Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
  pcmcia: validate late-added resources
  pcmcia: allow for extension of resource interval
  pcmcia: remove useless msleep in ds.c
  pcmcia: use read_cis_mem return value
  pcmcia: handle error in serial_cs config calls
  pcmcia: add locking to pcmcia_{read,write}_cis_mem
  pcmcia: avoid prod_id memleak
  pcmcia: avoid sysfs-related lockup for cardbus
  pcmcia: use state machine for extended requery
  pcmcia: delay re-scanning and re-querying of PCMCIA bus
  pcmcia: use pccardd to handle eject, insert, suspend and resume requests
  pcmcia: use ops_mutex for rsrc_{mgr,nonstatic} locking
  pcmcia: use mutex for dynid lock
  pcmcia: assert locking to struct pcmcia_device
  pcmcia: add locking documentation
  pcmcia: simplify locking
  pcmcia: add locking to struct pcmcia_socket->pcmcia_state()
  pcmcia: protect s->device_count
  pcmcia: properly lock skt->irq, skt->irq_mask
  pcmcia: lock ops->set_socket
  ...

Documentation/pcmcia/locking.txt

+This file explains the locking and exclusion scheme used in the PCCARD
+and PCMCIA subsystems.
+
+
+A) Overview, Locking Hierarchy:
+===============================
+
+pcmcia_socket_list_rwsem	- protects only the list of sockets
+- skt_mutex			- serializes card insert / ejection
+  - ops_mutex			- serializes socket operation
+
+
+B) Exclusion
+============
+
+The following functions and callbacks to struct pcmcia_socket must
+be called with "skt_mutex" held:
+
+	socket_detect_change()
+	send_event()
+	socket_reset()
+	socket_shutdown()
+	socket_setup()
+	socket_remove()
+	socket_insert()
+	socket_early_resume()
+	socket_late_resume()
+	socket_resume()
+	socket_suspend()
+
+	struct pcmcia_callback	*callback
+
+The following functions and callbacks to struct pcmcia_socket must
+be called with "ops_mutex" held:
+
+	socket_reset()
+	socket_setup()
+
+	struct pccard_operations	*ops
+	struct pccard_resource_ops	*resource_ops;
+
+Note that send_event() and struct pcmcia_callback *callback must not be
+called with "ops_mutex" held.
+
+
+C) Protection
+=============
+
+1. Global Data:
+---------------
+struct list_head	pcmcia_socket_list;
+
+protected by pcmcia_socket_list_rwsem;
+
+
+2. Per-Socket Data:
+-------------------
+The resource_ops and their data are protected by ops_mutex.
+
+The "main" struct pcmcia_socket is protected as follows (read-only fields
+or single-use fields not mentioned):
+
+- by pcmcia_socket_list_rwsem:
+	struct list_head	socket_list;
+
+- by thread_lock:
+	unsigned int		thread_events;
+
+- by skt_mutex:
+	u_int			suspended_state;
+	void			(*tune_bridge);
+	struct pcmcia_callback	*callback;
+	int			resume_status;
+
+- by ops_mutex:
+	socket_state_t		socket;
+	u_int			state;
+	u_short			lock_count;
+	pccard_mem_map		cis_mem;
+	void __iomem 		*cis_virt;
+	struct { }		irq;
+	io_window_t		io[];
+	pccard_mem_map		win[];
+	struct list_head	cis_cache;
+	size_t			fake_cis_len;
+	u8			*fake_cis;
+	u_int			irq_mask;
+	void 			(*zoom_video);
+	int 			(*power_hook);
+	u8			resource...;
+	struct list_head	devices_list;
+	u8			device_count;
+	struct 			pcmcia_state;
+
+
+3. Per PCMCIA-device Data:
+--------------------------
+
+The "main" struct pcmcia_devie is protected as follows (read-only fields
+or single-use fields not mentioned):
+
+
+- by pcmcia_socket->ops_mutex:
+	struct list_head	socket_device_list;
+	struct config_t		*function_config;
+	u16			_irq:1;
+	u16			_io:1;
+	u16			_win:4;
+	u16			_locked:1;
+	u16			allow_func_id_match:1;
+	u16			suspended:1;
+	u16			_removed:1;
+
+- by the PCMCIA driver:
+	io_req_t		io;
+	irq_req_t		irq;
+	config_req_t		conf;
+	window_handle_t		win;

