Even currently in U-Boot we don't really use kernel debug levels
we do have quite a lot of code that was copy-pasted from Linux kernel
and so contains symbols like KERN_DEBUG and alike.
We used to just define those symbols which is fine if it is used in
constructions like:
----------------->8--------------
printk(KERN_DEBUG "My debug message");
----------------->8--------------
But in other places where the symbol gets passed as a separate
argument (which we also have but luckily all of them are intself
dummy stubs in U-Boot) that won't work.
Now as a preparation to introduction of a real implementation of
print_hex_dump() we need those symbols to be defined as something real
so we're taking them as they are from Linux kernel.
Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
Cc: Stefan Roese <s...@denx.de>
Cc: Tom Rini <tr...@konsulko.com>
---
Changes v1 -> v2:
* This patch was only introduced in v2.
include/linux/compat.h | 9 +--------
include/linux/kern_levels.h | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+), 8 deletions(-)
create mode 100644 include/linux/kern_levels.h
diff --git a/include/linux/compat.h b/include/linux/compat.h
index e561ee3..0ce7d65 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -28,14 +28,7 @@ extern struct p_current *current;
#define printk printf
#define printk_once printf
-#define KERN_EMERG
-#define KERN_ALERT
-#define KERN_CRIT
-#define KERN_ERR
-#define KERN_WARNING
-#define KERN_NOTICE
-#define KERN_INFO
-#define KERN_DEBUG
+#include <linux/kern_levels.h>
#define GFP_ATOMIC ((gfp_t) 0)
#define GFP_KERNEL ((gfp_t) 0)
diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
new file mode 100644
index 0000000..c2ce155
--- /dev/null
+++ b/include/linux/kern_levels.h
@@ -0,0 +1,38 @@
+#ifndef __KERN_LEVELS_H__
+#define __KERN_LEVELS_H__
+
+#define KERN_SOH "\001" /* ASCII Start Of Header */
+#define KERN_SOH_ASCII '\001'
+
+#define KERN_EMERG KERN_SOH "0" /* system is unusable */
+#define KERN_ALERT KERN_SOH "1" /* action must be taken immediately */
+#define KERN_CRIT KERN_SOH "2" /* critical conditions */
+#define KERN_ERR KERN_SOH "3" /* error conditions */
+#define KERN_WARNING KERN_SOH "4" /* warning conditions */
+#define KERN_NOTICE KERN_SOH "5" /* normal but significant condition */
+#define KERN_INFO KERN_SOH "6" /* informational */
+#define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
+
+#define KERN_DEFAULT KERN_SOH "d" /* the default kernel loglevel */
+
+/*
+ * Annotation for a "continued" line of log printout (only done after a
+ * line that had no enclosing \n). Only to be used by core/arch code
+ * during early bootup (a continued line is not SMP-safe otherwise).
+ */
+#define KERN_CONT ""
+
+/* integer equivalents of KERN_<LEVEL> */
+#define LOGLEVEL_SCHED -2 /* Deferred messages from sched code
+ * are set to this special level */
+#define LOGLEVEL_DEFAULT -1 /* default (or last) loglevel */
+#define LOGLEVEL_EMERG 0 /* system is unusable */
+#define LOGLEVEL_ALERT 1 /* action must be taken immediately */
+#define LOGLEVEL_CRIT 2 /* critical conditions */
+#define LOGLEVEL_ERR 3 /* error conditions */
+#define LOGLEVEL_WARNING 4 /* warning conditions */
+#define LOGLEVEL_NOTICE 5 /* normal but significant
condition */
+#define LOGLEVEL_INFO 6 /* informational */
+#define LOGLEVEL_DEBUG 7 /* debug-level messages */
+
+#endif
--
2.5.5
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