Re: Misc 2.5 Fixes: arcnet-oops-fix

Dipankar Sarma
2003-06-10T09:50:35Z

Fix arcnet oopses with raw socket

drivers/net/arcnet/arc-rawmode.c | 9 ++++-----
drivers/net/arcnet/arcnet.c | 15 ++++++++-------
drivers/net/arcnet/rfc1051.c | 9 ++++-----
drivers/net/arcnet/rfc1201.c | 9 ++++-----
include/linux/arcdevice.h | 4 ++--
5 files changed, 22 insertions(+), 24 deletions(-)

diff -puN drivers/net/arcnet/arcnet.c~arcnet-oops-fix drivers/net/arcnet/arcnet.c
--- linux-2.5.70-ds/drivers/net/arcnet/arcnet.c~arcnet-oops-fix 2003-06-08 02:09:38.000000000 +0530
+++ linux-2.5.70-ds-dipankar/drivers/net/arcnet/arcnet.c 2003-06-08 02:09:38.000000000 +0530
@@ -57,8 +57,8 @@
/* "do nothing" functions for protocol drivers */
static void null_rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
-static int null_build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr);
+static int null_build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr);
static int null_prepare_tx(struct net_device *dev, struct archdr *pkt,
int length, int bufnum);

@@ -479,7 +479,7 @@ static int arcnet_header(struct sk_buff
arc_bcast_proto->suffix);
proto = arc_bcast_proto;
}
- return proto->build_header(skb, type, _daddr);
+ return proto->build_header(skb, dev, type, _daddr);
}

@@ -495,6 +495,7 @@ static int arcnet_rebuild_header(struct
int status = 0; /* default is failure */
unsigned short type;
uint8_t daddr=0;
+ struct ArcProto *proto;

if (skb->nh.raw - skb->mac.raw != 2) {
BUGMSG(D_NORMAL,
@@ -523,7 +524,8 @@ static int arcnet_rebuild_header(struct
return 0;

/* add the _real_ header this time! */
- arc_proto_map[lp->default_proto[daddr]]->build_header(skb, type, daddr);
+ proto = arc_proto_map[lp->default_proto[daddr]];
+ proto->build_header(skb, dev, type, daddr);

return 1; /* success */
}
@@ -952,10 +954,9 @@ static void null_rx(struct net_device *d
}

-static int null_build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr)
+static int null_build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr)
{
- struct net_device *dev = skb->dev;
struct arcnet_local *lp = (struct arcnet_local *) dev->priv;

BUGMSG(D_PROTO,
diff -puN drivers/net/arcnet/arc-rawmode.c~arcnet-oops-fix drivers/net/arcnet/arc-rawmode.c
--- linux-2.5.70-ds/drivers/net/arcnet/arc-rawmode.c~arcnet-oops-fix 2003-06-08 02:09:38.000000000 +0530
+++ linux-2.5.70-ds-dipankar/drivers/net/arcnet/arc-rawmode.c 2003-06-08 02:09:38.000000000 +0530
@@ -37,8 +37,8 @@

static void rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr);
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr);
static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
int bufnum);

@@ -131,10 +131,9 @@ static void rx(struct net_device *dev, i
* Create the ARCnet hard/soft headers for raw mode.
* There aren't any soft headers in raw mode - not even the protocol id.
*/
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr)
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr)
{
- struct net_device *dev = skb->dev;
int hdr_size = ARC_HDR_SIZE;
struct archdr *pkt = (struct archdr *) skb_push(skb, hdr_size);

diff -puN drivers/net/arcnet/rfc1051.c~arcnet-oops-fix drivers/net/arcnet/rfc1051.c
--- linux-2.5.70-ds/drivers/net/arcnet/rfc1051.c~arcnet-oops-fix 2003-06-08 02:09:38.000000000 +0530
+++ linux-2.5.70-ds-dipankar/drivers/net/arcnet/rfc1051.c 2003-06-08 02:09:38.000000000 +0530
@@ -37,8 +37,8 @@
static unsigned short type_trans(struct sk_buff *skb, struct net_device *dev);
static void rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr);
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr);
static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
int bufnum);

@@ -163,10 +163,9 @@ static void rx(struct net_device *dev, i
/*
* Create the ARCnet hard/soft headers for RFC1051.
*/
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr)
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr)
{
- struct net_device *dev = skb->dev;
struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
int hdr_size = ARC_HDR_SIZE + RFC1051_HDR_SIZE;
struct archdr *pkt = (struct archdr *) skb_push(skb, hdr_size);
diff -puN drivers/net/arcnet/rfc1201.c~arcnet-oops-fix drivers/net/arcnet/rfc1201.c
--- linux-2.5.70-ds/drivers/net/arcnet/rfc1201.c~arcnet-oops-fix 2003-06-08 02:09:38.000000000 +0530
+++ linux-2.5.70-ds-dipankar/drivers/net/arcnet/rfc1201.c 2003-06-08 02:09:38.000000000 +0530
@@ -36,8 +36,8 @@
static unsigned short type_trans(struct sk_buff *skb, struct net_device *dev);
static void rx(struct net_device *dev, int bufnum,
struct archdr *pkthdr, int length);
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr);
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr);
static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
int bufnum);
static int continue_tx(struct net_device *dev, int bufnum);
@@ -370,10 +370,9 @@ static void rx(struct net_device *dev, i

/* Create the ARCnet hard/soft headers for RFC1201. */
-static int build_header(struct sk_buff *skb, unsigned short type,
- uint8_t daddr)
+static int build_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, uint8_t daddr)
{
- struct net_device *dev = skb->dev;
struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
int hdr_size = ARC_HDR_SIZE + RFC1201_HDR_SIZE;
struct archdr *pkt = (struct archdr *) skb_push(skb, hdr_size);
diff -puN include/linux/arcdevice.h~arcnet-oops-fix include/linux/arcdevice.h
--- linux-2.5.70-ds/include/linux/arcdevice.h~arcnet-oops-fix 2003-06-08 02:09:38.000000000 +0530
+++ linux-2.5.70-ds-dipankar/include/linux/arcdevice.h 2003-06-08 02:09:38.000000000 +0530
@@ -190,8 +190,8 @@ struct ArcProto {

void (*rx) (struct net_device * dev, int bufnum,
struct archdr * pkthdr, int length);
- int (*build_header) (struct sk_buff * skb, unsigned short ethproto,
- uint8_t daddr);
+ int (*build_header) (struct sk_buff * skb, struct net_device *dev,
+ unsigned short ethproto, uint8_t daddr);

/* these functions return '1' if the skb can now be freed */
int (*prepare_tx) (struct net_device * dev, struct archdr * pkt, int length,

_