unicore32: switch to generic sys_execve()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-and-Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn>

3 files changed, 1 insertions, 26 deletions

diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h
index 2abcf61c615d..d18a3be89b38 100644
--- a/arch/unicore32/include/uapi/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -12,3 +12,4 @@
 
 /* Use the standard ABI for syscalls. */
 #include <asm-generic/unistd.h>
+#define __ARCH_WANT_SYS_EXECVE
diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S
index 32648c99483a..7049350c790f 100644
--- a/arch/unicore32/kernel/entry.S
+++ b/arch/unicore32/kernel/entry.S
@@ -668,11 +668,6 @@ __cr_alignment:
 #endif
         .ltorg
 
-ENTRY(sys_execve)
-                add     r3, sp, #S_OFF
-                b       __sys_execve
-ENDPROC(sys_execve)
-
 ENTRY(sys_clone)
                 add     ip, sp, #S_OFF
                 stw     ip, [sp+], #4
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c
index 8b6e4cc57393..9680134b31f0 100644
--- a/arch/unicore32/kernel/sys.c
+++ b/arch/unicore32/kernel/sys.c
@@ -42,27 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
                         parent_tid, child_tid);
 }
 
-/* sys_execve() executes a new program.
- * This is called indirectly via a small wrapper
- */
-asmlinkage long __sys_execve(const char __user *filename,
-                          const char __user *const __user *argv,
-                          const char __user *const __user *envp,
-                          struct pt_regs *regs)
-{
-        int error;
-        struct filename *fn;
-
-        fn = getname(filename);
-        error = PTR_ERR(fn);
-        if (IS_ERR(fn))
-                goto out;
-        error = do_execve(fn->name, argv, envp, regs);
-        putname(fn);
-out:
-        return error;
-}
-
 /* Note: used by the compat code even in 64-bit Linux. */
 SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
                 unsigned long, prot, unsigned long, flags,