[dpdk-dev] [PATCH 02/11] net/sfc/base: improve API to get supported filter matches

[Andrew Rybchenko]

On 03/07/2017 04:25 PM, Ferruh Yigit wrote:
> On 3/2/2017 4:03 PM, Andrew Rybchenko wrote:
>> From: Mark Spender <mspender at solarflare.com>
>>
>> The previous API had various problems, including the length of the
>> caller provided buffer not being specified, no means being available
>> to discover how big the buffer needs to be, and a lack of clarity of
>> what the resulting list contains.
>>
>> To improve it:
>> - add the buffer length as a parameter
>> - if the provided buffer is too short, fail with ENOSPC and return
>>    the required length
>> - ensure that the list contents are valid and add comments describing it
>>
>> It is safe to change this API as, unsuprisingly, it has no users.
>>
>> Signed-off-by: Mark Spender <mspender at solarflare.com>
>> Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
> <...>
>
>>   
>> -	*length = index;
>> -	memcpy(list, rx_matches, *length);
>> +	memcpy(buffer, rx_matches, list_length * sizeof (rx_matches[0]));
> Checkpatch warning:
>
> WARNING:SPACING: space prohibited between function name and open
> parenthesis '('
> #326: FILE: drivers/net/sfc/base/efx_filter.c:1410:
> +       memcpy(buffer, rx_matches, list_length * sizeof (rx_matches[0]))


Ferruh,

it is a base driver patch and base driver has a bit different coding 
conventions
(due to usage on other operating systems). I hope it is not a problem.

Thanks,
Andrew.