The patch titled
Subject: printk: add dummy routine for when CONFIG_PRINTK=n
has been added to the -mm tree. Its filename is
printk-add-dummy-routine-for-when-config_printk=n.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/printk-add-dummy-routine-for-when-config_printk%3Dn.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/printk-add-dummy-routine-for-when-config_printk%3Dn.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Pranith Kumar <bobby.prani@xxxxxxxxx>
Subject: 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@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Reviewed-by: Petr Mladek <pmladek@xxxxxxx>
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/printk.h | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff -puN include/linux/printk.h~printk-add-dummy-routine-for-when-config_printk=n include/linux/printk.h
--- a/include/linux/printk.h~printk-add-dummy-routine-for-when-config_printk=n
+++ a/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)
{
}
_
Patches currently in -mm which might be from bobby.prani@xxxxxxxxx are
printk-add-dummy-routine-for-when-config_printk=n.patch
linux-next.patch
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