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printk: move dump stack related code to lib/dump_stack.c

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dump_stack related stuff should belong to lib/dump_stack.c thus move them
there. Also conditionally compile lib/dump_stack.c since dump_stack code
does not make sense if printk is disabled.

Link: http://lkml.kernel.org/r/20180213072834.GA24784@dhcp-128-65.nay.redhat.com
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Dave Young <dyoung@redhat.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Dave Young
2018-02-13 15:28:34 +08:00
committed by Petr Mladek
parent 097114aa6e
commit e36df28f53
4 changed files with 67 additions and 63 deletions
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7
include/linux/printk.h
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@@ -201,6 +201,7 @@ void __init setup_log_buf(int early);
__printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
void dump_stack_print_info(const char *log_lvl);
void show_regs_print_info(const char *log_lvl);
extern asmlinkage void dump_stack(void) __cold;
extern void printk_safe_init(void);
extern void printk_safe_flush(void);
extern void printk_safe_flush_on_panic(void);
@@ -264,6 +265,10 @@ static inline void show_regs_print_info(const char *log_lvl)
{
}
static inline asmlinkage void dump_stack(void)
{
}
static inline void printk_safe_init(void)
{
}
@@ -279,8 +284,6 @@ static inline void printk_safe_flush_on_panic(void)
extern int kptr_restrict;
extern asmlinkage void dump_stack(void) __cold;
#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif