tree b9934a110ade73aa4e64b989ce9ab9c654eb5c8f
parent e8ff0139a8296ba3c86e83bdc303ab878ddd235c
author rch <rch@google.com> 1729196371 -0700
committer Copybara-Service <copybara-worker@google.com> 1729196429 -0700

Remove an unnecessary setsockopt of IPV6_FLOWINFO_SEND.
Enabling IPV6_FLOWINFO_SEND causes the kernel to send a
randomly generated flow label unless a flow label is explicitly
provided in a CMSG. Since we already wired up support to set
the label in CMSG, this call is redundant and it has the
unintended side effect of causing random flow labels to be
sent, even for sockets where no flow labels are intended.
For QuicUdpSocket users that do not intend to send flow labels,
this would be a behavior change.

Protected by quic_reloadable_flag_quic_support_flow_label.

PiperOrigin-RevId: 687022006