RDMA/amso1100: Start of endianness annotation

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>

1 files changed, 38 insertions, 32 deletions

diff --git a/drivers/infiniband/hw/amso1100/c2.c b/drivers/infiniband/hw/amso1100/c2.c
index c50533b5999f..113f3c03c5b5 100644
--- a/drivers/infiniband/hw/amso1100/c2.c
+++ b/drivers/infiniband/hw/amso1100/c2.c
@@ -130,10 +130,10 @@ static int c2_tx_ring_alloc(struct c2_ring *tx_ring, void *vaddr,
 		tx_desc->status = 0;
 
 		/* Set TXP_HTXD_UNINIT */
-		__raw_writeq(cpu_to_be64(0x1122334455667788ULL),
+		__raw_writeq((__force u64) cpu_to_be64(0x1122334455667788ULL),
 			     (void __iomem *) txp_desc + C2_TXP_ADDR);
 		__raw_writew(0, (void __iomem *) txp_desc + C2_TXP_LEN);
-		__raw_writew(cpu_to_be16(TXP_HTXD_UNINIT),
+		__raw_writew((__force u16) cpu_to_be16(TXP_HTXD_UNINIT),
 			     (void __iomem *) txp_desc + C2_TXP_FLAGS);
 
 		elem->skb = NULL;
@@ -179,13 +179,13 @@ static int c2_rx_ring_alloc(struct c2_ring *rx_ring, void *vaddr,
 		rx_desc->status = 0;
 
 		/* Set RXP_HRXD_UNINIT */
-		__raw_writew(cpu_to_be16(RXP_HRXD_OK),
+		__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_OK),
 		       (void __iomem *) rxp_desc + C2_RXP_STATUS);
 		__raw_writew(0, (void __iomem *) rxp_desc + C2_RXP_COUNT);
 		__raw_writew(0, (void __iomem *) rxp_desc + C2_RXP_LEN);
-		__raw_writeq(cpu_to_be64(0x99aabbccddeeffULL),
+		__raw_writeq((__force u64) cpu_to_be64(0x99aabbccddeeffULL),
 			     (void __iomem *) rxp_desc + C2_RXP_ADDR);
-		__raw_writew(cpu_to_be16(RXP_HRXD_UNINIT),
+		__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_UNINIT),
 			     (void __iomem *) rxp_desc + C2_RXP_FLAGS);
 
 		elem->skb = NULL;
@@ -239,10 +239,11 @@ static inline int c2_rx_alloc(struct c2_port *c2_port, struct c2_element *elem)
 	rxp_hdr->flags = RXP_HRXD_READY;
 
 	__raw_writew(0, elem->hw_desc + C2_RXP_STATUS);
-	__raw_writew(cpu_to_be16((u16) maplen - sizeof(*rxp_hdr)),
+	__raw_writew((__force u16) cpu_to_be16((u16) maplen - sizeof(*rxp_hdr)),
 		     elem->hw_desc + C2_RXP_LEN);
-	__raw_writeq(cpu_to_be64(mapaddr), elem->hw_desc + C2_RXP_ADDR);
-	__raw_writew(cpu_to_be16(RXP_HRXD_READY), elem->hw_desc + C2_RXP_FLAGS);
+	__raw_writeq((__force u64) cpu_to_be64(mapaddr), elem->hw_desc + C2_RXP_ADDR);
+	__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_READY),
+		     elem->hw_desc + C2_RXP_FLAGS);
 
 	elem->skb = skb;
 	elem->mapaddr = mapaddr;
@@ -290,9 +291,9 @@ static void c2_rx_clean(struct c2_port *c2_port)
 		__raw_writew(0, elem->hw_desc + C2_RXP_STATUS);
 		__raw_writew(0, elem->hw_desc + C2_RXP_COUNT);
 		__raw_writew(0, elem->hw_desc + C2_RXP_LEN);
-		__raw_writeq(cpu_to_be64(0x99aabbccddeeffULL),
+		__raw_writeq((__force u64) cpu_to_be64(0x99aabbccddeeffULL),
 			     elem->hw_desc + C2_RXP_ADDR);
-		__raw_writew(cpu_to_be16(RXP_HRXD_UNINIT),
+		__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_UNINIT),
 			     elem->hw_desc + C2_RXP_FLAGS);
 
