]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commitdiff
mips: get rid of unused __strnlen_user()
authorAl Viro <viro@zeniv.linux.org.uk>
Fri, 7 Apr 2017 21:59:07 +0000 (17:59 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 16 May 2017 03:40:32 +0000 (23:40 -0400)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/mips/include/asm/uaccess.h
arch/mips/lib/strnlen_user.S

index 14d5f2e049719e94c231a459bd653c8553f9bdb6..9700251159b1d7727e55bd71e768d5dbbb265232 100644 (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);
 
index 860ea99fd70cc46ed393cf77bd5507a61753b6ca..e1bacf5a3abe5d9588c948ea336f539b11f7d480 100644 (file)
@@ -32,7 +32,6 @@ LEAF(__strnlen_\func\()_asm)
        and             v0, a0
        bnez            v0, .Lfault\@
 
-FEXPORT(__strnlen_\func\()_nocheck_asm)
        move            v0, a0
        PTR_ADDU        a1, a0                  # stop pointer
 1:
@@ -68,16 +67,12 @@ FEXPORT(__strnlen_\func\()_nocheck_asm)
 #ifndef CONFIG_EVA
        /* Set aliases */
        .global __strnlen_user_asm
-       .global __strnlen_user_nocheck_asm
        .set __strnlen_user_asm, __strnlen_kernel_asm
-       .set __strnlen_user_nocheck_asm, __strnlen_kernel_nocheck_asm
 EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
 #endif
 
 __BUILD_STRNLEN_ASM kernel
 EXPORT_SYMBOL(__strnlen_kernel_asm)
-EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm)
 
 #ifdef CONFIG_EVA
 
@@ -86,5 +81,4 @@ EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm)
 __BUILD_STRNLEN_ASM user
        .set pop
 EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
 #endif