Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / ia64 / hp / sim / simserial.c

diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 786e707..0e5c6ae 100644 (file)
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -26,10 +26,12 @@
 #include <linux/fcntl.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/capability.h>
 #include <linux/console.h>
 #include <linux/module.h>
 #include <linux/serial.h>
 #include <linux/serialP.h>
+#include <linux/sysrq.h>
 
 #include <asm/irq.h>
 #include <asm/hw_irq.h>
@@ -44,11 +46,6 @@
 #define KEYBOARD_INTR  3       /* must match with simulator! */
 
 #define NR_PORTS       1       /* only one port for now */
-#define SERIAL_INLINE  1
-
-#ifdef SERIAL_INLINE
-#define _INLINE_ inline
-#endif
 
 #define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? SA_SHIRQ : SA_INTERRUPT)
 
@@ -106,7 +103,6 @@ static struct async_struct *IRQ_ports[NR_IRQS];
 static struct console *console;
 
 static unsigned char *tmp_buf;
-static DECLARE_MUTEX(tmp_buf_sem);
 
 extern struct console *console_drivers; /* from kernel/printk.c */
 
@@ -129,7 +125,7 @@ static void rs_stop(struct tty_struct *tty)
 
 static void rs_start(struct tty_struct *tty)
 {
-#if SIMSERIAL_DEBUG
+#ifdef SIMSERIAL_DEBUG
        printk("rs_start: tty->stopped=%d tty->hw_stopped=%d tty->flow_stopped=%d\n",
                tty->stopped, tty->hw_stopped, tty->flow_stopped);
 #endif
@@ -149,26 +145,25 @@ static  void receive_chars(struct tty_struct *tty, struct pt_regs *regs)
                                seen_esc = 2;
                                continue;
                        } else if ( seen_esc == 2 ) {
-                               if ( ch == 'P' ) show_state();          /* F1 key */
-#ifdef CONFIG_KDB
-                               if ( ch == 'S' )
-                                       kdb(KDB_REASON_KEYBOARD, 0, (kdb_eframe_t) regs);
+                               if ( ch == 'P' ) /* F1 */
+                                       show_state();
+#ifdef CONFIG_MAGIC_SYSRQ
+                               if ( ch == 'S' ) { /* F4 */
+                                       do
+                                               ch = ia64_ssc(0, 0, 0, 0,
+                                                             SSC_GETCHAR);
+                                       while (!ch);
+                                       handle_sysrq(ch, regs, NULL);
+                               }
 #endif
-
                                seen_esc = 0;
                                continue;
                        }
                }
                seen_esc = 0;
-               if (tty->flip.count >= TTY_FLIPBUF_SIZE) break;
 
-               *tty->flip.char_buf_ptr = ch;
-
-               *tty->flip.flag_buf_ptr = 0;
-
-               tty->flip.flag_buf_ptr++;
-               tty->flip.char_buf_ptr++;
-               tty->flip.count++;
+               if (tty_insert_flip_char(tty, ch, TTY_NORMAL) == 0)
+                       break;
        }
        tty_flip_buffer_push(tty);
 }
@@ -237,7 +232,7 @@ static void rs_put_char(struct tty_struct *tty, unsigned char ch)
        local_irq_restore(flags);
 }
 
-static _INLINE_ void transmit_chars(struct async_struct *info, int *intr_done)
+static void transmit_chars(struct async_struct *info, int *intr_done)
 {
        int count;
        unsigned long flags;
@@ -636,10 +631,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
        info->event = 0;
        info->tty = 0;
        if (info->blocked_open) {
-               if (info->close_delay) {
-                       current->state = TASK_INTERRUPTIBLE;
-                       schedule_timeout(info->close_delay);
-               }
+               if (info->close_delay)
+                       schedule_timeout_interruptible(info->close_delay);
                wake_up_interruptible(&info->open_wait);
        }
        info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
@@ -976,7 +969,7 @@ static struct tty_operations hp_ops = {
 static int __init
 simrs_init (void)
 {
-       int                     i;
+       int                     i, rc;
        struct serial_state     *state;
 
        if (!ia64_platform_is("hpsim"))
@@ -1011,7 +1004,10 @@ simrs_init (void)
                if (state->type == PORT_UNKNOWN) continue;
 
                if (!state->irq) {
-                       state->irq = assign_irq_vector(AUTO_ASSIGN);
+                       if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0)
+                               panic("%s: out of interrupt vectors!\n",
+                                     __FUNCTION__);
+                       state->irq = rc;
                        ia64_ssc_connect_irq(KEYBOARD_INTR, state->irq);
                }