Re: Re: [PATCH 1/2] bpf: support access variable length array of integer type

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在 2023/4/18 08:08, Alexei Starovoitov 写道:
On Mon, Apr 17, 2023 at 04:07:48PM +0800, Feng zhou wrote:
From: Feng Zhou <zhoufeng.zf@xxxxxxxxxxxxx>

After this commit:
bpf: Support variable length array in tracing programs (9c5f8a1008a1)
Trace programs can access variable length array, but for structure
type. This patch adds support for integer type.

Example:
Hook load_balance
struct sched_domain {
	...
	unsigned long span[];
}

The access: sd->span[0].
The use case makes sense.
Please add it as a selftest. Either combine it with patch 2 or another patch 3.
and then resubmit.
Make sure to use [PATCH bpf-next] subject, so BPF CI knows how to test it.

Will do, thanks.




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