On the same model as get_user() versus __get_user(),
introduce __copy_inst_from_kernel_nofault() which doesn't
check address.
To be used by callers that have already checked that the adress
is a kernel address.
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/include/asm/inst.h | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h
index 80b6d74146c6..b49aae9f6f27 100644
--- a/arch/powerpc/include/asm/inst.h
+++ b/arch/powerpc/include/asm/inst.h
@@ -158,13 +158,10 @@ static inline char *__ppc_inst_as_str(char
str[PPC_INST_STR_LEN], ppc_inst_t x)
__str; \
})
-static inline int copy_inst_from_kernel_nofault(ppc_inst_t *inst, u32 *src)
+static inline int __copy_inst_from_kernel_nofault(ppc_inst_t *inst, u32 *src)
{
unsigned int val, suffix;
- if (unlikely(!is_kernel_addr((unsigned long)src)))
- return -ERANGE;
-
/* See https://github.com/ClangBuiltLinux/linux/issues/1521 */
#if defined(CONFIG_CC_IS_CLANG) && CONFIG_CLANG_VERSION < 140000
val = suffix = 0;
@@ -181,4 +178,12 @@ static inline int copy_inst_from_kernel_nofault(ppc_inst_t
*inst, u32 *src)
return -EFAULT;
}
+static inline int copy_inst_from_kernel_nofault(ppc_inst_t *inst, u32 *src)
+{
+ if (unlikely(!is_kernel_addr((unsigned long)src)))
+ return -ERANGE;
+
+ return __copy_inst_from_kernel_nofault(inst, src);
+}
+
#endif /* _ASM_POWERPC_INST_H */
--
2.35.1
