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authorBorislav Petkov <bp@suse.de>2014-05-22 10:43:37 +1000
committerStephen Rothwell <sfr@canb.auug.org.au>2014-05-22 10:43:37 +1000
commit0bbd6c56355cec35a773f69d030797a38bdc6750 (patch)
tree3eedc84190d2bc54125616ea6ba0d362dc8bff1a /include/linux/printk.h
parent1bc72d38272ff09d0df8aeba1532722b415d5099 (diff)
kernel/printk: use symbolic defines for console loglevels
... instead of naked numbers. Stuff in sysrq.c used to set it to 8 which is supposed to mean above default level so set it to DEBUG instead as we're terminating/killing all tasks and we want to be verbose there. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Cc: Joe Perches <joe@perches.com> Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/printk.h')
-rw-r--r--include/linux/printk.h15
1 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 37f3a6589c1c..319ff7e53efb 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -30,6 +30,17 @@ static inline const char *printk_skip_level(const char *buffer)
return buffer;
}
+/* printk's without a loglevel use this.. */
+#define DEFAULT_MESSAGE_LOGLEVEL CONFIG_DEFAULT_MESSAGE_LOGLEVEL
+
+/* We show everything that is MORE important than this.. */
+#define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */
+#define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */
+#define CONSOLE_LOGLEVEL_QUIET 4 /* Shhh ..., when booted with "quiet" */
+#define CONSOLE_LOGLEVEL_DEFAULT 7 /* anything MORE serious than KERN_DEBUG */
+#define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
+#define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
+
extern int console_printk[];
#define console_loglevel (console_printk[0])
@@ -39,13 +50,13 @@ extern int console_printk[];
static inline void console_silent(void)
{
- console_loglevel = 0;
+ console_loglevel = CONSOLE_LOGLEVEL_SILENT;
}
static inline void console_verbose(void)
{
if (console_loglevel)
- console_loglevel = 15;
+ console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
}
struct va_format {