Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  [ISDN]: i4l: Fix DLE handling for i4l-audio
  [ISDN] i4l: 'NO CARRIER' message lost after ldisc flush
  [CONNECTOR]: Return proper error code in cn_call_callback()
  [INET]: Fix netdev renaming and inet address labels
  [CASSINI]: Bump driver version and release date.
  [CASSINI]: Fix two obvious NAPI bugs.
  [CASSINI]: Set skb->truesize properly on receive packets.
  [CASSINI]: Program parent Intel31154 bridge when necessary.
  [CASSINI]: Revert 'dont touch page_count'.
  [CASSINI]: Fix endianness bug.
  [XFRM]: Do not define km_migrate() if !CONFIG_XFRM_MIGRATE
  [X25]: Add missing x25_neigh_put

8 files changed, 127 insertions, 51 deletions

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 6883fcb79ad..bf9716b7551 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -145,6 +145,8 @@ static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), v
 				if (queue_work(dev->cbdev->cn_queue,
 							&__cbq->work))
 					err = 0;
+				else
+					err = -EINVAL;
 			} else {
 				struct cn_callback_data *d;
 				
diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index d6952959d72..9cef6fcf587 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -914,6 +914,9 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 			dflag = 0;
 			count_pull = count_put = 0;
 			while ((count_pull < skb->len) && (len > 0)) {
+				/* push every character but the last to the tty buffer directly */
+				if ( count_put )
+					tty_insert_flip_char(tty, last, TTY_NORMAL);
 				len--;
 				if (dev->drv[di]->DLEflag & DLEmask) {
 					last = DLE;
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 4e5f87c1e71..9cb6e5021ad 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -85,6 +85,8 @@ isdn_tty_try_read(modem_info * info, struct sk_buff *skb)
 								tty_insert_flip_char(tty, DLE, 0);
 							tty_insert_flip_char(tty, *dp++, 0);
 						}
+						if (*dp == DLE)
+							tty_insert_flip_char(tty, DLE, 0);
 						last = *dp;
 					} else {
 #endif
@@ -2645,7 +2647,12 @@ isdn_tty_modem_result(int code, modem_info * info)
 		if ((info->flags & ISDN_ASYNC_CLOSING) || (!info->tty)) {
 			return;
 		}
+#ifdef CONFIG_ISDN_AUDIO
+		if ( !info->vonline )
+			tty_ldisc_flush(info->tty);
+#else
 		tty_ldisc_flush(info->tty);
+#endif
 		if ((info->flags & ISDN_ASYNC_CHECK_CD) &&
 		    (!((info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) &&
 		       (info->flags & ISDN_ASYNC_CALLOUT_NOHUP)))) {
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 7df31b5561c..d66915d82b2 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -142,8 +142,8 @@
 
 #define DRV_MODULE_NAME		"cassini"
 #define PFX DRV_MODULE_NAME	": "
-#define DRV_MODULE_VERSION	"1.4"
-#define DRV_MODULE_RELDATE	"1 July 2004"
+#define DRV_MODULE_VERSION	"1.5"
+#define DRV_MODULE_RELDATE	"4 Jan 2008"
 
 #define CAS_DEF_MSG_ENABLE	  \
 	(NETIF_MSG_DRV		| \
@@ -336,30 +336,6 @@ static inline void cas_mask_intr(struct cas *cp)
 		cas_disable_irq(cp, i);
 }
 
