Re: [OFFLIST RFC 3/4] bpf: Support bpf_kptr_xchg into local kptr

On Fri, Jul 19, 2024 at 05:21:18PM +0000, Amery Hung wrote:

From: Dave Marchevsky <redacted>

Signed-off-by: Dave Marchevsky <redacted>

Amery,
please add your SOB after Dave's when you're sending patches like this.

Remove OFFLIST in subject... and resend cc-ing bpf@vger.

Add proper commit log.

-	if (meta->func_id == BPF_FUNC_kptr_xchg && type_is_alloc(type)) {
+	if (meta->func_id == BPF_FUNC_kptr_xchg && type_is_alloc(type) && regno > 1) {

I don't understand the point of regno > 1. Pls explain/add comment.

Patches 1 and 2 make sense.