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Date:   Thu, 18 Feb 2021 09:34:08 +0800
From:   Tang Bin <tangbin@...s.chinamobile.com>
To:     Jason Wang <jasowang@...hat.com>, mst@...hat.com
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] virtio-mmio: Use to_virtio_mmio_device() to simply code

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@...s.chinamobile.com>
>> ---
>>   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)
>


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