* unwind.c fix for spinlock-debug compilation
@ 2003-09-09 3:48 Peter Chubb
0 siblings, 0 replies; only message in thread
From: Peter Chubb @ 2003-09-09 3:48 UTC (permalink / raw)
To: linux-ia64
If you try to compile 2.6.0-test[45] with spinlock debugging on, then
unwind.c won't compile, because it uses a #define magic that hides
the variable in the spinlock debugging code (also called magic)
Suggested patch appended.
=== arch/ia64/kernel/unwind.c 1.32 vs edited ==--- 1.32/arch/ia64/kernel/unwind.c Sat Jul 26 11:42:20 2003
+++ edited/arch/ia64/kernel/unwind.c Tue Sep 9 13:38:35 2003
@@ -1171,9 +1171,10 @@
static inline unw_hash_index_t
hash (unsigned long ip)
{
-# define magic 0x9e3779b97f4a7c16 /* based on (sqrt(5)/2-1)*2^64 */
+# define hashmagic 0x9e3779b97f4a7c16 /* based on (sqrt(5)/2-1)*2^64 */
- return (ip >> 4)*magic >> (64 - UNW_LOG_HASH_SIZE);
+ return (ip >> 4)*hashmagic >> (64 - UNW_LOG_HASH_SIZE);
+#undef hashmagic
}
static inline long
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2003-09-09 3:48 unwind.c fix for spinlock-debug compilation Peter Chubb
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