Merge branch 'arnd-net-driver-fixes'

Arnd Bergmann says:

====================
network driver fixes

This is an updated series of fixes for the network device drivers
that showed warnings in ARM randconfig.

Changes since v1 are:

dropped "net: macb: avoid uninitialized variables", already fixed in net-next

dropped "net: fddi/defxx: avoid warning about uninitialized variable
	use", already fixed in net-next

added missing barriers in "net: moxart: use correct accessors for
	DMA memory"

clarified "net: bgmac: clarify CONFIG_BCMA dependency" changelog
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 25 insertions, 47 deletions

diff --git a/drivers/net/ethernet/aurora/nb8800.c b/drivers/net/ethernet/aurora/nb8800.c
index ecc4a334c507..f71ab2647a3b 100644
--- a/drivers/net/ethernet/aurora/nb8800.c
+++ b/drivers/net/ethernet/aurora/nb8800.c
@@ -302,7 +302,7 @@ static int nb8800_poll(struct napi_struct *napi, int budget)
 	nb8800_tx_done(dev);
 
 again:
-	while (work < budget) {
+	do {
 		struct nb8800_rx_buf *rxb;
 		unsigned int len;
 
@@ -330,7 +330,7 @@ again:
 		rxd->report = 0;
 		last = next;
 		work++;
-	}
+	} while (work < budget);
 
 	if (work) {
 		priv->rx_descs[last].desc.config |= DESC_EOC;
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 8550df189ceb..19f7cd02e085 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -151,8 +151,11 @@ config BNX2X_VXLAN
 
 config BGMAC
 	tristate "BCMA bus GBit core support"
-	depends on BCMA_HOST_SOC && HAS_DMA && (BCM47XX || ARCH_BCM_5301X)
+	depends on BCMA && BCMA_HOST_SOC
+	depends on HAS_DMA
+	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
 	select PHYLIB
+	select FIXED_PHY
 	---help---
 	  This driver supports GBit MAC and BCM4706 GBit MAC cores on BCMA bus.
 	  They can be found on BCM47xx SoCs and provide gigabit ethernet.
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 9293675df7ba..49eea8981332 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -12016,7 +12016,7 @@ static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
 	int ret;
 	u32 offset, len, b_offset, odd_len;
 	u8 *buf;
-	__be32 start, end;
+	__be32 start = 0, end;
 
 	if (tg3_flag(tp, NO_NVRAM) ||
 	    eeprom->magic != TG3_EEPROM_MAGIC)
diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index 1d5c3e16d8f4..3daf2d4a7ca0 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -194,7 +194,6 @@ static const char *hp100_isa_tbl[] = {
 };
 #endif
 
-#ifdef CONFIG_EISA
 static struct eisa_device_id hp100_eisa_tbl[] = {
 	{ "HWPF180" }, /* HP J2577 rev A */
 	{ "HWP1920" }, /* HP 27248B */
@@ -205,9 +204,7 @@ static struct eisa_device_id hp100_eisa_tbl[] = {
 	{ "" }	       /* Mandatory final entry ! */
 };
 MODULE_DEVICE_TABLE(eisa, hp100_eisa_tbl);
-#endif
 
-#ifdef CONFIG_PCI
 static const struct pci_device_id hp100_pci_tbl[] = {
 	{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585A, PCI_ANY_ID, PCI_ANY_ID,},
 	{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_J2585B, PCI_ANY_ID, PCI_ANY_ID,},
@@ -219,7 +216,6 @@ static const struct pci_device_id hp100_pci_tbl[] = {
 	{}			/* Terminating entry */
 };
 MODULE_DEVICE_TABLE(pci, hp100_pci_tbl);
-#endif
 
 static int hp100_rx_ratio = HP100_DEFAULT_RX_RATIO;
 static int hp100_priority_tx = HP100_DEFAULT_PRIORITY_TX;
@@ -2842,7 +2838,6 @@ static void cleanup_dev(struct net_device *d)
 	free_netdev(d);
 }
 
-#ifdef CONFIG_EISA
 static int hp100_eisa_probe(struct device *gendev)
 {
 	struct net_device *dev = alloc_etherdev(sizeof(struct hp100_private));
@@ -2884,9 +2879,7 @@ static struct eisa_driver hp100_eisa_driver = {
 		.remove  = hp100_eisa_remove,
         }
 };
-#endif
 
-#ifdef CONFIG_PCI
 static int hp100_pci_probe(struct pci_dev *pdev,
 			   const struct pci_device_id *ent)
 {
@@ -2955,7 +2948,6 @@ static struct pci_driver hp100_pci_driver = {
 	.probe		= hp100_pci_probe,
 	.remove		= hp100_pci_remove,
 };
-#endif
 
 /*
  *  module section
@@ -3032,23 +3024,17 @@ static int __init hp100_module_init(void)
 	err = hp100_isa_init();
 	if (err && err != -ENODEV)
 		goto out;
-#ifdef CONFIG_EISA
 	err = eisa_driver_register(&hp100_eisa_driver);
 	if (err && err != -ENODEV)
 		goto out2;
-#endif
-#ifdef CONFIG_PCI
 	err = pci_register_driver(&hp100_pci_driver);
 	if (err && err != -ENODEV)
 		goto out3;
-#endif
  out:
 	return err;
  out3:
-#ifdef CONFIG_EISA
 	eisa_driver_unregister (&hp100_eisa_driver);
  out2:
-#endif
 	hp100_isa_cleanup();
 	goto out;
 }
@@ -3057,12 +3043,8 @@ static int __init hp100_module_init(void)
 static void __exit hp100_module_exit(void)
 {
 	hp100_isa_cleanup();
-#ifdef CONFIG_EISA
 	eisa_driver_unregister (&hp100_eisa_driver);
-#endif
-#ifdef CONFIG_PCI
 	pci_unregister_driver (&hp100_pci_driver);
-#endif
 }
 
 module_init(hp100_module_init)
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index 50d5604833ed..e0993eba5df3 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -2223,8 +2223,6 @@ static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
 	return IRQ_NONE;
 }
 
