From: Pat Gefre <pfg@sgi.com>
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>
---
drivers/serial/sn_console.c | 1 +
1 files changed, 1 insertion(+)
diff -puN drivers/serial/sn_console.c~26-altix-shut-off-xmit-intr-if-done-xmitting drivers/serial/sn_console.c
--- 25/drivers/serial/sn_console.c~26-altix-shut-off-xmit-intr-if-done-xmitting 2005-05-11 20:02:38.000000000 -0700
+++ 25-akpm/drivers/serial/sn_console.c 2005-05-11 20:02:38.000000000 -0700
@@ -572,6 +572,7 @@ static void sn_transmit_chars(struct sn_
if (uart_circ_empty(xmit) || uart_tx_stopped(&port->sc_port)) {
/* Nothing to do. */
+ ia64_sn_console_intr_disable(SAL_CONSOLE_INTR_XMIT);
return;
}
_