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Maciej Żenczykowski
9f7b3a69c8
net-ipv6: do not allow IPV6_TCLASS to muck with tcp's ECN
This is to match ipv4 behaviour, see __ip_sock_set_tos() implementation at ipv4/ip_sockglue.c:579 void __ip_sock_set_tos(struct sock *sk, int val) { if (sk->sk_type == SOCK_STREAM) { val &= ~INET_ECN_MASK; val |= inet_sk(sk)->tos & INET_ECN_MASK; } if (inet_sk(sk)->tos != val) { inet_sk(sk)->tos = val; sk->sk_priority = rt_tos2priority(val); sk_dst_reset(sk); } } Cc: Neal Cardwell <ncardwell@google.com> Signed-off-by: Maciej Żenczykowski <maze@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20211123223154.1117794-1-zenczykowski@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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