-#ifdef CONFIG_PCI_MSI
-
 static irqreturn_t vxge_tx_msix_handle(int irq, void *dev_id)
 {
 	struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
@@ -2442,16 +2440,13 @@ static void vxge_rem_msix_isr(struct vxgedev *vdev)
 	if (vdev->config.intr_type == MSI_X)
 		pci_disable_msix(vdev->pdev);
 }
-#endif
 
 static void vxge_rem_isr(struct vxgedev *vdev)
 {
-#ifdef CONFIG_PCI_MSI
-	if (vdev->config.intr_type == MSI_X) {
+	if (IS_ENABLED(CONFIG_PCI_MSI) &&
+	    vdev->config.intr_type == MSI_X) {
 		vxge_rem_msix_isr(vdev);
-	} else
-#endif
-	if (vdev->config.intr_type == INTA) {
+	} else if (vdev->config.intr_type == INTA) {
 			synchronize_irq(vdev->pdev->irq);
 			free_irq(vdev->pdev->irq, vdev);
 	}
@@ -2460,11 +2455,10 @@ static void vxge_rem_isr(struct vxgedev *vdev)
 static int vxge_add_isr(struct vxgedev *vdev)
 {
 	int ret = 0;
-#ifdef CONFIG_PCI_MSI
 	int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
 	int pci_fun = PCI_FUNC(vdev->pdev->devfn);
 
-	if (vdev->config.intr_type == MSI_X)
+	if (IS_ENABLED(CONFIG_PCI_MSI) && vdev->config.intr_type == MSI_X)
 		ret = vxge_enable_msix(vdev);
 
 	if (ret) {
@@ -2475,7 +2469,7 @@ static int vxge_add_isr(struct vxgedev *vdev)
 		vdev->config.intr_type = INTA;
 	}
 
-	if (vdev->config.intr_type == MSI_X) {
+	if (IS_ENABLED(CONFIG_PCI_MSI) && vdev->config.intr_type == MSI_X) {
 		for (intr_idx = 0;
 		     intr_idx < (vdev->no_of_vpath *
 			VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
@@ -2576,9 +2570,8 @@ static int vxge_add_isr(struct vxgedev *vdev)
 		vdev->vxge_entries[intr_cnt].in_use = 1;
 		vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
 	}
-INTA_MODE:
-#endif
 
+INTA_MODE:
 	if (vdev->config.intr_type == INTA) {
 		snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
 			"%s:vxge:INTA", vdev->ndev->name);
@@ -3889,12 +3882,12 @@ static void vxge_device_config_init(struct vxge_hw_device_config *device_config,
 	if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
 		max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
 
-#ifndef CONFIG_PCI_MSI
-	vxge_debug_init(VXGE_ERR,
-		"%s: This Kernel does not support "
-		"MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
-	*intr_type = INTA;
-#endif
+	if (!IS_ENABLED(CONFIG_PCI_MSI)) {
+		vxge_debug_init(VXGE_ERR,
+			"%s: This Kernel does not support "
+			"MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
+		*intr_type = INTA;
+	}
 
 	/* Configure whether MSI-X or IRQL. */
 	switch (*intr_type) {
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 657b65bf5cac..18bf3a8fdc50 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -82,7 +82,7 @@ struct cpdma_desc {
 
 struct cpdma_desc_pool {
 	phys_addr_t		phys;
-	u32			hw_addr;
+	dma_addr_t		hw_addr;
 	void __iomem		*iomap;		/* ioremap map */
 	void			*cpumap;	/* dma_alloc map */
 	int			desc_size, mem_size;
@@ -152,7 +152,7 @@ struct cpdma_chan {
  * abstract out these details
  */
 static struct cpdma_desc_pool *
-cpdma_desc_pool_create(struct device *dev, u32 phys, u32 hw_addr,
+cpdma_desc_pool_create(struct device *dev, u32 phys, dma_addr_t hw_addr,
 				int size, int align)
 {
 	int bitmap_size;
@@ -176,13 +176,13 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, u32 hw_addr,
 
 	if (phys) {
 		pool->phys  = phys;
-		pool->iomap = ioremap(phys, size);
+		pool->iomap = ioremap(phys, size); /* should be memremap? */
 		pool->hw_addr = hw_addr;
 	} else {
-		pool->cpumap = dma_alloc_coherent(dev, size, &pool->phys,
+		pool->cpumap = dma_alloc_coherent(dev, size, &pool->hw_addr,
 						  GFP_KERNEL);
-		pool->iomap = pool->cpumap;
-		pool->hw_addr = pool->phys;
+		pool->iomap = (void __iomem __force *)pool->cpumap;
+		pool->phys = pool->hw_addr; /* assumes no IOMMU, don't use this value */
 	}
 
 	if (pool->iomap)