x86: add ENDPROC() markers

The ENDPROCs() were not used everywhere.  Some code used just END() instead,
while other code used nothing.  um/sys-i386/checksum.S didn't #include
<linux/linkage.h> .  I also got confused because gcc puts the
.type near the ENTRY, while ENDPROC puts it on the opposite end.

Signed off by: John Reiser <jreiser@BitWagon.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

arch/x86/lib/semaphore_32.S

@@ -49,7 +49,7 @@ ENTRY(__down_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed)
+	ENDPROC(__down_failed)
 
 ENTRY(__down_failed_interruptible)
 	CFI_STARTPROC
@@ -70,7 +70,7 @@ ENTRY(__down_failed_interruptible)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed_interruptible)
+	ENDPROC(__down_failed_interruptible)
 
 ENTRY(__down_failed_trylock)
 	CFI_STARTPROC
@@ -91,7 +91,7 @@ ENTRY(__down_failed_trylock)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__down_failed_trylock)
+	ENDPROC(__down_failed_trylock)
 
 ENTRY(__up_wakeup)
 	CFI_STARTPROC
@@ -112,7 +112,7 @@ ENTRY(__up_wakeup)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__up_wakeup)
+	ENDPROC(__up_wakeup)
 
 /*
  * rw spinlock fallbacks
@@ -132,7 +132,7 @@ ENTRY(__write_lock_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__write_lock_failed)
+	ENDPROC(__write_lock_failed)
 
 ENTRY(__read_lock_failed)
 	CFI_STARTPROC
@@ -148,7 +148,7 @@ ENTRY(__read_lock_failed)
 	ENDFRAME
 	ret
 	CFI_ENDPROC
-	END(__read_lock_failed)
+	ENDPROC(__read_lock_failed)
 
 #endif
 
@@ -170,7 +170,7 @@ ENTRY(call_rwsem_down_read_failed)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_down_read_failed)
+	ENDPROC(call_rwsem_down_read_failed)
 
 ENTRY(call_rwsem_down_write_failed)
 	CFI_STARTPROC
@@ -182,7 +182,7 @@ ENTRY(call_rwsem_down_write_failed)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_down_write_failed)
+	ENDPROC(call_rwsem_down_write_failed)
 
 ENTRY(call_rwsem_wake)
 	CFI_STARTPROC
@@ -196,7 +196,7 @@ ENTRY(call_rwsem_wake)
 	CFI_ADJUST_CFA_OFFSET -4
 1:	ret
 	CFI_ENDPROC
-	END(call_rwsem_wake)
+	ENDPROC(call_rwsem_wake)
 
 /* Fix up special calling conventions */
 ENTRY(call_rwsem_downgrade_wake)
@@ -214,6 +214,6 @@ ENTRY(call_rwsem_downgrade_wake)
 	CFI_ADJUST_CFA_OFFSET -4
 	ret
 	CFI_ENDPROC
-	END(call_rwsem_downgrade_wake)
+	ENDPROC(call_rwsem_downgrade_wake)
 
 #endif

include/linux/linkage.h

@@ -57,6 +57,10 @@
   .size name, .-name
 #endif
 
+/* If symbol 'name' is treated as a subroutine (gets called, and returns)
+ * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
+ * static analysis tools such as stack depth analyzer.
+ */
 #ifndef ENDPROC
 #define ENDPROC(name) \
   .type name, @function; \