virtio: mark vring_dma_dev() static
We get 1 warning when building kernel with W=1: drivers/virtio/virtio_ring.c:170:16: warning: no previous prototype for 'vring_dma_dev' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. so this patch marks this function with 'static'. Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Showing
想要评论请 注册 或 登录