virtio: make find_vqs() checkpatch.pl-friendly

checkpatch.pl wants arrays of strings declared as follows:

  static const char * const names[] = { "vq-1", "vq-2", "vq-3" };

Currently the find_vqs() function takes a const char *names[] argument
so passing checkpatch.pl's const char * const names[] results in a
compiler error due to losing the second const.

This patch adjusts the find_vqs() prototype and updates all virtio
transports.  This makes it possible for virtio_balloon.c, virtio_input.c,
virtgpu_kms.c, and virtio_rpmsg_bus.c to use the checkpatch.pl-friendly
type.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>

6 files changed, 7 insertions, 7 deletions

diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 7d3e5d0..0c3691f 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -388,7 +388,7 @@ static int init_vqs(struct virtio_balloon *vb)
 {
 	struct virtqueue *vqs[3];
 	vq_callback_t *callbacks[] = { balloon_ack, balloon_ack, stats_request };
-	const char *names[] = { "inflate", "deflate", "stats" };
+	static const char * const names[] = { "inflate", "deflate", "stats" };
 	int err, nvqs;
 
 	/*
diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c
index c96944b..350a2a5 100644
--- a/drivers/virtio/virtio_input.c
+++ b/drivers/virtio/virtio_input.c
@@ -170,7 +170,7 @@ static int virtinput_init_vqs(struct virtio_input *vi)
 	struct virtqueue *vqs[2];
 	vq_callback_t *cbs[] = { virtinput_recv_events,
 				 virtinput_recv_status };
-	static const char *names[] = { "events", "status" };
+	static const char * const names[] = { "events", "status" };
 	int err;
 
 	err = vi->vdev->config->find_vqs(vi->vdev, 2, vqs, cbs, names);
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index f499d9d..745c6ee 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -482,7 +482,7 @@ error_available:
 static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 		       struct virtqueue *vqs[],
 		       vq_callback_t *callbacks[],
-		       const char *names[])
+		       const char * const names[])
 {
 	struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
 	unsigned int irq = platform_get_irq(vm_dev->pdev, 0);
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 78f804a..36205c2 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -296,7 +296,7 @@ void vp_del_vqs(struct virtio_device *vdev)
 static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 			      struct virtqueue *vqs[],
 			      vq_callback_t *callbacks[],
-			      const char *names[],
+			      const char * const names[],
 			      bool use_msix,
 			      bool per_vq_vectors)
 {
@@ -376,7 +376,7 @@ error_find:
 int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 		struct virtqueue *vqs[],
 		vq_callback_t *callbacks[],
-		const char *names[])
+		const char * const names[])
 {
 	int err;
 
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index b976d96..2cc2522 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -139,7 +139,7 @@ void vp_del_vqs(struct virtio_device *vdev);
 int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 		       struct virtqueue *vqs[],
 		       vq_callback_t *callbacks[],
-		       const char *names[]);
+		       const char * const names[]);
 const char *vp_bus_name(struct virtio_device *vdev);
 
 /* Setup the affinity for a virtqueue:
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 8e5cf19..c0c11fa 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -418,7 +418,7 @@ err_new_queue:
 static int vp_modern_find_vqs(struct virtio_device *vdev, unsigned nvqs,
 			      struct virtqueue *vqs[],
 			      vq_callback_t *callbacks[],
-			      const char *names[])
+			      const char * const names[])
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	struct virtqueue *vq;