On 3/15/16, 12:52 AM, Jiri Pirko wrote:
> Tue, Mar 15, 2016 at 08:38:51AM CET, ro...@cumulusnetworks.com wrote:
>>
[snip]
>> how does it matter if we have reached an agreement that the struct is 
>> required ?.
>> unlike other messages, a filter_mask is an important and must attribute for
>> stats. If you are worried about us running out of bits in u32, the netlink 
>> attribute you will
>> define for the filter_mask will also be u32 to begin with.
> No, you are missing the point:

I understood what you meant the first time...(to which i did comment if you 
really wanted a u8 for every filter attribute).

>
> enum {
>       IFLA_STATS_UNSPEC,
>       IFLA_STATS_FILTER, /* nest */
>       IFLA_STATS_LINK64,
>       IFLA_STATS_INET6,
>       __IFLA_STATS_MAX,
> };
>
> #define IFLA_STATS_MAX (__IFLA_STATS_MAX - 1)
>
> enum {
>       IFLA_STATS_FILTER_UNSPEC,
>       IFLA_STATS_FILTER_LINK64, /* flag */
>       IFLA_STATS_FILTER_INET6, /* flag */
>       ...
>       IFLA_STATS_FILTER_WHATEVER, /* flag */
>       __IFLA_STATS_FILTER_MAX,
> };
>
> #define IFLA_STATS_FILTERMAX (__IFLA_STATS_FILTER_MAX - 1)

Apart from the usability concern i have described earlier, this just seems an 
overkill ...having to redefine every attribute.


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