netdev - [PATCH] e1000e: Fix bug for e1000e interrupt default mode select.

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Date:	Fri,  2 Dec 2011 01:11:46 -0600
From:	Kumar Gala <galak@...nel.crashing.org>
To:	jeffrey.t.kirsher@...el.com
Cc:	jesse.brandeburg@...el.com, e1000-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org, Prabhakar <prabhakar@...escale.com>
Subject: [PATCH] e1000e: Fix bug for e1000e interrupt default mode select.

From: Prabhakar <prabhakar@...escale.com>

If the kernel config does not have MSI enabled (CONFIG_PCI_MSI) the driver
should not default to MSI interrupt mode but legacy interrupt mode.

Signed-off-by: Jin Qing <b24347@...escale.com>
Signed-off-by: Prabhakar <prabhakar@...escale.com>
Signed-off-by: Kumar Gala <galak@...nel.crashing.org>
---
 drivers/net/ethernet/intel/e1000e/param.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/param.c b/drivers/net/ethernet/intel/e1000e/param.c
index 20e93b0..18c35c6 100644
--- a/drivers/net/ethernet/intel/e1000e/param.c
+++ b/drivers/net/ethernet/intel/e1000e/param.c
@@ -388,8 +388,13 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter)
 		static struct e1000_option opt = {
 			.type = range_option,
 			.name = "Interrupt Mode",
+#ifdef CONFIG_PCI_MSI
 			.err  = "defaulting to 2 (MSI-X)",
 			.def  = E1000E_INT_MODE_MSIX,
+#else
+			.err  = "defaulting to 0 (Legacy)",
+			.def  = E1000E_INT_MODE_LEGACY,
+#endif
 			.arg  = { .r = { .min = MIN_INTMODE,
 					 .max = MAX_INTMODE } }
 		};
-- 
1.7.3.4

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