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x86/mce: Add notifier_block forward declaration

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[ Upstream commit 704ae091b061082b37a9968621af4c290c641d50 ]

Without linux/irq.h, there is no declaration of notifier_block, leading to
a build warning:

In file included from arch/x86/kernel/cpu/mcheck/threshold.c:10:
arch/x86/include/asm/mce.h:151:46: error: 'struct notifier_block' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]

It's sufficient to declare the struct tag here, which avoids pulling in
more header files.

Fixes: 447ae3166702 ("x86: Don't include linux/irq.h from asm/hardirq.h")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Nicolai Stange <nstange@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20180817100156.3009043-1-arnd@arndb.de
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2018-08-17 12:01:36 +02:00 committed by Greg Kroah-Hartman
parent b7540b6235
commit e5ef973b13
1 changed files with 1 additions and 0 deletions
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arch/x86/include/asm/mce.h
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@ -200,6 +200,7 @@ enum mce_notifier_prios {
MCE_PRIO_LOWEST = 0,
};
struct notifier_block;
extern void mce_register_decode_chain(struct notifier_block *nb);
extern void mce_unregister_decode_chain(struct notifier_block *nb);