-static inline void cas_buffer_init(cas_page_t *cp)
-{
-	struct page *page = cp->buffer;
-	atomic_set((atomic_t *)&page->lru.next, 1);
-}
-
-static inline int cas_buffer_count(cas_page_t *cp)
-{
-	struct page *page = cp->buffer;
-	return atomic_read((atomic_t *)&page->lru.next);
-}
-
-static inline void cas_buffer_inc(cas_page_t *cp)
-{
-	struct page *page = cp->buffer;
-	atomic_inc((atomic_t *)&page->lru.next);
-}
-
-static inline void cas_buffer_dec(cas_page_t *cp)
-{
-	struct page *page = cp->buffer;
-	atomic_dec((atomic_t *)&page->lru.next);
-}
-
 static void cas_enable_irq(struct cas *cp, const int ring)
 {
 	if (ring == 0) { /* all but TX_DONE */
@@ -497,7 +473,6 @@ static int cas_page_free(struct cas *cp, cas_page_t *page)
 {
 	pci_unmap_page(cp->pdev, page->dma_addr, cp->page_size,
 		       PCI_DMA_FROMDEVICE);
-	cas_buffer_dec(page);
 	__free_pages(page->buffer, cp->page_order);
 	kfree(page);
 	return 0;
@@ -527,7 +502,6 @@ static cas_page_t *cas_page_alloc(struct cas *cp, const gfp_t flags)
 	page->buffer = alloc_pages(flags, cp->page_order);
 	if (!page->buffer)
 		goto page_err;
-	cas_buffer_init(page);
 	page->dma_addr = pci_map_page(cp->pdev, page->buffer, 0,
 				      cp->page_size, PCI_DMA_FROMDEVICE);
 	return page;
@@ -606,7 +580,7 @@ static void cas_spare_recover(struct cas *cp, const gfp_t flags)
 	list_for_each_safe(elem, tmp, &list) {
 		cas_page_t *page = list_entry(elem, cas_page_t, list);
 
-		if (cas_buffer_count(page) > 1)
+		if (page_count(page->buffer) > 1)
 			continue;
 
 		list_del(elem);
@@ -1374,7 +1348,7 @@ static inline cas_page_t *cas_page_spare(struct cas *cp, const int index)
 	cas_page_t *page = cp->rx_pages[1][index];
 	cas_page_t *new;
 
-	if (cas_buffer_count(page) == 1)
+	if (page_count(page->buffer) == 1)
 		return page;
 
 	new = cas_page_dequeue(cp);
@@ -1394,7 +1368,7 @@ static cas_page_t *cas_page_swap(struct cas *cp, const int ring,
 	cas_page_t **page1 = cp->rx_pages[1];
 
 	/* swap if buffer is in use */
-	if (cas_buffer_count(page0[index]) > 1) {
+	if (page_count(page0[index]->buffer) > 1) {
 		cas_page_t *new = cas_page_spare(cp, index);
 		if (new) {
 			page1[index] = page0[index];
@@ -1979,6 +1953,7 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc,
 	struct cas_page *page;
 	struct sk_buff *skb;
 	void *addr, *crcaddr;
+	__sum16 csum;
 	char *p;
 
 	hlen = CAS_VAL(RX_COMP2_HDR_SIZE, words[1]);
@@ -2062,10 +2037,10 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc,
 
 		skb_shinfo(skb)->nr_frags++;
 		skb->data_len += hlen - swivel;
+		skb->truesize += hlen - swivel;
 		skb->len      += hlen - swivel;
 
 		get_page(page->buffer);
-		cas_buffer_inc(page);
 		frag->page = page->buffer;
 		frag->page_offset = off;
 		frag->size = hlen - swivel;
@@ -2090,7 +2065,6 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc,
 			frag++;
 
 			get_page(page->buffer);
-			cas_buffer_inc(page);
 			frag->page = page->buffer;
 			frag->page_offset = 0;
 			frag->size = hlen;
@@ -2158,14 +2132,15 @@ end_copy_pkt:
 		skb_put(skb, alloclen);
 	}
 
-	i = CAS_VAL(RX_COMP4_TCP_CSUM, words[3]);
+	csum = (__force __sum16)htons(CAS_VAL(RX_COMP4_TCP_CSUM, words[3]));
 	if (cp->crc_size) {
 		/* checksum includes FCS. strip it out. */
-		i = csum_fold(csum_partial(crcaddr, cp->crc_size, i));
+		csum = csum_fold(csum_partial(crcaddr, cp->crc_size,
+					      csum_unfold(csum)));
 		if (addr)
 			cas_page_unmap(addr);
 	}
-	skb->csum = ntohs(i ^ 0xffff);
+	skb->csum = csum_unfold(~csum);
 	skb->ip_summed = CHECKSUM_COMPLETE;
 	skb->protocol = eth_type_trans(skb, cp->dev);
 	return len;
@@ -2253,7 +2228,7 @@ static int cas_post_rxds_ringN(struct cas *cp, int ring, int num)
 	released = 0;
 	while (entry != last) {
 		/* make a new buffer if it's still in use */
-		if (cas_buffer_count(page[entry]) > 1) {
+		if (page_count(page[entry]->buffer) > 1) {
 			cas_page_t *new = cas_page_dequeue(cp);
 			if (!new) {
 				/* let the timer know that we need to
@@ -2611,7 +2586,7 @@ static int cas_poll(struct napi_struct *napi, int budget)
 {
 	struct cas *cp = container_of(napi, struct cas, napi);
 	struct net_device *dev = cp->dev;
-	int i, enable_intr, todo, credits;
+	int i, enable_intr, credits;
 	u32 status = readl(cp->regs + REG_INTR_STATUS);
 	unsigned long flags;
 
