[PATCH] virtio: make find_vqs() checkpatch.pl-friendly

From: Stefan Hajnoczi
Date: Thu Dec 17 2015 - 03:53:54 EST


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@xxxxxxxxxx>
---
Compile-tested drivers/virtio/ but not the more exotic source files in this
patch.

drivers/gpu/drm/virtio/virtgpu_kms.c | 2 +-
drivers/misc/mic/card/mic_virtio.c | 2 +-
drivers/remoteproc/remoteproc_virtio.c | 2 +-
drivers/rpmsg/virtio_rpmsg_bus.c | 2 +-
drivers/s390/virtio/kvm_virtio.c | 2 +-
drivers/s390/virtio/virtio_ccw.c | 2 +-
drivers/virtio/virtio_balloon.c | 2 +-
drivers/virtio/virtio_input.c | 2 +-
drivers/virtio/virtio_mmio.c | 2 +-
drivers/virtio/virtio_pci_common.c | 4 ++--
drivers/virtio/virtio_pci_common.h | 2 +-
drivers/virtio/virtio_pci_modern.c | 2 +-
include/linux/virtio_config.h | 2 +-
13 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 06496a1..4150873 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -130,7 +130,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
static vq_callback_t *callbacks[] = {
virtio_gpu_ctrl_ack, virtio_gpu_cursor_ack
};
- static const char *names[] = { "control", "cursor" };
+ static const char * const names[] = { "control", "cursor" };

struct virtio_gpu_device *vgdev;
/* this will expand later */
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
index e486a0c..f6ed57d 100644
--- a/drivers/misc/mic/card/mic_virtio.c
+++ b/drivers/misc/mic/card/mic_virtio.c
@@ -311,7 +311,7 @@ unmap:
static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
- const char *names[])
+ const char * const names[])
{
struct mic_vdev *mvdev = to_micvdev(vdev);
struct mic_device_ctrl __iomem *dc = mvdev->dc;
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index e1a1023..e44872f 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -147,7 +147,7 @@ static void rproc_virtio_del_vqs(struct virtio_device *vdev)
static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
- const char *names[])
+ const char * const names[])
{
struct rproc *rproc = vdev_to_rproc(vdev);
int i, ret;
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 73354ee..1fcd27c 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -945,7 +945,7 @@ static void rpmsg_ns_cb(struct rpmsg_channel *rpdev, void *data, int len,
static int rpmsg_probe(struct virtio_device *vdev)
{
vq_callback_t *vq_cbs[] = { rpmsg_recv_done, rpmsg_xmit_done };
- const char *names[] = { "input", "output" };
+ static const char * const names[] = { "input", "output" };
struct virtqueue *vqs[2];
struct virtproc_info *vrp;
void *bufs_va;
diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c
index 53fb975..1d060fd 100644
--- a/drivers/s390/virtio/kvm_virtio.c
+++ b/drivers/s390/virtio/kvm_virtio.c
@@ -255,7 +255,7 @@ static void kvm_del_vqs(struct virtio_device *vdev)
static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
- const char *names[])
+ const char * const names[])
{
struct kvm_device *kdev = to_kvmdev(vdev);
int i;
diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
index b2a1a81..5a433ae 100644
--- a/drivers/s390/virtio/virtio_ccw.c
+++ b/drivers/s390/virtio/virtio_ccw.c
@@ -635,7 +635,7 @@ out:
static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
- const char *names[])
+ const char * const names[])
{
struct virtio_ccw_device *vcdev = to_vc_device(vdev);
unsigned long *indicatorp = NULL;
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 7efc329..d0f0817c 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;
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index e5ce8ab..6e6cb0c 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -70,7 +70,7 @@ struct virtio_config_ops {
int (*find_vqs)(struct virtio_device *, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
- const char *names[]);
+ const char * const names[]);
void (*del_vqs)(struct virtio_device *);
u64 (*get_features)(struct virtio_device *vdev);
int (*finalize_features)(struct virtio_device *vdev);
--
2.5.0

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