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[PW_SID:990331] [RFC] riscv: Use 64-bit variable for output in __get_user_asm #757

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[PW_SID:990331] [RFC] riscv: Use 64-bit variable for output in __get_user_asm #757

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8 changes: 6 additions & 2 deletions arch/riscv/include/asm/uaccess.h
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Original file line number Diff line number Diff line change
Expand Up @@ -98,12 +98,16 @@ static inline unsigned long __untagged_addr_remote(struct mm_struct *mm, unsigne

#ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
#define __get_user_asm(insn, x, ptr, label) \
do { \
u64 __tmp; \
asm_goto_output( \
"1:\n" \
" " insn " %0, %1\n" \
_ASM_EXTABLE_UACCESS_ERR(1b, %l2, %0) \
: "=&r" (x) \
: "m" (*(ptr)) : : label)
: "=&r" (__tmp) \
: "m" (*(ptr)) : : label); \
(x) = (__typeof__(x))__tmp; \
} while (0)
#else /* !CONFIG_CC_HAS_ASM_GOTO_OUTPUT */
#define __get_user_asm(insn, x, ptr, label) \
do { \
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