Merge tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

  - first part of an overhaul of the NuBus subsystem, to bring it up to
    modern driver model standards

  - a race condition fix for Mac

  - defconfig updates

* tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  MAINTAINERS: Add NuBus subsystem entry
  m68k/mac: Fix race conditions in OSS interrupt dispatch
  nubus: Add support for the driver model
  nubus: Add expansion_type values for various Mac models
  nubus: Adopt standard linked list implementation
  nubus: Rename struct nubus_dev
  nubus: Rework /proc/bus/nubus/s/ implementation
  nubus: Generalize block resource handling
  nubus: Clean up whitespace
  nubus: Remove redundant code
  nubus: Call proc_mkdir() not more than once per slot directory
  nubus: Validate slot resource IDs
  nubus: Fix log spam
  nubus: Use static functions where possible
  nubus: Fix up header split
  nubus: Avoid array underflow and overflow
  m68k/defconfig: Update defconfigs for v4.15-rc1

3 files changed, 41 insertions, 36 deletions

diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c
index 9497f18eaba0..2f91ce8dc614 100644
--- a/drivers/net/ethernet/8390/mac8390.c
+++ b/drivers/net/ethernet/8390/mac8390.c
@@ -123,7 +123,8 @@ enum mac8390_access {
 };
 
 extern int mac8390_memtest(struct net_device *dev);
-static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev,
+static int mac8390_initdev(struct net_device *dev,
+			   struct nubus_rsrc *ndev,
 			   enum mac8390_type type);
 
 static int mac8390_open(struct net_device *dev);
@@ -169,11 +170,11 @@ static void word_memcpy_tocard(unsigned long tp, const void *fp, int count);
 static void word_memcpy_fromcard(void *tp, unsigned long fp, int count);
 static u32 mac8390_msg_enable;
 
-static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
+static enum mac8390_type __init mac8390_ident(struct nubus_rsrc *fres)
 {
-	switch (dev->dr_sw) {
+	switch (fres->dr_sw) {
 	case NUBUS_DRSW_3COM:
-		switch (dev->dr_hw) {
+		switch (fres->dr_hw) {
 		case NUBUS_DRHW_APPLE_SONIC_NB:
 		case NUBUS_DRHW_APPLE_SONIC_LC:
 		case NUBUS_DRHW_SONNET:
@@ -184,7 +185,7 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
 		break;
 
 	case NUBUS_DRSW_APPLE:
-		switch (dev->dr_hw) {
+		switch (fres->dr_hw) {
 		case NUBUS_DRHW_ASANTE_LC:
 			return MAC8390_NONE;
 		case NUBUS_DRHW_CABLETRON:
@@ -201,7 +202,7 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
 	case NUBUS_DRSW_TECHWORKS:
 	case NUBUS_DRSW_DAYNA2:
 	case NUBUS_DRSW_DAYNA_LC:
-		if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
+		if (fres->dr_hw == NUBUS_DRHW_CABLETRON)
 			return MAC8390_CABLETRON;
 		else
 			return MAC8390_APPLE;
@@ -212,7 +213,7 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
 		break;
 
 	case NUBUS_DRSW_KINETICS:
-		switch (dev->dr_hw) {
+		switch (fres->dr_hw) {
 		case NUBUS_DRHW_INTERLAN:
 			return MAC8390_INTERLAN;
 		default:
@@ -225,8 +226,8 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
 		 * These correspond to Dayna Sonic cards
 		 * which use the macsonic driver
 		 */
-		if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
-		    dev->dr_hw == NUBUS_DRHW_INTERLAN)
+		if (fres->dr_hw == NUBUS_DRHW_SMC9194 ||
+		    fres->dr_hw == NUBUS_DRHW_INTERLAN)
 			return MAC8390_NONE;
 		else
 			return MAC8390_DAYNA;
@@ -289,7 +290,8 @@ static int __init mac8390_memsize(unsigned long membase)
 	return i * 0x1000;
 }
 
-static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev,
+static bool __init mac8390_init(struct net_device *dev,
+				struct nubus_rsrc *ndev,
 				enum mac8390_type cardtype)
 {
 	struct nubus_dir dir;
@@ -394,7 +396,7 @@ static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev,
 struct net_device * __init mac8390_probe(int unit)
 {
 	struct net_device *dev;
-	struct nubus_dev *ndev = NULL;
+	struct nubus_rsrc *ndev = NULL;
 	int err = -ENODEV;
 	struct ei_device *ei_local;
 
@@ -414,8 +416,11 @@ struct net_device * __init mac8390_probe(int unit)
 	if (unit >= 0)
 		sprintf(dev->name, "eth%d", unit);
 
