", "k", "ir", label); \
break; \
case 8: \
__put_user_goto_u64((__typeof__(*ptr))(x), ptr, label); \
__put_user_goto_u64(x, ptr, label); \
break; \
default: \
__put_user_bad(); \
@ -429,8 +429,10 @@ do { \
({ \
__label__ __pu_label; \
int __pu_err = -EFAULT; \
__typeof__(*(ptr)) __pu_val; \
__pu_val = x; \
__uaccess_begin(); \
__put_user_size((x), (ptr), (size), __pu_label); \
__put_user_size(__pu_val, (ptr), (size), __pu_label); \
__pu_err = 0; \
__pu_label: \
__uaccess_end(); \