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mm/hmm: fix build when HMM is disabled 

Combinatorial Kconfig is painfull. Withi this patch all below combination
build.

1)

2)
CONFIG_HMM_MIRROR=y

3)
CONFIG_DEVICE_PRIVATE=y

4)
CONFIG_DEVICE_PUBLIC=y

5)
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PUBLIC=y

6)
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PRIVATE=y

7)
CONFIG_DEVICE_PRIVATE=y
CONFIG_DEVICE_PUBLIC=y

8)
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_DEVICE_PUBLIC=y

Link: http://lkml.kernel.org/r/20170826002149.20919-1-jglisse@redhat.com
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jérôme Glisse 2017-09-08 16:12:35 -07:00 committed by Linus Torvalds
parent 6b368cd4a4
commit de540a9763
1 changed files with 1 additions and 2 deletions
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3
include/linux/hmm.h
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@ -498,7 +498,7 @@ struct hmm_device {
struct hmm_device *hmm_device_new(void *drvdata);
void hmm_device_put(struct hmm_device *hmm_device);
#endif /* CONFIG_DEVICE_PRIVATE || CONFIG_DEVICE_PUBLIC */
#endif /* IS_ENABLED(CONFIG_HMM) */
/* Below are for HMM internal use only! Not to be used by device driver! */
#if IS_ENABLED(CONFIG_HMM_MIRROR)
@ -517,5 +517,4 @@ static inline void hmm_mm_init(struct mm_struct *mm) {}
#else /* IS_ENABLED(CONFIG_HMM) */
static inline void hmm_mm_destroy(struct mm_struct *mm) {}
static inline void hmm_mm_init(struct mm_struct *mm) {}
#endif /* IS_ENABLED(CONFIG_HMM) */
#endif /* LINUX_HMM_H */