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Subject[patch] nuke unused smp_msg_data, smp_src_cpu & smp_msg_id
Patch to remove some declarations that are so dead it's not even funny

I believe the MSG_* macros shouldn't be there either, but it looks
like some PPC{,64} and SPARC code may still rely on them.

diff -Nru a/include/linux/smp.h b/include/linux/smp.h
--- a/include/linux/smp.h Wed Apr 9 14:49:49 2003
+++ b/include/linux/smp.h Wed Apr 9 14:49:49 2003
@@ -74,10 +74,6 @@
extern int smp_threads_ready;

-extern volatile unsigned long smp_msg_data;
-extern volatile int smp_src_cpu;
-extern volatile int smp_msg_id;
#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */
#define MSG_ALL 0x8001

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