linux-kernel - [ 45/68] sky2: Receive Overflows not counted

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]

Message-Id: <20130402221335.181363789@linuxfoundation.org>
Date:	Tue,  2 Apr 2013 15:13:34 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Mirko Lindner <mlindner@...vell.com>,
	Stephen Hemminger <stephen@...workplumber.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: [ 45/68] sky2: Receive Overflows not counted

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Mirko Lindner <mlindner@...vell.com>

[ Upstream commit 9cfe8b156c21cf340b3a10ecb3022fbbc1c39185 ]

The sky2 driver doesn't count the Receive Overflows because the MAC
interrupt for this event is not set in the MAC's interrupt mask.
The MAC's interrupt mask is set only for Transmit FIFO Underruns.

Fix: The correct setting should be (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR)
Otherwise the Receive Overflow event will not generate any interrupt.
The  Receive Overflow interrupt is handled correctly

Signed-off-by: Mirko Lindner <mlindner@...vell.com>
Acked-by: Stephen Hemminger <stephen@...workplumber.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/marvell/sky2.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/marvell/sky2.h
+++ b/drivers/net/ethernet/marvell/sky2.h
@@ -2069,7 +2069,7 @@ enum {
 	GM_IS_RX_FF_OR	= 1<<1,	/* Receive FIFO Overrun */
 	GM_IS_RX_COMPL	= 1<<0,	/* Frame Reception Complete */
 
-#define GMAC_DEF_MSK     GM_IS_TX_FF_UR
+#define GMAC_DEF_MSK     (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR)
 };
 
 /*	GMAC_LINK_CTRL	16 bit	GMAC Link Control Reg (YUKON only) */


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/