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net/core: Convert sk_timer users 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 for all users of sk_timer.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Hendry <andrew.hendry@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: linzhang <xiaolou4617@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: netdev@vger.kernel.org
Cc: linux-hams@vger.kernel.org
Cc: linux-x25@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 2017-10-16 17:29:36 -07:00 committed by David S. Miller
parent 26566eae80
commit 99767f278c
6 changed files with 46 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/core/sock.c
View File

@ -2683,7 +2683,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
sk_init_common(sk); sk_init_common(sk);
sk->sk_send_head = NULL; sk->sk_send_head = NULL;
setup_timer(&sk->sk_timer, NULL, (unsigned long)sk); timer_setup(&sk->sk_timer, NULL, 0);
sk->sk_allocation = GFP_KERNEL; sk->sk_allocation = GFP_KERNEL;
sk->sk_rcvbuf = sysctl_rmem_default; sk->sk_rcvbuf = sysctl_rmem_default;

6
net/netrom/af_netrom.c
View File

@ -241,9 +241,9 @@ void nr_destroy_socket(struct sock *);
/* /*
* Handler for deferred kills. * Handler for deferred kills.
*/ */
static void nr_destroy_timer(unsigned long data) static void nr_destroy_timer(struct timer_list *t)
{ {
struct sock *sk=(struct sock *)data; struct sock *sk = from_timer(sk, t, sk_timer);
bh_lock_sock(sk); bh_lock_sock(sk);
sock_hold(sk); sock_hold(sk);
nr_destroy_socket(sk); nr_destroy_socket(sk);
@ -284,7 +284,7 @@ void nr_destroy_socket(struct sock *sk)
if (sk_has_allocations(sk)) { if (sk_has_allocations(sk)) {
/* Defer: outstanding buffers */ /* Defer: outstanding buffers */
sk->sk_timer.function = nr_destroy_timer; sk->sk_timer.function = (TIMER_FUNC_TYPE)nr_destroy_timer;
sk->sk_timer.expires = jiffies + 2 * HZ; sk->sk_timer.expires = jiffies + 2 * HZ;
add_timer(&sk->sk_timer); add_timer(&sk->sk_timer);
} else } else

