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-rw-r--r--include/asm-generic/bug.h6
-rw-r--r--lib/Kconfig.debug10
2 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index c8e7126bc26e..2d9f61346dab 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -17,6 +17,12 @@
#define BUG_GET_TAINT(bug) ((bug)->flags >> 8)
#endif
+#ifdef CONFIG_DEBUG_BUGVERBOSE_DETAILED
+# define WARN_CONDITION_STR(cond_str) cond_str
+#else
+# define WARN_CONDITION_STR(cond_str)
+#endif
+
#ifndef __ASSEMBLY__
#include <linux/panic.h>
#include <linux/printk.h>
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ebe33181b6e6..ef00752a2b67 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -206,6 +206,16 @@ config DEBUG_BUGVERBOSE
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
+config DEBUG_BUGVERBOSE_DETAILED
+ bool "Verbose WARN_ON_ONCE() reporting (adds 100K)" if DEBUG_BUGVERBOSE
+ help
+ Say Y here to make WARN_ON_ONCE() output the condition string of the
+ warning, in addition to the file name and line number.
+ This helps debugging, but costs about 100K of memory.
+
+ Say N if unsure.
+
+
endmenu # "printk and dmesg options"
config DEBUG_KERNEL