Re: [PATCH bpf] bpf, sockmap: Account for receive queue in FIONREAD without a verdict program

["Kumar Kartikeya Dwivedi" <memxor@gmail.com>]

On Tue Jul 7, 2026 at 6:15 PM CEST, Mattia Meleleo via B4 Relay wrote:
> From: Mattia Meleleo <mattia.meleleo@coralogix.com>
>
> tcp_bpf_ioctl() answers SIOCINQ from psock->msg_tot_len, which only
> counts bytes in ingress_msg. Without a stream/skb verdict program
> nothing is diverted there: data stays in sk_receive_queue, so FIONREAD
> returns 0 even though read() returns data.
>
> Add tcp_inq() to the reported value when the psock has no verdict
> program. The two queues are disjoint, so bytes redirected into
> ingress_msg from other sockets stay correctly accounted through
> msg_tot_len.
>
> Add a selftest covering FIONREAD without a verdict program.
>
> Fixes: 929e30f93125 ("bpf, sockmap: Fix FIONREAD for sockmap")
> Signed-off-by: Mattia Meleleo <mattia.meleleo@coralogix.com>
> ---

Please respin with the fix and selftest as separate patches, but still targeting
bpf tree. You can add the Reviewed-by: tags to both.

pw-bot: cr

> [...]