c6x: switch to generic kernel_execve

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 8 insertions, 7 deletions

diff --git a/arch/c6x/include/asm/unistd.h b/arch/c6x/include/asm/unistd.h
index 6d54ea4262eb..1ce3a6f2372b 100644
--- a/arch/c6x/include/asm/unistd.h
+++ b/arch/c6x/include/asm/unistd.h
@@ -16,6 +16,8 @@
 #if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL)
 #define _ASM_C6X_UNISTD_H
 
+#define __ARCH_WANT_KERNEL_EXECVE
+
 /* Use the standard ABI for syscalls. */
 #include <asm-generic/unistd.h>
 
diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S
index 6e6bd9d3d9cc..32e3683da718 100644
--- a/arch/c6x/kernel/entry.S
+++ b/arch/c6x/kernel/entry.S
@@ -420,6 +420,12 @@ ENTRY(ret_from_kernel_thread)
         BNOP    .S2     B11,5   /* jump to sys_exit */
 ENDPROC(ret_from_kernel_thread)
 
+ENTRY(ret_from_kernel_execve)
+        GET_THREAD_INFO A12
+        BNOP    .S2     syscall_exit,4
+        ADD     .D2X    A4,-8,SP
+ENDPROC(ret_from_kernel_execve)
+
         ;;
         ;; These are the interrupt handlers, responsible for calling __do_IRQ()
         ;; int6 is used for syscalls (see _system_call entry)
@@ -613,13 +619,6 @@ ENTRY(sys_sigaltstack)
         NOP     4
 ENDPROC(sys_sigaltstack)
 
-        ;; kernel_execve
-ENTRY(kernel_execve)
-        MVK     .S2     __NR_execve,B0
-        SWE
-        BNOP    .S2     B3,5
-ENDPROC(kernel_execve)
-
         ;;
         ;; Special system calls
         ;; return address is in B3