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net: LLC: 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.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Hans Liljestrand <ishkamiel@gmail.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: "Reshetova, Elena" <elena.reshetova@intel.com>
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 01:45:48 -07:00 committed by David S. Miller
parent 8dbd05ff5c
commit fc8bcaa051
3 changed files with 25 additions and 22 deletions
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8
include/net/llc_c_ac.h
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@ -171,10 +171,10 @@ int llc_conn_ac_rst_sendack_flag(struct sock *sk, struct sk_buff *skb);
int llc_conn_ac_send_i_rsp_as_ack(struct sock *sk, struct sk_buff *skb);
int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb);
void llc_conn_busy_tmr_cb(unsigned long timeout_data);
void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data);
void llc_conn_ack_tmr_cb(unsigned long timeout_data);
void llc_conn_rej_tmr_cb(unsigned long timeout_data);
void llc_conn_busy_tmr_cb(struct timer_list *t);
void llc_conn_pf_cycle_tmr_cb(struct timer_list *t);
void llc_conn_ack_tmr_cb(struct timer_list *t);
void llc_conn_rej_tmr_cb(struct timer_list *t);
void llc_conn_set_p_flag(struct sock *sk, u8 value);
#endif /* LLC_C_AC_H */

27
net/llc/llc_c_ac.c
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@ -1318,9 +1318,8 @@ static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb)
return 0;
}
static void llc_conn_tmr_common_cb(unsigned long timeout_data, u8 type)
static void llc_conn_tmr_common_cb(struct sock *sk, u8 type)
{
struct sock *sk = (struct sock *)timeout_data;
struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
bh_lock_sock(sk);
@ -1334,24 +1333,32 @@ static void llc_conn_tmr_common_cb(unsigned long timeout_data, u8 type)
bh_unlock_sock(sk);
}
void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data)
void llc_conn_pf_cycle_tmr_cb(struct timer_list *t)
{
llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_P_TMR);
struct llc_sock *llc = from_timer(llc, t, pf_cycle_timer.timer);
llc_conn_tmr_common_cb(&llc->sk, LLC_CONN_EV_TYPE_P_TMR);
}
void llc_conn_busy_tmr_cb(unsigned long timeout_data)
void llc_conn_busy_tmr_cb(struct timer_list *t)
{
llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_BUSY_TMR);
struct llc_sock *llc = from_timer(llc, t, busy_state_timer.timer);
llc_conn_tmr_common_cb(&llc->sk, LLC_CONN_EV_TYPE_BUSY_TMR);
}
void llc_conn_ack_tmr_cb(unsigned long timeout_data)
void llc_conn_ack_tmr_cb(struct timer_list *t)
{
llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_ACK_TMR);
struct llc_sock *llc = from_timer(llc, t, ack_timer.timer);
llc_conn_tmr_common_cb(&llc->sk, LLC_CONN_EV_TYPE_ACK_TMR);
}
void llc_conn_rej_tmr_cb(unsigned long timeout_data)
void llc_conn_rej_tmr_cb(struct timer_list *t)
{
llc_conn_tmr_common_cb(timeout_data, LLC_CONN_EV_TYPE_REJ_TMR);
struct llc_sock *llc = from_timer(llc, t, rej_sent_timer.timer);
llc_conn_tmr_common_cb(&llc->sk, LLC_CONN_EV_TYPE_REJ_TMR);
}
int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb)

12
net/llc/llc_conn.c
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@ -902,20 +902,16 @@ static void llc_sk_init(struct sock *sk)
llc->inc_cntr = llc->dec_cntr = 2;
llc->dec_step = llc->connect_step = 1;
setup_timer(&llc->ack_timer.timer, llc_conn_ack_tmr_cb,
(unsigned long)sk);
timer_setup(&llc->ack_timer.timer, llc_conn_ack_tmr_cb, 0);
llc->ack_timer.expire = sysctl_llc2_ack_timeout;
setup_timer(&llc->pf_cycle_timer.timer, llc_conn_pf_cycle_tmr_cb,
(unsigned long)sk);
timer_setup(&llc->pf_cycle_timer.timer, llc_conn_pf_cycle_tmr_cb, 0);
llc->pf_cycle_timer.expire = sysctl_llc2_p_timeout;
setup_timer(&llc->rej_sent_timer.timer, llc_conn_rej_tmr_cb,
(unsigned long)sk);
timer_setup(&llc->rej_sent_timer.timer, llc_conn_rej_tmr_cb, 0);
llc->rej_sent_timer.expire = sysctl_llc2_rej_timeout;
setup_timer(&llc->busy_state_timer.timer, llc_conn_busy_tmr_cb,
(unsigned long)sk);
timer_setup(&llc->busy_state_timer.timer, llc_conn_busy_tmr_cb, 0);
llc->busy_state_timer.expire = sysctl_llc2_busy_timeout;
llc->n2 = 2; /* max retransmit */