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

[Xu Kuohai]

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.

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