47
net/netrom/nr_timer.c
View File

@ -29,23 +29,23 @@
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <net/netrom.h> #include <net/netrom.h>
static void nr_heartbeat_expiry(unsigned long); static void nr_heartbeat_expiry(struct timer_list *);
static void nr_t1timer_expiry(unsigned long); static void nr_t1timer_expiry(struct timer_list *);
static void nr_t2timer_expiry(unsigned long); static void nr_t2timer_expiry(struct timer_list *);
static void nr_t4timer_expiry(unsigned long); static void nr_t4timer_expiry(struct timer_list *);
static void nr_idletimer_expiry(unsigned long); static void nr_idletimer_expiry(struct timer_list *);
void nr_init_timers(struct sock *sk) void nr_init_timers(struct sock *sk)
{ {
struct nr_sock *nr = nr_sk(sk); struct nr_sock *nr = nr_sk(sk);
setup_timer(&nr->t1timer, nr_t1timer_expiry, (unsigned long)sk); timer_setup(&nr->t1timer, nr_t1timer_expiry, 0);
setup_timer(&nr->t2timer, nr_t2timer_expiry, (unsigned long)sk); timer_setup(&nr->t2timer, nr_t2timer_expiry, 0);
setup_timer(&nr->t4timer, nr_t4timer_expiry, (unsigned long)sk); timer_setup(&nr->t4timer, nr_t4timer_expiry, 0);
setup_timer(&nr->idletimer, nr_idletimer_expiry, (unsigned long)sk); timer_setup(&nr->idletimer, nr_idletimer_expiry, 0);
/* initialized by sock_init_data */ /* initialized by sock_init_data */
sk->sk_timer.function = &nr_heartbeat_expiry; sk->sk_timer.function = (TIMER_FUNC_TYPE)nr_heartbeat_expiry;
} }
void nr_start_t1timer(struct sock *sk) void nr_start_t1timer(struct sock *sk)
@ -112,9 +112,9 @@ int nr_t1timer_running(struct sock *sk)
return timer_pending(&nr_sk(sk)->t1timer); return timer_pending(&nr_sk(sk)->t1timer);
} }
static void nr_heartbeat_expiry(unsigned long param) static void nr_heartbeat_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct sock *sk = from_timer(sk, t, sk_timer);
struct nr_sock *nr = nr_sk(sk); struct nr_sock *nr = nr_sk(sk);
bh_lock_sock(sk); bh_lock_sock(sk);
@ -151,10 +151,10 @@ static void nr_heartbeat_expiry(unsigned long param)
bh_unlock_sock(sk); bh_unlock_sock(sk);
} }
static void nr_t2timer_expiry(unsigned long param) static void nr_t2timer_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct nr_sock *nr = from_timer(nr, t, t2timer);
struct nr_sock *nr = nr_sk(sk); struct sock *sk = &nr->sock;
bh_lock_sock(sk); bh_lock_sock(sk);
if (nr->condition & NR_COND_ACK_PENDING) { if (nr->condition & NR_COND_ACK_PENDING) {
@ -164,19 +164,20 @@ static void nr_t2timer_expiry(unsigned long param)
bh_unlock_sock(sk); bh_unlock_sock(sk);
} }
static void nr_t4timer_expiry(unsigned long param) static void nr_t4timer_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct nr_sock *nr = from_timer(nr, t, t4timer);
struct sock *sk = &nr->sock;
bh_lock_sock(sk); bh_lock_sock(sk);
nr_sk(sk)->condition &= ~NR_COND_PEER_RX_BUSY; nr_sk(sk)->condition &= ~NR_COND_PEER_RX_BUSY;
bh_unlock_sock(sk); bh_unlock_sock(sk);
} }
static void nr_idletimer_expiry(unsigned long param) static void nr_idletimer_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct nr_sock *nr = from_timer(nr, t, idletimer);
struct nr_sock *nr = nr_sk(sk); struct sock *sk = &nr->sock;
bh_lock_sock(sk); bh_lock_sock(sk);
@ -201,10 +202,10 @@ static void nr_idletimer_expiry(unsigned long param)
bh_unlock_sock(sk); bh_unlock_sock(sk);
} }
static void nr_t1timer_expiry(unsigned long param) static void nr_t1timer_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct nr_sock *nr = from_timer(nr, t, t1timer);
struct nr_sock *nr = nr_sk(sk); struct sock *sk = &nr->sock;
bh_lock_sock(sk); bh_lock_sock(sk);
switch (nr->state) { switch (nr->state) {

8
net/rose/rose_timer.c
View File

@ -28,7 +28,7 @@
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <net/rose.h> #include <net/rose.h>
static void rose_heartbeat_expiry(unsigned long); static void rose_heartbeat_expiry(struct timer_list *t);
static void rose_timer_expiry(struct timer_list *); static void rose_timer_expiry(struct timer_list *);
static void rose_idletimer_expiry(struct timer_list *); static void rose_idletimer_expiry(struct timer_list *);
@ -36,7 +36,7 @@ void rose_start_heartbeat(struct sock *sk)
{ {
del_timer(&sk->sk_timer); del_timer(&sk->sk_timer);
sk->sk_timer.function = &rose_heartbeat_expiry; sk->sk_timer.function = (TIMER_FUNC_TYPE)rose_heartbeat_expiry;
sk->sk_timer.expires = jiffies + 5 * HZ; sk->sk_timer.expires = jiffies + 5 * HZ;
add_timer(&sk->sk_timer); add_timer(&sk->sk_timer);
@ -119,9 +119,9 @@ void rose_stop_idletimer(struct sock *sk)
del_timer(&rose_sk(sk)->idletimer); del_timer(&rose_sk(sk)->idletimer);
} }
static void rose_heartbeat_expiry(unsigned long param) static void rose_heartbeat_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct sock *sk = from_timer(sk, t, sk_timer);
struct rose_sock *rose = rose_sk(sk); struct rose_sock *rose = rose_sk(sk);
bh_lock_sock(sk); bh_lock_sock(sk);

