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net: dccp: Convert timers to use timer_setup()

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In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. Adds a pointer back to the sock.

Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: dccp@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kees Cook
2017-10-24 01:46:09 -07:00
committed by David S. Miller
parent 7aa1402e2e
commit 839a609414
5 changed files with 20 additions and 15 deletions
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12
net/dccp/timer.c
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@@ -234,10 +234,13 @@ static void dccp_write_xmitlet(unsigned long data)
bh_unlock_sock(sk);
}
static void dccp_write_xmit_timer(unsigned long data)
static void dccp_write_xmit_timer(struct timer_list *t)
{
dccp_write_xmitlet(data);
sock_put((struct sock *)data);
struct dccp_sock *dp = from_timer(dp, t, dccps_xmit_timer);
struct sock *sk = &dp->dccps_inet_connection.icsk_inet.sk;
dccp_write_xmitlet((unsigned long)sk);
sock_put(sk);
}
void dccp_init_xmit_timers(struct sock *sk)
@@ -245,8 +248,7 @@ void dccp_init_xmit_timers(struct sock *sk)
struct dccp_sock *dp = dccp_sk(sk);
tasklet_init(&dp->dccps_xmitlet, dccp_write_xmitlet, (unsigned long)sk);
setup_timer(&dp->dccps_xmit_timer, dccp_write_xmit_timer,
(unsigned long)sk);
timer_setup(&dp->dccps_xmit_timer, dccp_write_xmit_timer, 0);
inet_csk_init_xmit_timers(sk, &dccp_write_timer, &dccp_delack_timer,
&dccp_keepalive_timer);
}