netdev - [net-next 08/10] ixgbe: fix ixgbe_fc_autoneg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 29 Aug 2011 01:41:06 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Don Skidmore <donald.c.skidmore@...el.com>, netdev@...r.kernel.org,
	gospo@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 08/10] ixgbe: fix ixgbe_fc_autoneg_fiber bug

From: Don Skidmore <donald.c.skidmore@...el.com>

A logic error in ixgbe_fc_autoneg_fiber() that treated a masked u32 as a
boolean would make it so we would never fall hit a error check case.  So
now I force the u32 to a boolean value with '!!'.

Signed-off-by: Don Skidmore <donald.c.skidmore@...el.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_common.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index fc1375f..90a04e2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -2121,8 +2121,8 @@ static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw)
 	 */
 
 	linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
-	if (((linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
-	    ((linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
+	if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) ||
+	    (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) {
 		ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED;
 		goto out;
 	}
-- 
1.7.6

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html