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printk: add dummy routine for when CONFIG_PRINTK=n 

There are missing dummy routines for log_buf_addr_get() and
log_buf_len_get() for when CONFIG_PRINTK is not set causing build
failures.

This patch adds these dummy routines at the appropriate location.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Pranith Kumar 2015-01-26 12:58:43 -08:00 committed by Linus Torvalds
parent 17636faada
commit 07261edb97
1 changed files with 12 additions and 3 deletions
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15
include/linux/printk.h
View File

@ -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)
{
}