ac5622418b
Fix <linux/kmsg_dump.h> when CONFIG_PRINTK is not enabled:
include/linux/kmsg_dump.h:56: error: 'EINVAL' undeclared (first use in this function)
include/linux/kmsg_dump.h:61: error: 'EINVAL' undeclared (first use in this function)
Looks like commit 595dd3d8bf ("kmsg_dump: fix build for
CONFIG_PRINTK=n") uses EINVAL without having the needed header file(s),
but I'm sure that I build tested that patch also. oh well.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* linux/include/kmsg_dump.h
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*
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* Copyright (C) 2009 Net Insight AB
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*
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* Author: Simon Kagstrom <simon.kagstrom@netinsight.net>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#ifndef _LINUX_KMSG_DUMP_H
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#define _LINUX_KMSG_DUMP_H
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#include <linux/errno.h>
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#include <linux/list.h>
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enum kmsg_dump_reason {
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KMSG_DUMP_OOPS,
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KMSG_DUMP_PANIC,
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KMSG_DUMP_KEXEC,
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KMSG_DUMP_RESTART,
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KMSG_DUMP_HALT,
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KMSG_DUMP_POWEROFF,
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KMSG_DUMP_EMERG,
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};
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/**
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* struct kmsg_dumper - kernel crash message dumper structure
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* @dump: The callback which gets called on crashes. The buffer is passed
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* as two sections, where s1 (length l1) contains the older
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* messages and s2 (length l2) contains the newer.
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* @list: Entry in the dumper list (private)
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* @registered: Flag that specifies if this is already registered
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*/
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struct kmsg_dumper {
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void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason,
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const char *s1, unsigned long l1,
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const char *s2, unsigned long l2);
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struct list_head list;
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int registered;
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};
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#ifdef CONFIG_PRINTK
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void kmsg_dump(enum kmsg_dump_reason reason);
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int kmsg_dump_register(struct kmsg_dumper *dumper);
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int kmsg_dump_unregister(struct kmsg_dumper *dumper);
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#else
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static inline void kmsg_dump(enum kmsg_dump_reason reason)
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{
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}
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static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
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{
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return -EINVAL;
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}
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static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
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{
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return -EINVAL;
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}
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#endif
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#endif /* _LINUX_KMSG_DUMP_H */
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