#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/jiffies.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/string.h>
#define PPP_VERSION "2.4.2"
-#define OBUFSIZE 256
+#define OBUFSIZE 4096
/* Structure for storing local state. */
struct asyncppp {
return 0;
}
-/*
- * This can now be called from hard interrupt level as well
- * as soft interrupt level or mainline.
- */
+/* May sleep, don't call from interrupt level or with interrupts disabled */
static void
ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
char *cflags, int count)
if (!skb_queue_empty(&ap->rqueue))
tasklet_schedule(&ap->tsk);
ap_put(ap);
+ tty_unthrottle(tty);
}
static void
* Start of a new packet - insert the leading FLAG
* character if necessary.
*/
- if (islcp || flag_time == 0
- || time_after_eq(jiffies, ap->last_xmit + flag_time))
+ if (islcp || flag_time == 0 ||
+ time_after_eq(jiffies, ap->last_xmit + flag_time))
*buf++ = PPP_FLAG;
ap->last_xmit = jiffies;
fcs = PPP_INITFCS;
*/
clear_bit(XMIT_BUSY, &ap->xmit_flags);
/* any more work to do? if not, exit the loop */
- if (!(test_bit(XMIT_WAKEUP, &ap->xmit_flags)
- || (!tty_stuffed && ap->tpkt)))
+ if (!(test_bit(XMIT_WAKEUP, &ap->xmit_flags) ||
+ (!tty_stuffed && ap->tpkt)))
break;
/* more work to do, see if we can do it now */
if (test_and_set_bit(XMIT_BUSY, &ap->xmit_flags))
for (i = 0; i < count; ++i) {
c = buf[i];
- if (c == PPP_ESCAPE || c == PPP_FLAG
- || (c < 0x20 && (ap->raccm & (1 << c)) != 0))
+ if (c == PPP_ESCAPE || c == PPP_FLAG ||
+ (c < 0x20 && (ap->raccm & (1 << c)) != 0))
break;
}
return i;