+extern void dump_stack(void) __cold;
+
+enum {
+ DUMP_PREFIX_NONE,
+ DUMP_PREFIX_ADDRESS,
+ DUMP_PREFIX_OFFSET
+};
+extern void hex_dump_to_buffer(const void *buf, size_t len,
+ int rowsize, int groupsize,
+ char *linebuf, size_t linebuflen, bool ascii);
+extern void print_hex_dump(const char *level, const char *prefix_str,
+ int prefix_type, int rowsize, int groupsize,
+ const void *buf, size_t len, bool ascii);
+extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
+ const void *buf, size_t len);
+#define hex_asc(x) "0123456789abcdef"[x]
+
+#define pr_emerg(fmt, arg...) \
+ printk(KERN_EMERG fmt, ##arg)
+#define pr_alert(fmt, arg...) \
+ printk(KERN_ALERT fmt, ##arg)
+#define pr_crit(fmt, arg...) \
+ printk(KERN_CRIT fmt, ##arg)
+#define pr_err(fmt, arg...) \
+ printk(KERN_ERR fmt, ##arg)
+#define pr_warning(fmt, arg...) \
+ printk(KERN_WARNING fmt, ##arg)
+#define pr_notice(fmt, arg...) \
+ printk(KERN_NOTICE fmt, ##arg)
+#define pr_info(fmt, arg...) \
+ printk(KERN_INFO fmt, ##arg)