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cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
177 lines
4.2 KiB
C
177 lines
4.2 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Copyright (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
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* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
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* Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
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* Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
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*/
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/kernel.h>
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#include <linux/timer.h>
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#include <linux/string.h>
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#include <linux/sockios.h>
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#include <linux/net.h>
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#include <net/ax25.h>
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#include <linux/inet.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <net/sock.h>
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#include <net/tcp_states.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#include <linux/fcntl.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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void ax25_std_heartbeat_expiry(ax25_cb *ax25)
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{
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struct sock *sk=ax25->sk;
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if (sk)
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bh_lock_sock(sk);
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switch (ax25->state) {
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case AX25_STATE_0:
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/* Magic here: If we listen() and a new link dies before it
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is accepted() it isn't 'dead' so doesn't get removed. */
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if (!sk || sock_flag(sk, SOCK_DESTROY) ||
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(sk->sk_state == TCP_LISTEN &&
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sock_flag(sk, SOCK_DEAD))) {
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if (sk) {
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sock_hold(sk);
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ax25_destroy_socket(ax25);
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bh_unlock_sock(sk);
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sock_put(sk);
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} else
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ax25_destroy_socket(ax25);
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return;
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}
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break;
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case AX25_STATE_3:
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case AX25_STATE_4:
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/*
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* Check the state of the receive buffer.
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*/
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if (sk != NULL) {
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if (atomic_read(&sk->sk_rmem_alloc) <
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(sk->sk_rcvbuf / 2) &&
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(ax25->condition & AX25_COND_OWN_RX_BUSY)) {
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ax25->condition &= ~AX25_COND_OWN_RX_BUSY;
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ax25->condition &= ~AX25_COND_ACK_PENDING;
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ax25_send_control(ax25, AX25_RR, AX25_POLLOFF, AX25_RESPONSE);
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break;
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}
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}
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}
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if (sk)
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bh_unlock_sock(sk);
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ax25_start_heartbeat(ax25);
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}
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void ax25_std_t2timer_expiry(ax25_cb *ax25)
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{
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if (ax25->condition & AX25_COND_ACK_PENDING) {
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ax25->condition &= ~AX25_COND_ACK_PENDING;
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ax25_std_timeout_response(ax25);
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}
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}
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void ax25_std_t3timer_expiry(ax25_cb *ax25)
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{
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ax25->n2count = 0;
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ax25_std_transmit_enquiry(ax25);
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ax25->state = AX25_STATE_4;
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}
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void ax25_std_idletimer_expiry(ax25_cb *ax25)
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{
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ax25_clear_queues(ax25);
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ax25->n2count = 0;
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ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
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ax25->state = AX25_STATE_2;
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ax25_calculate_t1(ax25);
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ax25_start_t1timer(ax25);
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ax25_stop_t2timer(ax25);
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ax25_stop_t3timer(ax25);
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if (ax25->sk != NULL) {
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bh_lock_sock(ax25->sk);
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ax25->sk->sk_state = TCP_CLOSE;
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ax25->sk->sk_err = 0;
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ax25->sk->sk_shutdown |= SEND_SHUTDOWN;
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if (!sock_flag(ax25->sk, SOCK_DEAD)) {
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ax25->sk->sk_state_change(ax25->sk);
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sock_set_flag(ax25->sk, SOCK_DEAD);
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}
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bh_unlock_sock(ax25->sk);
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}
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}
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void ax25_std_t1timer_expiry(ax25_cb *ax25)
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{
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switch (ax25->state) {
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case AX25_STATE_1:
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if (ax25->n2count == ax25->n2) {
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if (ax25->modulus == AX25_MODULUS) {
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ax25_disconnect(ax25, ETIMEDOUT);
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return;
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} else {
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ax25->modulus = AX25_MODULUS;
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ax25->window = ax25->ax25_dev->values[AX25_VALUES_WINDOW];
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ax25->n2count = 0;
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ax25_send_control(ax25, AX25_SABM, AX25_POLLON, AX25_COMMAND);
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}
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} else {
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ax25->n2count++;
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if (ax25->modulus == AX25_MODULUS)
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ax25_send_control(ax25, AX25_SABM, AX25_POLLON, AX25_COMMAND);
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else
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ax25_send_control(ax25, AX25_SABME, AX25_POLLON, AX25_COMMAND);
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}
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break;
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case AX25_STATE_2:
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if (ax25->n2count == ax25->n2) {
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ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
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ax25_disconnect(ax25, ETIMEDOUT);
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return;
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} else {
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ax25->n2count++;
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ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
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}
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break;
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case AX25_STATE_3:
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ax25->n2count = 1;
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ax25_std_transmit_enquiry(ax25);
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ax25->state = AX25_STATE_4;
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break;
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case AX25_STATE_4:
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if (ax25->n2count == ax25->n2) {
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ax25_send_control(ax25, AX25_DM, AX25_POLLON, AX25_RESPONSE);
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ax25_disconnect(ax25, ETIMEDOUT);
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return;
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} else {
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ax25->n2count++;
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ax25_std_transmit_enquiry(ax25);
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}
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break;
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}
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ax25_calculate_t1(ax25);
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ax25_start_t1timer(ax25);
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}
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