xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mips: get rid of unused __strnlen_user()

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2017-04-07 17:59:07 -04:00
parent 10503bf943
commit 8f3ba02dec
2 changed files with 0 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
arch/mips/include/asm/uaccess.h
View File

@@ -1019,38 +1019,6 @@ strncpy_from_user(char *__to, const char __user *__from, long __len)
return res;
}
extern long __strnlen_kernel_nocheck_asm(const char __user *s, long n);
extern long __strnlen_user_nocheck_asm(const char __user *s, long n);
/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
static inline long __strnlen_user(const char __user *s, long n)
{
long res;
if (eva_kernel_access()) {
__asm__ __volatile__(
"move\t$4, %1\n\t"
"move\t$5, %2\n\t"
__MODULE_JAL(__strnlen_kernel_nocheck_asm)
"move\t%0, $2"
: "=r" (res)
: "r" (s), "r" (n)
: "$2", "$4", "$5", __UA_t0, "$31");
} else {
might_fault();
__asm__ __volatile__(
"move\t$4, %1\n\t"
"move\t$5, %2\n\t"
__MODULE_JAL(__strnlen_user_nocheck_asm)
"move\t%0, $2"
: "=r" (res)
: "r" (s), "r" (n)
: "$2", "$4", "$5", __UA_t0, "$31");
}
return res;
}
extern long __strnlen_kernel_asm(const char __user *s, long n);
extern long __strnlen_user_asm(const char __user *s, long n);