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kmsg_dump: fix build for CONFIG_PRINTK=n

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kmsg_dump() fails to build when CONFIG_PRINTK=n; provide stubs
for the kmsg_dump*() functions when CONFIG_PRINTK=n.

kernel/printk.c: In function 'kmsg_dump':
kernel/printk.c:1501: error: 'log_buf_len' undeclared (first use in this function)
kernel/printk.c:1502: error: 'logged_chars' undeclared (first use in this function)
kernel/printk.c:1506: error: 'log_buf' undeclared (first use in this function)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Randy Dunlap 2009-12-01 10:52:02 -08:00 • committed by David Woodhouse
parent 75352662c5
commit 595dd3d8bf
2 changed files with 17 additions and 1 deletions
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16
include/linux/kmsg_dump.h
View file

@ -35,10 +35,26 @@ struct kmsg_dumper {
int registered;
};
#ifdef CONFIG_PRINTK
void kmsg_dump(enum kmsg_dump_reason reason);
int kmsg_dump_register(struct kmsg_dumper *dumper);
int kmsg_dump_unregister(struct kmsg_dumper *dumper);
#else
static inline void kmsg_dump(enum kmsg_dump_reason reason)
{
}
static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
{
return -EINVAL;
}
static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
{
return -EINVAL;
}
#endif
#endif /* _LINUX_KMSG_DUMP_H */