We get 4 warnings when building kernel with W=1:
drivers/vhost/vhost.c:52:23: warning: no previous prototype for 'vhost_umem_interval_tree_insert' [-Wmissing-prototypes]
drivers/vhost/vhost.c:52:23: warning: no previous prototype for 'vhost_umem_interval_tree_remove' [-Wmissing-prototypes]
drivers/vhost/vhost.c:52:23: warning: no previous prototype for 'vhost_umem_interval_tree_iter_first' [-Wmissing-prototypes]
drivers/vhost/vhost.c:52:23: warning: no previous prototype for 'vhost_umem_interval_tree_iter_next' [-Wmissing-prototypes]
In fact, these functions are defined in the
macro 'INTERVAL_TREE_DEFINE' in include/linux/interval_tree_generic.h
and don't need a declaration, but can be made static.
so this patch marks these functions with 'static' by modifying
the macro.
Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx>
---
drivers/vhost/vhost.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c6f2d89..99c6d0d 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -48,8 +48,8 @@ enum {
#define vhost_avail_event(vq) ((__virtio16 __user *)&vq->used->ring[vq->num])
INTERVAL_TREE_DEFINE(struct vhost_umem_node,
- rb, __u64, __subtree_last,
- START, LAST, , vhost_umem_interval_tree);
+ rb, __u64, __subtree_last, START, LAST,
+ static, vhost_umem_interval_tree);
#ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY
static void vhost_disable_cross_endian(struct vhost_virtqueue *vq)
--
2.7.4
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