From: Pat Gefre <pfg@sgi.com>
Date: Thu, 23 Jun 2005 07:09:54 +0000 (-0700)
Subject: [PATCH] Altix: shut off xmit intr if done xmitting
X-Git-Tag: v2.6.13-rc1~68^2~421
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=328007b70c8e99c62eef5bc310d8a21d0e937342;p=linux-2.6

[PATCH] Altix: shut off xmit intr if done xmitting

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>
---

diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c
index fee6418e84..840815fde4 100644
--- a/drivers/serial/sn_console.c
+++ b/drivers/serial/sn_console.c
@@ -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;
 	}