drivers/char/pcmcia/cm4000_cs.c

@@ -1047,7 +1047,7 @@ static ssize_t cmm_read(struct file *filp, __user char *buf, size_t count,
 static ssize_t cmm_write(struct file *filp, const char __user *buf,
 			 size_t count, loff_t *ppos)
 {
-	struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
+	struct cm4000_dev *dev = filp->private_data;
 	unsigned int iobase = dev->p_dev->io.BasePort1;
 	unsigned short s;
 	unsigned char tmp;

drivers/net/pcmcia/smc91c92_cs.c

@@ -453,8 +453,7 @@ static int mhz_mfc_config(struct pcmcia_device *link)
 
     link->conf.Attributes |= CONF_ENABLE_SPKR;
     link->conf.Status = CCSR_AUDIO_ENA;
-    link->irq.Attributes =
-	IRQ_TYPE_DYNAMIC_SHARING;
+    link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
     link->io.IOAddrLines = 16;
     link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
     link->io.NumPorts2 = 8;
@@ -652,8 +651,7 @@ static int osi_config(struct pcmcia_device *link)
 
     link->conf.Attributes |= CONF_ENABLE_SPKR;
     link->conf.Status = CCSR_AUDIO_ENA;
-    link->irq.Attributes =
-	IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+    link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
     link->io.NumPorts1 = 64;
     link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
     link->io.NumPorts2 = 8;

drivers/pcmcia/Kconfig

@@ -84,7 +84,7 @@ config YENTA
 	tristate "CardBus yenta-compatible bridge support"
 	depends on PCI
 	select CARDBUS if !EMBEDDED
-	select PCCARD_NONSTATIC
+	select PCCARD_NONSTATIC if PCMCIA != n
 	---help---
 	  This option enables support for CardBus host bridges.  Virtually
 	  all modern PCMCIA bridges are CardBus compatible.  A "bridge" is
@@ -161,9 +161,8 @@ config TCIC
 
 config PCMCIA_M8XX
 	tristate "MPC8xx PCMCIA support"
-	depends on PCMCIA && PPC && 8xx
-	select PCCARD_IODYN
-	select PCCARD_NONSTATIC
+	depends on PCCARD && PPC && 8xx
+	select PCCARD_IODYN if PCMCIA != n
 	help
 	  Say Y here to include support for PowerPC 8xx series PCMCIA
 	  controller.
@@ -238,14 +237,12 @@ config PCMCIA_PROBE
 config M32R_PCC
 	bool "M32R PCMCIA I/F"
 	depends on M32R && CHIP_M32700 && PCMCIA
-	select PCCARD_NONSTATIC
 	help
 	  Say Y here to use the M32R PCMCIA controller.
 
 config M32R_CFC
 	bool "M32R CF I/F Controller"
 	depends on M32R && (PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2 || PLAT_MAPPI3 || PLAT_OPSPUT)
-	select PCCARD_NONSTATIC
 	help
 	  Say Y here to use the M32R CompactFlash controller.
 

drivers/pcmcia/Makefile

@@ -2,11 +2,11 @@
 # Makefile for the kernel pcmcia subsystem (c/o David Hinds)
 #
 
-pcmcia_core-y					+= cs.o cistpl.o rsrc_mgr.o socket_sysfs.o
+pcmcia_core-y					+= cs.o rsrc_mgr.o socket_sysfs.o
 pcmcia_core-$(CONFIG_CARDBUS)			+= cardbus.o
 obj-$(CONFIG_PCCARD)				+= pcmcia_core.o
 
-pcmcia-y					+= ds.o pcmcia_resource.o
+pcmcia-y					+= ds.o pcmcia_resource.o cistpl.o
 pcmcia-$(CONFIG_PCMCIA_IOCTL)			+= pcmcia_ioctl.o
 obj-$(CONFIG_PCMCIA)				+= pcmcia.o
 

drivers/pcmcia/at91_cf.c

@@ -52,8 +52,6 @@ struct at91_cf_socket {
 	unsigned long		phys_baseaddr;
 };
 
