Subject: Re: [PATCH iproute2-next 1/4] libnetlink: Add rta_getattr_uint()

From: Petr Machata <[email-masked]>
Date: Mon, 11 Mar 2024 11:53:50 +0100

Stephen Hemminger <[email-masked]> writes:

> On Fri, 8 Mar 2024 19:43:34 -0800
> Jakub Kicinski <[email-masked]> wrote:
>
>> On Fri, 8 Mar 2024 14:58:59 -0800 Stephen Hemminger wrote:
>> > > +static inline __u64 rta_getattr_uint(const struct rtattr *rta)
>> > > +{
>> > > +	if (RTA_PAYLOAD(rta) == sizeof(__u32))
>> > > +		return rta_getattr_u32(rta);
>> > > +	return rta_getattr_u64(rta);    
>> > 
>> > Don't understand the use case here.
>> > The kernel always sends the same payload size for the same attribute.  
>> 
>> Please see commit 374d345d9b5e13380c in the kernel.
>
> Ok, but maybe go further and handle u16 and u8

I intended this as a getter of the corresponding kernel attribute type,
which only ever sends 4- and 8-byte payloads, but sure, I can add that.