netdev - [PATCH net-next 4/4] alx: add module parameter to enable msi-x support

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Date:   Fri,  9 Sep 2016 12:19:55 +0200
From:   Tobias Regnery <tobias.regnery@...il.com>
To:     netdev@...r.kernel.org, jcliburn@...il.com, chris.snook@...il.com
Cc:     davem@...emloft.net, feng.tang@...el.com, jarod@...hat.com,
        Tobias Regnery <tobias.regnery@...il.com>
Subject: [PATCH net-next 4/4] alx: add module parameter to enable msi-x support

msi-x support is default disabled in the alx driver. In order to test msi-x
interrupts for regressions add a module parameter to the driver.

Signed-off-by: Tobias Regnery <tobias.regnery@...il.com>
---
 drivers/net/ethernet/atheros/alx/main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index a4f74d4a976c..9887cee434dd 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -51,6 +51,9 @@
 
 const char alx_drv_name[] = "alx";
 
+static bool msix = false;
+module_param(msix, bool, 0);
+MODULE_PARM_DESC(msix, "Enable msi-x interrupt support");
 
 static void alx_free_txbuf(struct alx_priv *alx, int entry)
 {
@@ -1018,7 +1021,7 @@ static int __alx_open(struct alx_priv *alx, bool resume)
 {
 	int err;
 
-	alx_init_intr(alx, false);
+	alx_init_intr(alx, msix);
 
 	if (!resume)
 		netif_carrier_off(alx->dev);
-- 
2.7.4