-#define	SZ_2K			(2 * SZ_1K)
-
 static inline int at91_cf_present(struct at91_cf_socket *cf)
 {
 	return !gpio_get_value(cf->board->det_pin);

drivers/pcmcia/bfin_cf_pcmcia.c

@@ -205,7 +205,7 @@ static int __devinit bfin_cf_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "Blackfin CompactFlash/PCMCIA Socket Driver\n");
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq)
+	if (irq <= 0)
 		return -EINVAL;
 
 	cd_pfx = platform_get_irq(pdev, 1);	/*Card Detect GPIO PIN */

drivers/pcmcia/cardbus.c

@@ -20,170 +20,12 @@
  */
 
 
-#include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
+#include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <asm/irq.h>
 
-#include <pcmcia/cs_types.h>
 #include <pcmcia/ss.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
-
-/*====================================================================*/
-
-/* Offsets in the Expansion ROM Image Header */
-#define ROM_SIGNATURE		0x0000	/* 2 bytes */
-#define ROM_DATA_PTR		0x0018	/* 2 bytes */
-
-/* Offsets in the CardBus PC Card Data Structure */
-#define PCDATA_SIGNATURE	0x0000	/* 4 bytes */
-#define PCDATA_VPD_PTR		0x0008	/* 2 bytes */
-#define PCDATA_LENGTH		0x000a	/* 2 bytes */
-#define PCDATA_REVISION		0x000c
-#define PCDATA_IMAGE_SZ		0x0010	/* 2 bytes */
-#define PCDATA_ROM_LEVEL	0x0012	/* 2 bytes */
-#define PCDATA_CODE_TYPE	0x0014
-#define PCDATA_INDICATOR	0x0015
-
-/*=====================================================================
-
-    Expansion ROM's have a special layout, and pointers specify an
-    image number and an offset within that image.  xlate_rom_addr()
-    converts an image/offset address to an absolute offset from the
-    ROM's base address.
-
-=====================================================================*/
-
-static u_int xlate_rom_addr(void __iomem *b, u_int addr)
-{
-	u_int img = 0, ofs = 0, sz;
-	u_short data;
-	while ((readb(b) == 0x55) && (readb(b + 1) == 0xaa)) {
-		if (img == (addr >> 28))
-			return (addr & 0x0fffffff) + ofs;
-		data = readb(b + ROM_DATA_PTR) + (readb(b + ROM_DATA_PTR + 1) << 8);
-		sz = 512 * (readb(b + data + PCDATA_IMAGE_SZ) +
-			    (readb(b + data + PCDATA_IMAGE_SZ + 1) << 8));
-		if ((sz == 0) || (readb(b + data + PCDATA_INDICATOR) & 0x80))
-			break;
-		b += sz;
-		ofs += sz;
-		img++;
-	}
-	return 0;
-}
-
-/*=====================================================================
-
-    These are similar to setup_cis_mem and release_cis_mem for 16-bit
-    cards.  The "result" that is used externally is the cb_cis_virt
-    pointer in the struct pcmcia_socket structure.
-
-=====================================================================*/
-
-static void cb_release_cis_mem(struct pcmcia_socket *s)
-{
-	if (s->cb_cis_virt) {
-		dev_dbg(&s->dev, "cb_release_cis_mem()\n");
-		iounmap(s->cb_cis_virt);
-		s->cb_cis_virt = NULL;
-		s->cb_cis_res = NULL;
-	}
-}
-
-static int cb_setup_cis_mem(struct pcmcia_socket *s, struct resource *res)
-{
-	unsigned int start, size;
-
-	if (res == s->cb_cis_res)
-		return 0;
-
-	if (s->cb_cis_res)
-		cb_release_cis_mem(s);
-
-	start = res->start;
-	size = res->end - start + 1;
-	s->cb_cis_virt = ioremap(start, size);
-
-	if (!s->cb_cis_virt)
-		return -1;
-
-	s->cb_cis_res = res;
-
-	return 0;
-}
-
-/*=====================================================================
-
-    This is used by the CIS processing code to read CIS information
-    from a CardBus device.
-
-=====================================================================*/
-
-int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
-		void *ptr)
-{
-	struct pci_dev *dev;
-	struct resource *res;
-
-	dev_dbg(&s->dev, "read_cb_mem(%d, %#x, %u)\n", space, addr, len);
 
