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Message-ID: <20151228184435.GH16437@tuxbot>
Date: Mon, 28 Dec 2015 10:44:35 -0800
From: Bjorn Andersson <bjorn@...o.se>
To: Stefan Hajnoczi <stefanha@...hat.com>
Cc: virtualization@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>
Subject: Re: [PATCH] virtio: make find_vqs() checkpatch.pl-friendly
On Thu 17 Dec 00:53 PST 2015, Stefan Hajnoczi wrote:
> 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@...hat.com>
Acked-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
Regards,
Bjorn
> ---
> 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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