[PATCH] lockdep: add print_ip_sym()

Provide a common print_ip_sym() function that prints the passed instruction
pointer as well as the symbol belonging to it.  Avoids adding a bunch of
#ifdef CONFIG_64BIT in order to get the printk format right on 32/64 bit
platforms.

Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index ad71ac0..849043c 100644 (file)
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -64,4 +64,18 @@ static inline void print_symbol(const char *fmt, unsigned long addr)
                       __builtin_extract_return_addr((void *)addr));
 }
 
+#ifndef CONFIG_64BIT
+#define print_ip_sym(ip)               \
+do {                                   \
+       printk("[<%08lx>]", ip);        \
+       print_symbol(" %s\n", ip);      \
+} while(0)
+#else
+#define print_ip_sym(ip)               \
+do {                                   \
+       printk("[<%016lx>]", ip);       \
+       print_symbol(" %s\n", ip);      \
+} while(0)
+#endif
+
 #endif /*_LINUX_KALLSYMS_H*/