-	dev = pci_get_slot(s->cb_dev->subordinate, 0);
-	if (!dev)
-		goto fail;
-
-	/* Config space? */
-	if (space == 0) {
-		if (addr + len > 0x100)
-			goto failput;
-		for (; len; addr++, ptr++, len--)
-			pci_read_config_byte(dev, addr, ptr);
-		return 0;
-	}
-
-	res = dev->resource + space - 1;
-
-	pci_dev_put(dev);
-
-	if (!res->flags)
-		goto fail;
-
-	if (cb_setup_cis_mem(s, res) != 0)
-		goto fail;
-
-	if (space == 7) {
-		addr = xlate_rom_addr(s->cb_cis_virt, addr);
-		if (addr == 0)
-			goto fail;
-	}
-
-	if (addr + len > res->end - res->start)
-		goto fail;
-
-	memcpy_fromio(ptr, s->cb_cis_virt + addr, len);
-	return 0;
-
-failput:
-	pci_dev_put(dev);
-fail:
-	memset(ptr, 0xff, len);
-	return -1;
-}
-
-/*=====================================================================
-
-    cb_alloc() and cb_free() allocate and free the kernel data
-    structures for a Cardbus device, and handle the lowest level PCI
-    device setup issues.
-
-=====================================================================*/
 
 static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
 {
@@ -215,6 +57,13 @@ static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
 	}
 }
 
+/**
+ * cb_alloc() - add CardBus device
+ * @s:		the pcmcia_socket where the CardBus device is located
+ *
+ * cb_alloc() allocates the kernel data structures for a Cardbus device
+ * and handles the lowest level PCI device setup issues.
+ */
 int __ref cb_alloc(struct pcmcia_socket *s)
 {
 	struct pci_bus *bus = s->cb_dev->subordinate;
@@ -249,12 +98,16 @@ int __ref cb_alloc(struct pcmcia_socket *s)
 	return 0;
 }
 
+/**
+ * cb_free() - remove CardBus device
+ * @s:		the pcmcia_socket where the CardBus device was located
+ *
+ * cb_free() handles the lowest level PCI device cleanup.
+ */
 void cb_free(struct pcmcia_socket *s)
 {
 	struct pci_dev *bridge = s->cb_dev;
 
-	cb_release_cis_mem(s);
-
 	if (bridge)
 		pci_remove_behind_bridge(bridge);
 }

drivers/pcmcia/cs_internal.h

@@ -87,37 +87,11 @@ struct pccard_resource_ops {
 #define SOCKET_CARDBUS		0x8000
 #define SOCKET_CARDBUS_CONFIG	0x10000
 
-static inline int cs_socket_get(struct pcmcia_socket *skt)
-{
-	int ret;
-
-	WARN_ON(skt->state & SOCKET_INUSE);
-
-	ret = try_module_get(skt->owner);
-	if (ret)
-		skt->state |= SOCKET_INUSE;
-	return ret;
-}
-
-static inline void cs_socket_put(struct pcmcia_socket *skt)
-{
-	if (skt->state & SOCKET_INUSE) {
-		skt->state &= ~SOCKET_INUSE;
-		module_put(skt->owner);
-	}
-}
-
 
 /*
  * Stuff internal to module "pcmcia_core":
  */
 
-/* cistpl.c */
-int verify_cis_cache(struct pcmcia_socket *s);
-
-/* rsrc_mgr.c */
-void release_resource_db(struct pcmcia_socket *s);
-
 /* socket_sysfs.c */
 extern int pccard_sysfs_add_socket(struct device *dev);
 extern void pccard_sysfs_remove_socket(struct device *dev);
@@ -125,8 +99,6 @@ extern void pccard_sysfs_remove_socket(struct device *dev);
 /* cardbus.c */
 int cb_alloc(struct pcmcia_socket *s);
 void cb_free(struct pcmcia_socket *s);
-int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
-		void *ptr);
 
 
 
@@ -138,7 +110,8 @@ struct pcmcia_callback{
 	struct module	*owner;
 	int		(*event) (struct pcmcia_socket *s,
 				  event_t event, int priority);
-	void		(*requery) (struct pcmcia_socket *s, int new_cis);
+	void		(*requery) (struct pcmcia_socket *s);
+	int		(*validate) (struct pcmcia_socket *s, unsigned int *i);
 	int		(*suspend) (struct pcmcia_socket *s);
 	int		(*resume) (struct pcmcia_socket *s);
 };
@@ -151,16 +124,35 @@ extern struct class pcmcia_socket_class;
 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
 struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr);
 
