Hi Arjun,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Arjun-Roy/Perf-optimizations-for-TCP-Recv-Zerocopy/20201113-030506
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nex
From: Arjun Roy
When TCP receive zerocopy does not successfully map the entire
requested space, it outputs a 'hint' that the caller should recvmsg().
Augment zerocopy to accept a user buffer that it tries to copy this
hint into - if it is possible to copy the entire hint, it will do so.
This eli