 		if (elem->skb) {
@@ -346,16 +347,16 @@ static void c2_tx_clean(struct c2_port *c2_port)
 					     elem->hw_desc + C2_TXP_LEN);
 				__raw_writeq(0,
 					     elem->hw_desc + C2_TXP_ADDR);
-				__raw_writew(cpu_to_be16(TXP_HTXD_DONE),
+				__raw_writew((__force u16) cpu_to_be16(TXP_HTXD_DONE),
 					     elem->hw_desc + C2_TXP_FLAGS);
 				c2_port->netstats.tx_dropped++;
 				break;
 			} else {
 				__raw_writew(0,
 					     elem->hw_desc + C2_TXP_LEN);
-				__raw_writeq(cpu_to_be64(0x1122334455667788ULL),
+				__raw_writeq((__force u64) cpu_to_be64(0x1122334455667788ULL),
 					     elem->hw_desc + C2_TXP_ADDR);
-				__raw_writew(cpu_to_be16(TXP_HTXD_UNINIT),
+				__raw_writew((__force u16) cpu_to_be16(TXP_HTXD_UNINIT),
 					     elem->hw_desc + C2_TXP_FLAGS);
 			}
 
@@ -390,7 +391,7 @@ static void c2_tx_interrupt(struct net_device *netdev)
 	for (elem = tx_ring->to_clean; elem != tx_ring->to_use;
 	     elem = elem->next) {
 		txp_htxd.flags =
-		    be16_to_cpu(readw(elem->hw_desc + C2_TXP_FLAGS));
+		    be16_to_cpu((__force __be16) readw(elem->hw_desc + C2_TXP_FLAGS));
 
 		if (txp_htxd.flags != TXP_HTXD_DONE)
 			break;
@@ -398,7 +399,7 @@ static void c2_tx_interrupt(struct net_device *netdev)
 		if (netif_msg_tx_done(c2_port)) {
 			/* PCI reads are expensive in fast path */
 			txp_htxd.len =
-			    be16_to_cpu(readw(elem->hw_desc + C2_TXP_LEN));
+			    be16_to_cpu((__force __be16) readw(elem->hw_desc + C2_TXP_LEN));
 			pr_debug("%s: tx done slot %3Zu status 0x%x len "
 				"%5u bytes\n",
 				netdev->name, elem - tx_ring->start,
@@ -448,10 +449,12 @@ static void c2_rx_error(struct c2_port *c2_port, struct c2_element *elem)
 	/* Write the descriptor to the adapter's rx ring */
 	__raw_writew(0, elem->hw_desc + C2_RXP_STATUS);
 	__raw_writew(0, elem->hw_desc + C2_RXP_COUNT);
-	__raw_writew(cpu_to_be16((u16) elem->maplen - sizeof(*rxp_hdr)),
+	__raw_writew((__force u16) cpu_to_be16((u16) elem->maplen - sizeof(*rxp_hdr)),
 		     elem->hw_desc + C2_RXP_LEN);
-	__raw_writeq(cpu_to_be64(elem->mapaddr), elem->hw_desc + C2_RXP_ADDR);
-	__raw_writew(cpu_to_be16(RXP_HRXD_READY), elem->hw_desc + C2_RXP_FLAGS);
+	__raw_writeq((__force u64) cpu_to_be64(elem->mapaddr),
+		     elem->hw_desc + C2_RXP_ADDR);
+	__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_READY),
+		     elem->hw_desc + C2_RXP_FLAGS);
 
 	pr_debug("packet dropped\n");
 	c2_port->netstats.rx_dropped++;
@@ -653,7 +656,7 @@ static int c2_up(struct net_device *netdev)
 	     i++, elem++) {
 		rxp_hdr = (struct c2_rxp_hdr *) elem->skb->data;
 		rxp_hdr->flags = 0;
-		__raw_writew(cpu_to_be16(RXP_HRXD_READY),
+		__raw_writew((__force u16) cpu_to_be16(RXP_HRXD_READY),
 			     elem->hw_desc + C2_RXP_FLAGS);
 	}
 
@@ -787,9 +790,12 @@ static int c2_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	elem->maplen = maplen;
 
