[PATCH] net: af_packet: Convert timers to use timer_setup()
From: Kees Cook <hidden>
Date: 2017-10-24 08:46:34
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: Willem de Bruijn <willemb@google.com> Cc: Mike Maloney <redacted> Cc: Jarno Rajahalme <redacted> Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <redacted> --- net/packet/af_packet.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4f4fa323171d..9603f6ff17a4 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c@@ -201,11 +201,8 @@ static void prb_retire_current_block(struct tpacket_kbdq_core *, static int prb_queue_frozen(struct tpacket_kbdq_core *); static void prb_open_block(struct tpacket_kbdq_core *, struct tpacket_block_desc *); -static void prb_retire_rx_blk_timer_expired(unsigned long); +static void prb_retire_rx_blk_timer_expired(struct timer_list *); static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *); -static void prb_init_blk_timer(struct packet_sock *, - struct tpacket_kbdq_core *, - void (*func) (unsigned long)); static void prb_fill_rxhash(struct tpacket_kbdq_core *, struct tpacket3_hdr *); static void prb_clear_rxhash(struct tpacket_kbdq_core *, struct tpacket3_hdr *);
@@ -540,20 +537,14 @@ static void prb_shutdown_retire_blk_timer(struct packet_sock *po, prb_del_retire_blk_timer(pkc); } -static void prb_init_blk_timer(struct packet_sock *po, - struct tpacket_kbdq_core *pkc, - void (*func) (unsigned long)) -{ - setup_timer(&pkc->retire_blk_timer, func, (long)po); - pkc->retire_blk_timer.expires = jiffies; -} - static void prb_setup_retire_blk_timer(struct packet_sock *po) { struct tpacket_kbdq_core *pkc; pkc = GET_PBDQC_FROM_RB(&po->rx_ring); - prb_init_blk_timer(po, pkc, prb_retire_rx_blk_timer_expired); + timer_setup(&pkc->retire_blk_timer, prb_retire_rx_blk_timer_expired, + 0); + pkc->retire_blk_timer.expires = jiffies; } static int prb_calc_retire_blk_tmo(struct packet_sock *po,
@@ -671,9 +662,10 @@ static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *pkc) * prb_calc_retire_blk_tmo() calculates the tmo. * */ -static void prb_retire_rx_blk_timer_expired(unsigned long data) +static void prb_retire_rx_blk_timer_expired(struct timer_list *t) { - struct packet_sock *po = (struct packet_sock *)data; + struct packet_sock *po = + from_timer(po, t, rx_ring.prb_bdqc.retire_blk_timer); struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(&po->rx_ring); unsigned int frozen; struct tpacket_block_desc *pbd;
--
2.7.4
--
Kees Cook
Pixel Security