On Fri, Apr 2, 2021 at 10:12 PM Cong Wang [off-list ref] wrote:

On Wed, Mar 31, 2021 at 11:01 PM John Fastabend
[off-list ref] wrote:

quoted

This 'else if' is always true if above is false right? Would be
impler and clearer IMO as,

               if (used <= 0) {
                        if (!copied)
                                copied = used;
                        break;
               }
               copied += used;

I don't see anyway for used to be great than  skb->len.

Yes, slightly better. Please feel free to submit a patch by yourself,
like always your patches are welcome.

Please submit a follow up patch as John requested
or I'm reverting your set.