 	/* Tell HW to xmit */
-	__raw_writeq(cpu_to_be64(mapaddr), elem->hw_desc + C2_TXP_ADDR);
-	__raw_writew(cpu_to_be16(maplen), elem->hw_desc + C2_TXP_LEN);
-	__raw_writew(cpu_to_be16(TXP_HTXD_READY), elem->hw_desc + C2_TXP_FLAGS);
+	__raw_writeq((__force u64) cpu_to_be64(mapaddr),
+		     elem->hw_desc + C2_TXP_ADDR);
+	__raw_writew((__force u16) cpu_to_be16(maplen),
+		     elem->hw_desc + C2_TXP_LEN);
+	__raw_writew((__force u16) cpu_to_be16(TXP_HTXD_READY),
+		     elem->hw_desc + C2_TXP_FLAGS);
 
 	c2_port->netstats.tx_packets++;
 	c2_port->netstats.tx_bytes += maplen;
@@ -810,11 +816,11 @@ static int c2_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 			elem->maplen = maplen;
 
 			/* Tell HW to xmit */
-			__raw_writeq(cpu_to_be64(mapaddr),
+			__raw_writeq((__force u64) cpu_to_be64(mapaddr),
 				     elem->hw_desc + C2_TXP_ADDR);
-			__raw_writew(cpu_to_be16(maplen),
+			__raw_writew((__force u16) cpu_to_be16(maplen),
 				     elem->hw_desc + C2_TXP_LEN);
-			__raw_writew(cpu_to_be16(TXP_HTXD_READY),
+			__raw_writew((__force u16) cpu_to_be16(TXP_HTXD_READY),
 				     elem->hw_desc + C2_TXP_FLAGS);
 
 			c2_port->netstats.tx_packets++;
@@ -1029,10 +1035,10 @@ static int __devinit c2_probe(struct pci_dev *pcidev,
 	}
 
 	/* Validate the adapter version */
-	if (be32_to_cpu(readl(mmio_regs + C2_REGS_VERS)) != C2_VERSION) {
+	if (be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_VERS)) != C2_VERSION) {
 		printk(KERN_ERR PFX "Version mismatch "
 			"[fw=%u, c2=%u], Adapter not claimed\n",
-			be32_to_cpu(readl(mmio_regs + C2_REGS_VERS)),
+			be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_VERS)),
 			C2_VERSION);
 		ret = -EINVAL;
 		iounmap(mmio_regs);
@@ -1040,12 +1046,12 @@ static int __devinit c2_probe(struct pci_dev *pcidev,
 	}
 
 	/* Validate the adapter IVN */
-	if (be32_to_cpu(readl(mmio_regs + C2_REGS_IVN)) != C2_IVN) {
+	if (be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_IVN)) != C2_IVN) {
 		printk(KERN_ERR PFX "Downlevel FIrmware level. You should be using "
 		       "the OpenIB device support kit. "
 		       "[fw=0x%x, c2=0x%x], Adapter not claimed\n",
-			be32_to_cpu(readl(mmio_regs + C2_REGS_IVN)),
-			C2_IVN);
+		       be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_IVN)),
+		       C2_IVN);
 		ret = -EINVAL;
 		iounmap(mmio_regs);
 		goto bail2;
@@ -1068,7 +1074,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev,
 
 	/* Get the last RX index */
 	c2dev->cur_rx =
-	    (be32_to_cpu(readl(mmio_regs + C2_REGS_HRX_CUR)) -
+	    (be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_HRX_CUR)) -
 	     0xffffc000) / sizeof(struct c2_rxp_desc);
 
 	/* Request an interrupt line for the driver */
@@ -1090,7 +1096,7 @@ static int __devinit c2_probe(struct pci_dev *pcidev,
 	}
 
 	/* Save off the actual size prior to unmapping mmio_regs */
-	kva_map_size = be32_to_cpu(readl(mmio_regs + C2_REGS_PCI_WINSIZE));
+	kva_map_size = be32_to_cpu((__force __be32) readl(mmio_regs + C2_REGS_PCI_WINSIZE));
 
 	/* Unmap the adapter PCI registers in BAR4 */
 	iounmap(mmio_regs);