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Message-Id: <1472727777-4695-1-git-send-email-baoyou.xie@linaro.org>
Date: Thu, 1 Sep 2016 19:02:57 +0800
From: Baoyou Xie <baoyou.xie@...aro.org>
To: mst@...hat.com
Cc: virtualization@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org, arnd@...db.de, baoyou.xie@...aro.org,
xie.baoyou@....com.cn
Subject: [PATCH] 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: Baoyou Xie <baoyou.xie@...aro.org>
---
drivers/virtio/virtio_ring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 114a0c8..13b58db 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -167,7 +167,7 @@ static bool vring_use_dma_api(struct virtio_device *vdev)
* making all of the arch DMA ops work on the vring device itself
* is a mess. For now, we use the parent device for DMA ops.
*/
-struct device *vring_dma_dev(const struct vring_virtqueue *vq)
+static struct device *vring_dma_dev(const struct vring_virtqueue *vq)
{
return vq->vq.vdev->dev.parent;
}
--
2.7.4
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