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[PARISC] Disable LWS debugging

The LWS debugging code on parisc is wrongly enabled due to a bug in the
use of the preprocessor directives. This debugging code is not thread
safe and causes problems with a recent glibc on SMP kernels.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Aurelien Jarno 18 年之前
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共有 1 个文件被更改,包括 4 次插入4 次删除
  1. 4 4
      arch/parisc/kernel/syscall.S

+ 4 - 4
arch/parisc/kernel/syscall.S

@@ -501,7 +501,7 @@ lws_compare_and_swap:
 	shlw	%r20, 4, %r20
 	add	%r20, %r28, %r20
 
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/*	
 		DEBUG, check for deadlock! 
 		If the thread register values are the same
@@ -550,7 +550,7 @@ cas_wouldblock:
 		perspective
 	*/
 cas_action:
-#if defined CONFIG_SMP && defined ENABLE_LWS_DEBUG
+#if defined CONFIG_SMP && ENABLE_LWS_DEBUG
 	/* DEBUG */
 	mfctl	%cr27, %r1
 	stw	%r1, 4(%sr2,%r20)
@@ -562,7 +562,7 @@ cas_action:
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
 # endif
@@ -576,7 +576,7 @@ cas_action:
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif