[PATCH bpf-next v2 1/2] bpf, arm64: Support up to 12 function arguments

[Alexis Lothoré]

On Tue May 27, 2025 at 11:09 AM CEST, Xu Kuohai wrote:
> On 5/27/2025 4:45 PM, Alexis Lothoré wrote:
>
> [...]
>
>>>> +		/* We can not know for sure about exact alignment needs for
>>>> +		 * struct passed on stack, so deny those
>>>> +		 */
>>>> +		if (m->arg_flags[i] & BTF_FMODEL_STRUCT_ARG)
>>>> +			return -EOPNOTSUPP;
>>> leave the error code as is, namely, return -ENOTSUPP?
>> Actually this change follows a complaint from checkpatch:
>> 
>> "WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP"
>
> Seems we can just ignore this warning, as ENOTSUPP is already used
> throughout bpf, and the actual value -524 is well recognized.

Ok, then I'll switch it back to ENOTSUPP


-- 
Alexis Lothoré, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com