Blackfin: delete fork func

We don't implement fork() since we are no-mmu, so redirect it to the
existing ENOSYS stub rather than adding a custom EINVAL one.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

3 files changed, 2 insertions, 12 deletions

diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 75ec9df5318b..3287222cba34 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -11,7 +11,7 @@
  */
 #define __NR_restart_syscall      0
 #define __NR_exit                 1
-#define __NR_fork                 2
+                                /* 2 __NR_fork not supported on nommu */
 #define __NR_read                 3
 #define __NR_write                4
 #define __NR_open                 5
diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S
index 686478f5f66b..f33792cc1a0d 100644
--- a/arch/blackfin/kernel/entry.S
+++ b/arch/blackfin/kernel/entry.S
@@ -64,16 +64,6 @@ ENTRY(_ret_from_fork)
         jump (p0);
 ENDPROC(_ret_from_fork)
 
-ENTRY(_sys_fork)
-        r0 = -EINVAL;
-#if (ANOMALY_05000371)
-        nop;
-        nop;
-        nop;
-#endif
-        rts;
-ENDPROC(_sys_fork)
-
 ENTRY(_sys_vfork)
         r0 = sp;
         r0 += 24;
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 84b5e3dbbcc8..80aa2535e2c9 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1377,7 +1377,7 @@ END(_ex_table)
 ENTRY(_sys_call_table)
         .long _sys_restart_syscall      /* 0 */
         .long _sys_exit
-        .long _sys_fork
+        .long _sys_ni_syscall   /* fork */
         .long _sys_read
         .long _sys_write
         .long _sys_open         /* 5 */