1 files changed, 15 insertions, 6 deletions

diff --git a/include/linux/printk.h b/include/linux/printk.h
index c8f170324e64..baa3f97d8ce8 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -10,9 +10,6 @@
 extern const char linux_banner[];
 extern const char linux_proc_banner[];
 
-extern char *log_buf_addr_get(void);
-extern u32 log_buf_len_get(void);
-
 static inline int printk_get_level(const char *buffer)
 {
         if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
@@ -163,6 +160,8 @@ extern int kptr_restrict;
 
 extern void wake_up_klogd(void);
 
+char *log_buf_addr_get(void);
+u32 log_buf_len_get(void);
 void log_buf_kexec_setup(void);
 void __init setup_log_buf(int early);
 void dump_stack_set_arch_desc(const char *fmt, ...);
@@ -198,6 +197,16 @@ static inline void wake_up_klogd(void)
 {
 }
 
+static inline char *log_buf_addr_get(void)
+{
+        return NULL;
+}
+
+static inline u32 log_buf_len_get(void)
+{
+        return 0;
+}
+
 static inline void log_buf_kexec_setup(void)
 {
 }
@@ -408,9 +417,9 @@ enum {
         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 int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
+                              int groupsize, char *linebuf, size_t linebuflen,
+                              bool ascii);
 #ifdef CONFIG_PRINTK
 extern void print_hex_dump(const char *level, const char *prefix_str,
                            int prefix_type, int rowsize, int groupsize,