-	while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET,
-				       ndev))) {
+	for_each_func_rsrc(ndev) {
+		if (ndev->category != NUBUS_CAT_NETWORK ||
+		    ndev->type != NUBUS_TYPE_ETHERNET)
+			continue;
+
 		/* Have we seen it already? */
 		if (slots & (1 << ndev->board->slot))
 			continue;
@@ -489,7 +494,7 @@ static const struct net_device_ops mac8390_netdev_ops = {
 };
 
 static int __init mac8390_initdev(struct net_device *dev,
-				  struct nubus_dev *ndev,
+				  struct nubus_rsrc *ndev,
 				  enum mac8390_type type)
 {
 	static u32 fwrd4_offsets[16] = {
diff --git a/drivers/net/ethernet/cirrus/mac89x0.c b/drivers/net/ethernet/cirrus/mac89x0.c
index f910f0f386d6..977d4c2c759d 100644
--- a/drivers/net/ethernet/cirrus/mac89x0.c
+++ b/drivers/net/ethernet/cirrus/mac89x0.c
@@ -187,6 +187,7 @@ struct net_device * __init mac89x0_probe(int unit)
 	unsigned long ioaddr;
 	unsigned short sig;
 	int err = -ENODEV;
+	struct nubus_rsrc *fres;
 
 	if (!MACH_IS_MAC)
 		return ERR_PTR(-ENODEV);
@@ -207,8 +208,9 @@ struct net_device * __init mac89x0_probe(int unit)
 	/* We might have to parameterize this later */
 	slot = 0xE;
 	/* Get out now if there's a real NuBus card in slot E */
-	if (nubus_find_slot(slot, NULL) != NULL)
-		goto out;
+	for_each_func_rsrc(fres)
+		if (fres->board->slot == slot)
+			goto out;
 
 	/* The pseudo-ISA bits always live at offset 0x300 (gee,
            wonder why...) */
diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index a42433fb6949..b922ab5cedea 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -311,7 +311,7 @@ static int mac_onboard_sonic_probe(struct net_device *dev)
 {
 	struct sonic_local* lp = netdev_priv(dev);
 	int sr;
-	int commslot = 0;
+	bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM;
 
 	if (!MACH_IS_MAC)
 		return -ENODEV;
@@ -322,10 +322,7 @@ static int mac_onboard_sonic_probe(struct net_device *dev)
 	   Ethernet (BTW, the Ethernet *is* always at the same
 	   address, and nothing else lives there, at least if Apple's
 	   documentation is to be believed) */
-	if (macintosh_config->ident == MAC_MODEL_Q630 ||
-	    macintosh_config->ident == MAC_MODEL_P588 ||
-	    macintosh_config->ident == MAC_MODEL_P575 ||
-	    macintosh_config->ident == MAC_MODEL_C610) {
+	if (commslot || macintosh_config->ident == MAC_MODEL_C610) {
 		int card_present;
 
 		card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
@@ -333,7 +330,6 @@ static int mac_onboard_sonic_probe(struct net_device *dev)
 			printk("none.\n");
 			return -ENODEV;
 		}
-		commslot = 1;
 	}
 
 	printk("yes\n");
@@ -428,26 +424,26 @@ static int mac_nubus_sonic_ethernet_addr(struct net_device *dev,
 	return 0;
 }
 
-static int macsonic_ident(struct nubus_dev *ndev)
+static int macsonic_ident(struct nubus_rsrc *fres)
 {
-	if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
-	    ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
+	if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC &&
+	    fres->dr_sw == NUBUS_DRSW_SONIC_LC)
 		return MACSONIC_DAYNALINK;
-	if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
-	    ndev->dr_sw == NUBUS_DRSW_APPLE) {
+	if (fres->dr_hw == NUBUS_DRHW_SONIC &&
+	    fres->dr_sw == NUBUS_DRSW_APPLE) {
 		/* There has to be a better way to do this... */
-		if (strstr(ndev->board->name, "DuoDock"))
+		if (strstr(fres->board->name, "DuoDock"))
 			return MACSONIC_DUODOCK;
 		else
 			return MACSONIC_APPLE;
 	}
 
-	if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
-	    ndev->dr_sw == NUBUS_DRSW_DAYNA)
+	if (fres->dr_hw == NUBUS_DRHW_SMC9194 &&
+	    fres->dr_sw == NUBUS_DRSW_DAYNA)
 		return MACSONIC_DAYNA;
 
-	if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
-	    ndev->dr_sw == 0) { /* huh? */
+	if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
+	    fres->dr_sw == 0) { /* huh? */
 		return MACSONIC_APPLE16;
 	}
 	return -1;
@@ -456,7 +452,7 @@ static int macsonic_ident(struct nubus_dev *ndev)
 static int mac_nubus_sonic_probe(struct net_device *dev)
 {
 	static int slots;
-	struct nubus_dev* ndev = NULL;
+	struct nubus_rsrc *ndev = NULL;
 	struct sonic_local* lp = netdev_priv(dev);
 	unsigned long base_addr, prom_addr;
 	u16 sonic_dcr;
@@ -464,9 +460,11 @@ static int mac_nubus_sonic_probe(struct net_device *dev)
 	int reg_offset, dma_bitmode;
 
 	/* Find the first SONIC that hasn't been initialized already */
-	while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
-				       NUBUS_TYPE_ETHERNET, ndev)) != NULL)
-	{
+	for_each_func_rsrc(ndev) {
+		if (ndev->category != NUBUS_CAT_NETWORK ||
+		    ndev->type != NUBUS_TYPE_ETHERNET)
+			continue;
+
 		/* Have we seen it already? */
 		if (slots & (1<<ndev->board->slot))
 			continue;