parisc: switch to generic kernel_execve()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 7 insertions, 32 deletions

diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index d61de64f990a..447e03c48232 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -995,6 +995,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 #define __ARCH_WANT_SYS_RT_SIGACTION
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 #define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_KERNEL_EXECVE
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 18d05e7373b5..a26917da9b2f 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -741,28 +741,12 @@ ENTRY(ret_from_kernel_thread)
         ldi     0, %r26
 ENDPROC(ret_from_kernel_thread)
 
-        .import sys_execve, code
-ENTRY(__execve)
-        copy    %r2, %r15
-        copy    %r30, %r16
-        ldo     PT_SZ_ALGN(%r30), %r30
-        STREG   %r26, PT_GR26(%r16)
-        STREG   %r25, PT_GR25(%r16)
-        STREG   %r24, PT_GR24(%r16)
-#ifdef CONFIG_64BIT
-        ldo     -16(%r30),%r29          /* Reference param save area */
-#endif
-        BL      sys_execve, %r2
-        copy    %r16, %r26
-
-        cmpib,=,n 0,%r28,intr_return    /* forward */
-
-        /* yes, this will trap and die. */
-        copy    %r15, %r2
-        copy    %r16, %r30
-        bv      %r0(%r2)
-        nop
-ENDPROC(__execve)
+ENTRY(ret_from_kernel_execve)
+        mfctl   %cr30, %r1
+        ldo     THREAD_SZ_ALGN(%r1), %r30
+        b       intr_return     /* forward */
+        copy    %r26,%r16       /* pt_regs into r16 */
+ENDPROC(ret_from_kernel_execve)
 
 
         /*
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b7b4126774e0..f3f6408bfb4f 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -337,16 +337,6 @@ out:
         return error;
 }
 
-extern int __execve(const char *filename,
-                    const char *const argv[],
-                    const char *const envp[], struct task_struct *task);
-int kernel_execve(const char *filename,
-                  const char *const argv[],
-                  const char *const envp[])
-{
-        return __execve(filename, argv, envp, current);
-}
-
 unsigned long
 get_wchan(struct task_struct *p)
 {