There is a new forward declaration for two global cftype arrays, but
that fails to build when CONFIG_CGROUPS is disabled:
In file included from /git/arm-soc/block/bfq-iosched.c:105:0:
block/bfq-iosched.h:820:22: error: array type has incomplete element type 'struct cftype'
extern struct cftype bfq_blkcg_legacy_files[];
extern struct cftype bfq_blkg_files[];
This adds an empty definition for the type to make it build again.
Fixes: ea25da48086d ("block, bfq: split bfq-iosched.c into multiple source files")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
include/linux/cgroup-defs.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 21745946cae1..cb3cc9588622 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -556,6 +556,9 @@ static inline void cgroup_threadgroup_change_end(struct task_struct *tsk)
#else /* CONFIG_CGROUPS */
+struct cftype {
+};
+
#define CGROUP_SUBSYS_COUNT 0
static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
--
2.9.0
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