@@ -4375,7 +4350,7 @@ static int cas_close(struct net_device *dev)
 	struct cas *cp = netdev_priv(dev);
 
 #ifdef USE_NAPI
-	napi_enable(&cp->napi);
+	napi_disable(&cp->napi);
 #endif
 	/* Make sure we don't get distracted by suspend/resume */
 	mutex_lock(&cp->pm_mutex);
@@ -4872,6 +4847,90 @@ static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	return rc;
 }
 
+/* When this chip sits underneath an Intel 31154 bridge, it is the
+ * only subordinate device and we can tweak the bridge settings to
+ * reflect that fact.
+ */
+static void __devinit cas_program_bridge(struct pci_dev *cas_pdev)
+{
+	struct pci_dev *pdev = cas_pdev->bus->self;
+	u32 val;
+
+	if (!pdev)
+		return;
+
+	if (pdev->vendor != 0x8086 || pdev->device != 0x537c)
+		return;
+
+	/* Clear bit 10 (Bus Parking Control) in the Secondary
+	 * Arbiter Control/Status Register which lives at offset
+	 * 0x41.  Using a 32-bit word read/modify/write at 0x40
+	 * is much simpler so that's how we do this.
+	 */
+	pci_read_config_dword(pdev, 0x40, &val);
+	val &= ~0x00040000;
+	pci_write_config_dword(pdev, 0x40, val);
+
+	/* Max out the Multi-Transaction Timer settings since
+	 * Cassini is the only device present.
+	 *
+	 * The register is 16-bit and lives at 0x50.  When the
+	 * settings are enabled, it extends the GRANT# signal
+	 * for a requestor after a transaction is complete.  This
+	 * allows the next request to run without first needing
+	 * to negotiate the GRANT# signal back.
+	 *
+	 * Bits 12:10 define the grant duration:
+	 *
+	 *	1	--	16 clocks
+	 *	2	--	32 clocks
+	 *	3	--	64 clocks
+	 *	4	--	128 clocks
+	 *	5	--	256 clocks
+	 *
+	 * All other values are illegal.
+	 *
+	 * Bits 09:00 define which REQ/GNT signal pairs get the
+	 * GRANT# signal treatment.  We set them all.
+	 */
+	pci_write_config_word(pdev, 0x50, (5 << 10) | 0x3ff);
+
+	/* The Read Prefecth Policy register is 16-bit and sits at
+	 * offset 0x52.  It enables a "smart" pre-fetch policy.  We
+	 * enable it and max out all of the settings since only one
+	 * device is sitting underneath and thus bandwidth sharing is
+	 * not an issue.
+	 *
+	 * The register has several 3 bit fields, which indicates a
+	 * multiplier applied to the base amount of prefetching the
+	 * chip would do.  These fields are at:
+	 *
+	 *	15:13	---	ReRead Primary Bus
+	 *	12:10	---	FirstRead Primary Bus
+	 *	09:07	---	ReRead Secondary Bus
+	 *	06:04	---	FirstRead Secondary Bus
+	 *
+	 * Bits 03:00 control which REQ/GNT pairs the prefetch settings
+	 * get enabled on.  Bit 3 is a grouped enabler which controls
+	 * all of the REQ/GNT pairs from [8:3].  Bits 2 to 0 control
+	 * the individual REQ/GNT pairs [2:0].
+	 */
+	pci_write_config_word(pdev, 0x52,
+			      (0x7 << 13) |
+			      (0x7 << 10) |
+			      (0x7 <<  7) |
+			      (0x7 <<  4) |
+			      (0xf <<  0));
+
+	/* Force cacheline size to 0x8 */
+	pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
+
+	/* Force latency timer to maximum setting so Cassini can
+	 * sit on the bus as long as it likes.
+	 */
+	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xff);
+}
+
 static int __devinit cas_init_one(struct pci_dev *pdev,
 				  const struct pci_device_id *ent)
 {
@@ -4927,6 +4986,8 @@ static int __devinit cas_init_one(struct pci_dev *pdev,
 		printk(KERN_WARNING PFX "Could not enable MWI for %s\n",
 		       pci_name(pdev));
 
