summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2018-04-10 16:29:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-11 10:28:31 -0700
commit9d8a463a7016e9e5578a561588a18acef139919c (patch)
tree309e8df480a02103e89bd3213a1bdfcb8d7d24a2 /include
parent18be460eeb2cd3f4bfb6498b10ce5b800f9a20ea (diff)
mm/hmm: fix header file if/else/endif maze, again
The last fix was still wrong, as we need the inline dummy functions also for the case that CONFIG_HMM is enabled but CONFIG_HMM_MIRROR is not: kernel/fork.o: In function `__mmdrop': fork.c:(.text+0x14f6): undefined reference to `hmm_mm_destroy' This adds back the second copy of the dummy functions, hopefully this time in the right place. Link: http://lkml.kernel.org/r/20180404110236.804484-1-arnd@arndb.de Fixes: 8900d06a277a ("mm/hmm: fix header file if/else/endif maze") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Jérôme Glisse <jglisse@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/hmm.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 5d26e0a223d9..39988924de3a 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -376,8 +376,18 @@ bool hmm_vma_range_done(struct hmm_range *range);
* See the function description in mm/hmm.c for further documentation.
*/
int hmm_vma_fault(struct hmm_range *range, bool block);
-#endif /* IS_ENABLED(CONFIG_HMM_MIRROR) */
+/* Below are for HMM internal use only! Not to be used by device driver! */
+void hmm_mm_destroy(struct mm_struct *mm);
+
+static inline void hmm_mm_init(struct mm_struct *mm)
+{
+ mm->hmm = NULL;
+}
+#else /* IS_ENABLED(CONFIG_HMM_MIRROR) */
+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_MIRROR) */
#if IS_ENABLED(CONFIG_DEVICE_PRIVATE) || IS_ENABLED(CONFIG_DEVICE_PUBLIC)
struct hmm_devmem;
@@ -550,16 +560,9 @@ 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 */
-
-/* Below are for HMM internal use only! Not to be used by device driver! */
-void hmm_mm_destroy(struct mm_struct *mm);
-
-static inline void hmm_mm_init(struct mm_struct *mm)
-{
- mm->hmm = NULL;
-}
#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 */