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SubjectRe: [PATCH 3/4] infiniband: hns: add Hisilicon RoCE support(driver code)
Wed, Mar 09, 2016 at 12:18:06PM CET, oulijun@huawei.com wrote:
>Hi Jiri Pirko, thanks for reviewing
>On 2016/3/4 17:16, Jiri Pirko wrote:
>> Fri, Mar 04, 2016 at 09:41:16AM CET, xavier.huwei@huawei.com wrote:
>>
>> <snip>
>>
>>> +int hns_roce_buf_alloc(
>>> + struct hns_roce_dev *hr_dev,
>>> + int size, int max_direct,
>>> + struct hns_roce_buf *buf)
>>
>> <snip>
>>
>>> +
>>> + pages =
>>> + kmalloc(sizeof(*pages) * buf->nbufs,
>>> + GFP_KERNEL);
>>
>> <snip>
>>
>>> +
>>> + buf->direct.buf = vmap(
>>> + pages, buf->nbufs, VM_MAP,
>>> + PAGE_KERNEL);
>>
>> <snip>
>>
>>> + if (
>>> + event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID &&
>>> + event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR &&
>>> + event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) {
>>> + dev_err(&hr_dev->pdev->dev,
>>> + "hns_roce_ib: Unexpected event type 0x%x on CQ %06x\n",
>>> + event_type, hr_cq->cqn);
>>> + return;
>>> + }
>>
>> Although checkpatch does not complain, I find this semi-random adding of
>> newlines quite odd.
>>
> Really, the question you mentioned exit in many location in currently patch. I done it
>in order to make it complain checkpatch and linux norms. Now, I have checked and adjust it
>properly combined to checkpatch
> I will send a new patch in future. if not modified in some locations, it have to violate
>checkpatch once modified and is unable to adjust it better. About these, have you best strategy?

I'm not sure what violation you are talking about. I'm just simply
suggesting to change:
buf->direct.buf = vmap(
pages, buf->nbufs, VM_MAP,
PAGE_KERNEL);
to:
buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP,
PAGE_KERNEL);


and to change:
pages =
kmalloc(sizeof(*pages) * buf->nbufs,
GFP_KERNEL);
to:
pages = kmalloc(sizeof(*pages) * buf->nbufs,
GFP_KERNEL);


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