linux-kernel - [PATCH 2.6.31] ehea: Fix napi list corruption on ifconfig down

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Message-Id: <200908041620.16542.hannes.hering@linux.vnet.ibm.com>
Date:	Tue, 4 Aug 2009 16:20:15 +0200
From:	Hannes Hering <hannes.hering@...ux.vnet.ibm.com>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	netdev@...r.kernel.org, ossrosch@...ux.vnet.ibm.com,
	ossthema@...ibm.com, raisch@...ibm.com, themann@...ibm.com,
	osstklei@...ibm.com
Subject: [PATCH 2.6.31] ehea: Fix napi list corruption on ifconfig down

This patch fixes the napi list handling when an ehea interface is shut down to
avoid corruption of the napi list.

Signed-off-by: Hannes Hering <hering2@...ibm.com>

---

diff -Nurp -X dontdiff linux-2.6.31-rc5/drivers/net/ehea/ehea.h patched_kernel/drivers/net/ehea/ehea.h
--- linux-2.6.31-rc5/drivers/net/ehea/ehea.h	2009-08-01 02:40:45.000000000 +0200
+++ patched_kernel/drivers/net/ehea/ehea.h	2009-08-03 17:59:26.696079433 +0200
@@ -40,7 +40,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME	"ehea"
-#define DRV_VERSION	"EHEA_0101"
+#define DRV_VERSION	"EHEA_0102"
 
 /* eHEA capability flags */
 #define DLPAR_PORT_ADD_REM 1
diff -Nurp -X dontdiff linux-2.6.31-rc5/drivers/net/ehea/ehea_main.c patched_kernel/drivers/net/ehea/ehea_main.c
--- linux-2.6.31-rc5/drivers/net/ehea/ehea_main.c	2009-08-01 02:40:45.000000000 +0200
+++ patched_kernel/drivers/net/ehea/ehea_main.c	2009-08-03 17:59:26.696079433 +0200
@@ -1545,6 +1545,9 @@ static int ehea_clean_portres(struct ehe
 {
 	int ret, i;
 
+	if (pr->qp)
+		netif_napi_del(&pr->napi);
+
 	ret = ehea_destroy_qp(pr->qp);
 
 	if (!ret) {
--
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