Re: [PATCH] virtio-mmio: Use to_virtio_mmio_device() to simply code

From: Tang Bin
Date: Wed Feb 17 2021 - 20:36:12 EST


Dear Jason:

      Sorry for the late reply this email.

在 2021/2/10 16:09, Jason Wang 写道:

On 2021/2/10 上午11:04, Tang Bin wrote:
The file virtio_mmio.c has defined the function to_virtio_mmio_device,
so use it instead of container_of() to simply code. And remove
superfluous blank lines in this file.

Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
---
  drivers/virtio/virtio_mmio.c | 16 +---------------
  1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 627ac0487..449d0f209 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -69,14 +69,10 @@
  #include <uapi/linux/virtio_mmio.h>
  #include <linux/virtio_ring.h>
  -
-


It's better not mix the patch with style changes.

Other looks good.

Thanks

Whether should I send patch V2?

Thanks



  /* The alignment to use between consumer and producer parts of vring.
   * Currently hardcoded to the page size. */
  #define VIRTIO_MMIO_VRING_ALIGN        PAGE_SIZE
  -
-
  #define to_virtio_mmio_device(_plat_dev) \
      container_of(_plat_dev, struct virtio_mmio_device, vdev)
  @@ -100,8 +96,6 @@ struct virtio_mmio_vq_info {
      struct list_head node;
  };
  -
-
  /* Configuration interface */
    static u64 vm_get_features(struct virtio_device *vdev)
@@ -264,8 +258,6 @@ static void vm_reset(struct virtio_device *vdev)
      writel(0, vm_dev->base + VIRTIO_MMIO_STATUS);
  }
  -
-
  /* Transport interface */
    /* the notify function used when creating a virt queue */
@@ -307,8 +299,6 @@ static irqreturn_t vm_interrupt(int irq, void *opaque)
      return ret;
  }
  -
-
  static void vm_del_vq(struct virtqueue *vq)
  {
      struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev);
@@ -512,13 +502,11 @@ static const struct virtio_config_ops virtio_mmio_config_ops = {
      .bus_name    = vm_bus_name,
  };
  -
  static void virtio_mmio_release_dev(struct device *_d)
  {
      struct virtio_device *vdev =
              container_of(_d, struct virtio_device, dev);
-    struct virtio_mmio_device *vm_dev =
-            container_of(vdev, struct virtio_mmio_device, vdev);
+    struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
      struct platform_device *pdev = vm_dev->pdev;
        devm_kfree(&pdev->dev, vm_dev);
@@ -608,8 +596,6 @@ static int virtio_mmio_remove(struct platform_device *pdev)
      return 0;
  }
  -
-
  /* Devices list parameter */
    #if defined(CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES)