diff options
| author | Willem de Bruijn <willemb@google.com> | 2025-02-14 17:27:01 -0500 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-02-18 18:27:19 -0800 |
| commit | 9329b58395e51bba9c847419cc4ba176df3dd2b7 (patch) | |
| tree | 56c4494fdefca33e1f627224b1adc13d47297a52 /include | |
| parent | 94788792f37902f1f4d417f6f9663831cf7e91fc (diff) | |
ipv4: remove get_rttos
Initialize the ip cookie tos field when initializing the cookie, in
ipcm_init_sk.
The existing code inverts the standard pattern for initializing cookie
fields. Default is to initialize the field from the sk, then possibly
overwrite that when parsing cmsgs (the unlikely case).
This field inverts that, setting the field to an illegal value and
after cmsg parsing checking whether the value is still illegal and
thus should be overridden.
Be careful to always apply mask INET_DSCP_MASK, as before.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250214222720.3205500-5-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 3c4ef5ddad83..ce5e59957dd5 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -92,7 +92,9 @@ static inline void ipcm_init(struct ipcm_cookie *ipcm) static inline void ipcm_init_sk(struct ipcm_cookie *ipcm, const struct inet_sock *inet) { - ipcm_init(ipcm); + *ipcm = (struct ipcm_cookie) { + .tos = READ_ONCE(inet->tos), + }; sockcm_init(&ipcm->sockc, &inet->sk); @@ -256,13 +258,6 @@ static inline u8 ip_sendmsg_scope(const struct inet_sock *inet, return RT_SCOPE_UNIVERSE; } -static inline __u8 get_rttos(struct ipcm_cookie* ipc, struct inet_sock *inet) -{ - u8 dsfield = ipc->tos != -1 ? ipc->tos : READ_ONCE(inet->tos); - - return dsfield & INET_DSCP_MASK; -} - /* datagram.c */ int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); |