8
net/x25/af_x25.c
View File

@ -374,9 +374,11 @@ static void __x25_destroy_socket(struct sock *);
/* /*
* handler for deferred kills. * handler for deferred kills.
*/ */
static void x25_destroy_timer(unsigned long data) static void x25_destroy_timer(struct timer_list *t)
{ {
x25_destroy_socket_from_timer((struct sock *)data); struct sock *sk = from_timer(sk, t, sk_timer);
x25_destroy_socket_from_timer(sk);
} }
/* /*
@ -413,7 +415,7 @@ static void __x25_destroy_socket(struct sock *sk)
if (sk_has_allocations(sk)) { if (sk_has_allocations(sk)) {
/* Defer: outstanding buffers */ /* Defer: outstanding buffers */
sk->sk_timer.expires = jiffies + 10 * HZ; sk->sk_timer.expires = jiffies + 10 * HZ;
sk->sk_timer.function = x25_destroy_timer; sk->sk_timer.function = (TIMER_FUNC_TYPE)x25_destroy_timer;
add_timer(&sk->sk_timer); add_timer(&sk->sk_timer);
} else { } else {
/* drop last reference so sock_put will free */ /* drop last reference so sock_put will free */

17
net/x25/x25_timer.c
View File

@ -26,17 +26,17 @@
#include <net/tcp_states.h> #include <net/tcp_states.h>
#include <net/x25.h> #include <net/x25.h>
static void x25_heartbeat_expiry(unsigned long); static void x25_heartbeat_expiry(struct timer_list *t);
static void x25_timer_expiry(unsigned long); static void x25_timer_expiry(struct timer_list *t);
void x25_init_timers(struct sock *sk) void x25_init_timers(struct sock *sk)
{ {
struct x25_sock *x25 = x25_sk(sk); struct x25_sock *x25 = x25_sk(sk);
setup_timer(&x25->timer, x25_timer_expiry, (unsigned long)sk); timer_setup(&x25->timer, x25_timer_expiry, 0);
/* initialized by sock_init_data */ /* initialized by sock_init_data */
sk->sk_timer.function = &x25_heartbeat_expiry; sk->sk_timer.function = (TIMER_FUNC_TYPE)x25_heartbeat_expiry;
} }
void x25_start_heartbeat(struct sock *sk) void x25_start_heartbeat(struct sock *sk)
@ -92,9 +92,9 @@ unsigned long x25_display_timer(struct sock *sk)
return x25->timer.expires - jiffies; return x25->timer.expires - jiffies;
} }
static void x25_heartbeat_expiry(unsigned long param) static void x25_heartbeat_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct sock *sk = from_timer(sk, t, sk_timer);
bh_lock_sock(sk); bh_lock_sock(sk);
if (sock_owned_by_user(sk)) /* can currently only occur in state 3 */ if (sock_owned_by_user(sk)) /* can currently only occur in state 3 */
@ -159,9 +159,10 @@ static inline void x25_do_timer_expiry(struct sock * sk)
} }
} }
static void x25_timer_expiry(unsigned long param) static void x25_timer_expiry(struct timer_list *t)
{ {
struct sock *sk = (struct sock *)param; struct x25_sock *x25 = from_timer(x25, t, timer);
struct sock *sk = &x25->sk;
bh_lock_sock(sk); bh_lock_sock(sk);
if (sock_owned_by_user(sk)) { /* can currently only occur in state 3 */ if (sock_owned_by_user(sk)) { /* can currently only occur in state 3 */