| Message ID | 1468906851-8424-1-git-send-email-yoshihiro.shimoda.uh@renesas.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
On Tue, Jul 19, 2016 at 1:40 AM, Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> wrote: > This patch fixes an issue that a syscall (e.g. sendto syscall) cannot > work correctly. Since the sendto syscall doesn't have msg_control buffer, > the sock_tx_timestamp() in packet_snd() cannot work correctly because > the socks.tsflags is set to 0. > So, this patch sets the socks.tsflags to sk->sk_tsflags as default. > > Fixes: c14ac9451c34 ("sock: enable timestamping using control messages") > Cc: <stable@vger.kernel.org> > Reported-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> > Reported-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> > --- > Changes from v2: > - Fix build error... > > Changes from v1: > - Set socks.tsflags to sk->sk_tsflags as default instead of a condition. > - Fix other socks.tsflags values in the af_packet.c. > - Revise the commit log. > > About v1 (as RFC): > - http://thread.gmane.org/gmane.linux.kernel.renesas-soc/5646 > > net/packet/af_packet.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c > index 9f0983f..53e87ce 100644 > --- a/net/packet/af_packet.c > +++ b/net/packet/af_packet.c > @@ -1927,7 +1927,7 @@ retry: > goto out_unlock; > } > > - sockc.tsflags = 0; > + sockc.tsflags = sk->sk_tsflags; > if (msg->msg_controllen) { > err = sock_cmsg_send(sk, msg, &sockc); > if (unlikely(err)) { > @@ -2678,7 +2678,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) > dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex); > } > > - sockc.tsflags = 0; > + sockc.tsflags = po->sk.sk_tsflags; > if (msg->msg_controllen) { > err = sock_cmsg_send(&po->sk, msg, &sockc); > if (unlikely(err)) > @@ -2881,7 +2881,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) > if (unlikely(!(dev->flags & IFF_UP))) > goto out_unlock; > > - sockc.tsflags = 0; > + sockc.tsflags = sk->sk_tsflags; > sockc.mark = sk->sk_mark; > if (msg->msg_controllen) { > err = sock_cmsg_send(sk, msg, &sockc); > -- > 1.9.1 > Thanks for the fix.
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Date: Tue, 19 Jul 2016 14:40:51 +0900 > This patch fixes an issue that a syscall (e.g. sendto syscall) cannot > work correctly. Since the sendto syscall doesn't have msg_control buffer, > the sock_tx_timestamp() in packet_snd() cannot work correctly because > the socks.tsflags is set to 0. > So, this patch sets the socks.tsflags to sk->sk_tsflags as default. > > Fixes: c14ac9451c34 ("sock: enable timestamping using control messages") > Cc: <stable@vger.kernel.org> > Reported-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> > Reported-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Applied.
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 9f0983f..53e87ce 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1927,7 +1927,7 @@ retry: goto out_unlock; } - sockc.tsflags = 0; + sockc.tsflags = sk->sk_tsflags; if (msg->msg_controllen) { err = sock_cmsg_send(sk, msg, &sockc); if (unlikely(err)) { @@ -2678,7 +2678,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex); } - sockc.tsflags = 0; + sockc.tsflags = po->sk.sk_tsflags; if (msg->msg_controllen) { err = sock_cmsg_send(&po->sk, msg, &sockc); if (unlikely(err)) @@ -2881,7 +2881,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (unlikely(!(dev->flags & IFF_UP))) goto out_unlock; - sockc.tsflags = 0; + sockc.tsflags = sk->sk_tsflags; sockc.mark = sk->sk_mark; if (msg->msg_controllen) { err = sock_cmsg_send(sk, msg, &sockc);
This patch fixes an issue that a syscall (e.g. sendto syscall) cannot work correctly. Since the sendto syscall doesn't have msg_control buffer, the sock_tx_timestamp() in packet_snd() cannot work correctly because the socks.tsflags is set to 0. So, this patch sets the socks.tsflags to sk->sk_tsflags as default. Fixes: c14ac9451c34 ("sock: enable timestamping using control messages") Cc: <stable@vger.kernel.org> Reported-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Reported-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> --- Changes from v2: - Fix build error... Changes from v1: - Set socks.tsflags to sk->sk_tsflags as default instead of a condition. - Fix other socks.tsflags values in the af_packet.c. - Revise the commit log. About v1 (as RFC): - http://thread.gmane.org/gmane.linux.kernel.renesas-soc/5646 net/packet/af_packet.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)