On 2015/12/7 17:05, Joe Perches wrote:
> On Mon, 2015-12-07 at 16:58 +0800, Yankejian (Hackim Yim) wrote:
>> On 2015/12/7 11:32, Joe Perches wrote:
>>> On Sun, 2015-12-06 at 22:29 -0500, David Miller wrote:
>>>>> From: yankejian <yankej...@huawei.com>
>>>>> Date: Sat, 5 Dec 2015 15:32:29 +0800
>>>>>
>>>>>>> +#if (PAGE_SIZE < 8192)
>>>>>>> + if (hnae_buf_size(ring) == HNS_BUFFER_SIZE_2048) {
>>>>>>> + truesize = hnae_buf_size(ring);
>>>>>>> + } else {
>>>>>>> + truesize = ALIGN(size, L1_CACHE_BYTES);
>>>>>>> + last_offset = hnae_page_size(ring) - hnae_buf_size(ring);
>>>>>>> + }
>>>>>>> +
>>>>>>> +#else
>>>>>>> + truesize = ALIGN(size, L1_CACHE_BYTES);
>>>>>>> + last_offset = hnae_page_size(ring) - hnae_buf_size(ring);
>>>>>>> +#endif
>>>>> This is not indented properly, and it looks terrible.
>>> And it makes one curious as to why last_offset isn't set
>>> in the first block.
>> Hi Joe,
> Hello.
>
>> if hnae_buf_size que equal to HNS_BUFFER_SIZE, last_offset is useless in the
>> routines of this function.
>> so it is ignored in the first block. thanks for your suggestion.
> More to the point, last_offset is initialized to 0.
>
> It'd be clearer not to initialize it at all and
thanks, that is a good idea.
> set it to 0 in the first block and not overwrite
> the initialization in each subsequent block.
because it is useless, i think we'd better ignored it.
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