-int pcmcia_suspend_card(struct pcmcia_socket *skt);
-int pcmcia_resume_card(struct pcmcia_socket *skt);
-
-int pcmcia_eject_card(struct pcmcia_socket *skt);
-int pcmcia_insert_card(struct pcmcia_socket *skt);
+void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events);
+#define PCMCIA_UEVENT_EJECT	0x0001
+#define PCMCIA_UEVENT_INSERT	0x0002
+#define PCMCIA_UEVENT_SUSPEND	0x0004
+#define PCMCIA_UEVENT_RESUME	0x0008
+#define PCMCIA_UEVENT_REQUERY	0x0010
 
 struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
 void pcmcia_put_socket(struct pcmcia_socket *skt);
 
+/*
+ * Stuff internal to module "pcmcia".
+ */
+/* ds.c */
+extern struct bus_type pcmcia_bus_type;
+
+/* pcmcia_resource.c */
+extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
+extern int pcmcia_validate_mem(struct pcmcia_socket *s);
+extern struct resource *pcmcia_find_mem_region(u_long base,
+					       u_long num,
+					       u_long align,
+					       int low,
+					       struct pcmcia_socket *s);
+
+
 /* cistpl.c */
+extern struct bin_attribute pccard_cis_attr;
+
 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
 			u_int addr, u_int len, void *ptr);
 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
@@ -172,8 +164,8 @@ int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
 int pcmcia_replace_cis(struct pcmcia_socket *s,
 		       const u8 *data, const size_t len);
 int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count);
+int verify_cis_cache(struct pcmcia_socket *s);
 
-/* loop over CIS entries */
 int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
 		      cisdata_t code, cisparse_t *parse, void *priv_data,
 		      int (*loop_tuple) (tuple_t *tuple,
@@ -189,35 +181,8 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
 int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple);
 
 
-/* rsrc_mgr.c */
-int pcmcia_validate_mem(struct pcmcia_socket *s);
-struct resource *pcmcia_find_io_region(unsigned long base,
-				       int num,
-				       unsigned long align,
-				       struct pcmcia_socket *s);
-int pcmcia_adjust_io_region(struct resource *res,
-			    unsigned long r_start,
-			    unsigned long r_end,
-			    struct pcmcia_socket *s);
-struct resource *pcmcia_find_mem_region(u_long base,
-					u_long num,
-					u_long align,
-					int low,
-					struct pcmcia_socket *s);
-
-/*
- * Stuff internal to module "pcmcia".
- */
-/* ds.c */
-extern struct bus_type pcmcia_bus_type;
-
-/* pcmcia_resource.c */
-extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
-
 #ifdef CONFIG_PCMCIA_IOCTL
 /* ds.c */
-extern spinlock_t pcmcia_dev_list_lock;
-
 extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev);
 extern void pcmcia_put_dev(struct pcmcia_device *p_dev);
 

drivers/pcmcia/electra_cf.c

@@ -347,7 +347,7 @@ static int __devexit electra_cf_remove(struct of_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id electra_cf_match[] = {
+static const struct of_device_id electra_cf_match[] = {
 	{
 		.compatible   = "electra-cf",
 	},

drivers/pcmcia/i82365.h

@@ -77,8 +77,8 @@
 #define I365_VPP2_5V	0x04	/* Vpp2 = 5.0v */
 #define I365_VPP2_12V	0x08	/* Vpp2 = 12.0v */
 #define I365_VPP1_MASK	0x03	/* Mask for turning off Vpp1 */
-#define I365_VPP1_5V	0x01	/* Vpp2 = 5.0v */
-#define I365_VPP1_12V	0x02	/* Vpp2 = 12.0v */
+#define I365_VPP1_5V	0x01	/* Vpp1 = 5.0v */
+#define I365_VPP1_12V	0x02	/* Vpp1 = 12.0v */
 
