[PATCH] Altix: shut off xmit intr if done xmitting
authorPat Gefre <pfg@sgi.com>
Thu, 23 Jun 2005 07:09:54 +0000 (00:09 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Thu, 23 Jun 2005 16:45:27 +0000 (09:45 -0700)
Small mod to shut off the xmit interrupt if we have nothing to transmit.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/serial/sn_console.c

index fee6418e84c42abd04b7293e0f47e4caaf307cbe..840815fde49b7e92f099e1e979413691b9a6975c 100644 (file)
@@ -572,6 +572,7 @@ static void sn_transmit_chars(struct sn_cons_port *port, int raw)
 
        if (uart_circ_empty(xmit) || uart_tx_stopped(&port->sc_port)) {
                /* Nothing to do. */
+               ia64_sn_console_intr_disable(SAL_CONSOLE_INTR_XMIT);
                return;
        }