<ppsi/jiffies.h>: don't re-define time_after etc

Sometimes the macros may already be defined (e.g.: arch-bathos). Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

<ppsi/jiffies.h>: don't re-define time_after etc
Sometimes the macros may already be defined (e.g.: arch-bathos). Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
4e4aedc7 · Alessandro Rubini · c8b02aaa · 4e4aedc7
Commit 4e4aedc7 authored Jul 07, 2013 by Alessandro Rubini
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jiffies.h include/ppsi/jiffies.h +2 -1

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--- a/include/ppsi/jiffies.h
+++ b/include/ppsi/jiffies.h
@@ -25,6 +25,7 @@
 * good compiler would generate better code (and a really good compiler
 * wouldn't care). Gcc is currently neither.
 */
+#ifndef time_after /* Maybe someone else defined them already */
 #define time_after(a,b)		\
 	(typecheck(unsigned long, a) && \
 	 typecheck(unsigned long, b) && \
@@ -36,5 +37,5 @@
 	 typecheck(unsigned long, b) && \
 	 ((long)(a) - (long)(b) >= 0))
 #define time_before_eq(a,b)	time_after_eq(b,a)
-
+#endif /* ifndef */
 #endif