+	cas_program_bridge(pdev);
+
 	/*
 	 * On some architectures, the default cache line size set
 	 * by pci_try_set_mwi reduces perforamnce.  We have to increase
diff --git a/drivers/net/cassini.h b/drivers/net/cassini.h
index 2f93f83342d..552af89ca1c 100644
--- a/drivers/net/cassini.h
+++ b/drivers/net/cassini.h
@@ -4122,8 +4122,8 @@ cas_saturn_patch_t cas_saturn_patch[] = {
 							     inserted into
 							     outgoing frame. */
 struct cas_tx_desc {
-	u64     control;
-	u64     buffer;
+	__le64     control;
+	__le64     buffer;
 };
 
 /* descriptor ring for free buffers contains page-sized buffers. the index
@@ -4131,8 +4131,8 @@ struct cas_tx_desc {
  * the completion ring.
  */
 struct cas_rx_desc {
-	u64     index;
-	u64     buffer;
+	__le64     index;
+	__le64     buffer;
 };
 
 /* received packets are put on the completion ring. */
@@ -4210,10 +4210,10 @@ struct cas_rx_desc {
 #define RX_INDEX_RELEASE                  0x0000000000002000ULL
 
 struct cas_rx_comp {
-	u64     word1;
-	u64     word2;
-	u64     word3;
-	u64     word4;
+	__le64     word1;
+	__le64     word2;
+	__le64     word3;
+	__le64     word4;
 };
 
 enum link_state {
@@ -4252,7 +4252,7 @@ struct cas_init_block {
 	struct cas_rx_comp rxcs[N_RX_COMP_RINGS][INIT_BLOCK_RX_COMP];
 	struct cas_rx_desc rxds[N_RX_DESC_RINGS][INIT_BLOCK_RX_DESC];
 	struct cas_tx_desc txds[N_TX_RINGS][INIT_BLOCK_TX];
-	u64 tx_compwb;
+	__le64 tx_compwb;
 };
 
 /* tiny buffers to deal with target abort issue. we allocate a bit
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3168c3de491..b42f74617ba 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1027,7 +1027,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
 		memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
 		if (named++ == 0)
 			continue;
-		dot = strchr(ifa->ifa_label, ':');
+		dot = strchr(old, ':');
 		if (dot == NULL) {
 			sprintf(old, ":%d", named);
 			dot = old;
diff --git a/net/x25/x25_forward.c b/net/x25/x25_forward.c
index 8738ec7ce69..34478035e05 100644
--- a/net/x25/x25_forward.c
+++ b/net/x25/x25_forward.c
@@ -118,13 +118,14 @@ int x25_forward_data(int lci, struct x25_neigh *from, struct sk_buff *skb) {
 		goto out;
 
 	if ( (skbn = pskb_copy(skb, GFP_ATOMIC)) == NULL){
-		goto out;
+		goto output;
 
 	}
 	x25_transmit_link(skbn, nb);
 
-	x25_neigh_put(nb);
 	rc = 1;
+output:
+	x25_neigh_put(nb);
 out:
 	return rc;
 }
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index ee1e6975393..f26aaaca1fa 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1749,6 +1749,7 @@ void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid)
 }
 EXPORT_SYMBOL(km_policy_expired);
 
+#ifdef CONFIG_XFRM_MIGRATE
 int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
 	       struct xfrm_migrate *m, int num_migrate)
 {
@@ -1768,6 +1769,7 @@ int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
 	return err;
 }
 EXPORT_SYMBOL(km_migrate);
+#endif
 
 int km_report(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr)
 {