mm-hmm-struct-hmm-is-only-use-by-hmm-mirror-functionality-v2-fix
Compiler is complaining for allnoconfig
kernel/fork.c: In function 'mm_init':
kernel/fork.c:814:2: error: implicit declaration of function 'hmm_mm_init' [-Werror=implicit-function-declaration]
hmm_mm_init(mm);
^
kernel/fork.c: In function '__mmdrop':
kernel/fork.c:893:2: error: implicit declaration of function 'hmm_mm_destroy' [-Werror=implicit-function-declaration]
hmm_mm_destroy(mm);
Make sure that hmm_mm_init/hmm_mm_destroy empty stups are defined when
CONFIG_HMM is disabled.
Signed-off-by: Michal Hocko <mhocko@suse.com>
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 9583d9a..aeb94e6 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -508,11 +508,10 @@
{
mm->hmm = NULL;
}
-#else /* IS_ENABLED(CONFIG_HMM_MIRROR) */
+#endif
+
+#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_MIRROR) */
-
-
#endif /* IS_ENABLED(CONFIG_HMM) */
#endif /* LINUX_HMM_H */