 /* Flags for I365_INTCTL */
 #define I365_RING_ENA	0x80

drivers/pcmcia/m32r_cfc.c

@@ -764,7 +764,7 @@ static int __init init_m32r_pcc(void)
 	for (i = 0 ; i < pcc_sockets ; i++) {
 		socket[i].socket.dev.parent = &pcc_device.dev;
 		socket[i].socket.ops = &pcc_operations;
-		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+		socket[i].socket.resource_ops = &pccard_static_ops;
 		socket[i].socket.owner = THIS_MODULE;
 		socket[i].number = i;
 		ret = pcmcia_register_socket(&socket[i].socket);

drivers/pcmcia/m8xx_pcmcia.c

@@ -1233,7 +1233,7 @@ static int __init m8xx_probe(struct of_device *ofdev,
 		socket[i].socket.io_offset = 0;
 		socket[i].socket.pci_irq = pcmcia_schlvl;
 		socket[i].socket.ops = &m8xx_services;
-		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+		socket[i].socket.resource_ops = &pccard_iodyn_ops;
 		socket[i].socket.cb_dev = NULL;
 		socket[i].socket.dev.parent = &ofdev->dev;
 		socket[i].pcmcia = pcmcia;
@@ -1303,7 +1303,7 @@ static int m8xx_resume(struct platform_device *pdev)
 #define m8xx_resume NULL
 #endif
 
-static struct of_device_id m8xx_pcmcia_match[] = {
+static const struct of_device_id m8xx_pcmcia_match[] = {
 	{
 	 .type = "pcmcia",
 	 .compatible = "fsl,pq-pcmcia",

drivers/pcmcia/o2micro.h

@@ -116,13 +116,12 @@ static int o2micro_override(struct yenta_socket *socket)
 	 * from Eric Still, 02Micro.
 	 */
 	u8 a, b;
+	bool use_speedup;
 
 	if (PCI_FUNC(socket->dev->devfn) == 0) {
 		a = config_readb(socket, O2_RESERVED1);
 		b = config_readb(socket, O2_RESERVED2);
-
-		dev_printk(KERN_INFO, &socket->dev->dev,
-			   "O2: res at 0x94/0xD4: %02x/%02x\n", a, b);
+		dev_dbg(&socket->dev->dev, "O2: 0x94/0xD4: %02x/%02x\n", a, b);
 
 		switch (socket->dev->device) {
 		/*
@@ -135,23 +134,37 @@ static int o2micro_override(struct yenta_socket *socket)
 		case PCI_DEVICE_ID_O2_6812:
 		case PCI_DEVICE_ID_O2_6832:
 		case PCI_DEVICE_ID_O2_6836:
- 		case PCI_DEVICE_ID_O2_6933:
-			dev_printk(KERN_INFO, &socket->dev->dev,
-				   "Yenta O2: old bridge, disabling read "
-				   "prefetch/write burst\n");
-			config_writeb(socket, O2_RESERVED1,
-			              a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
-			config_writeb(socket, O2_RESERVED2,
-			              b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
+		case PCI_DEVICE_ID_O2_6933:
+			use_speedup = false;
 			break;
-
 		default:
-			dev_printk(KERN_INFO , &socket->dev->dev,
-				   "O2: enabling read prefetch/write burst\n");
+			use_speedup = true;
+			break;
+		}
+
+		/* the user may override our decision */
+		if (strcasecmp(o2_speedup, "on") == 0)
+			use_speedup = true;
+		else if (strcasecmp(o2_speedup, "off") == 0)
+			use_speedup = false;
+		else if (strcasecmp(o2_speedup, "default") != 0)
+			dev_warn(&socket->dev->dev,
+				"O2: Unknown parameter, using 'default'");
+
+		if (use_speedup) {
+			dev_info(&socket->dev->dev,
+				"O2: enabling read prefetch/write burst\n");
+			config_writeb(socket, O2_RESERVED1,
+				      a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+			config_writeb(socket, O2_RESERVED2,
+				      b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+		} else {
+			dev_info(&socket->dev->dev,
+				"O2: disabling read prefetch/write burst\n");
 			config_writeb(socket, O2_RESERVED1,
-			              a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+				      a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
 			config_writeb(socket, O2_RESERVED2,
-			              b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+				      b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
 		}
 	}
 

drivers/pcmcia/omap_cf.c

@@ -71,8 +71,6 @@ struct omap_cf_socket {
 
 #define	POLL_INTERVAL		(2 * HZ)
 
-#define	SZ_2K			(2 * SZ_1K)
-
 /*--------------------------------------------------------------------------*/
 
 static int omap_cf_ss_init(struct pcmcia_socket *s)

drivers/pcmcia/pcmcia_ioctl.c

@@ -62,16 +62,15 @@ static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s,
 						unsigned int function)
 {
 	struct pcmcia_device *p_dev = NULL;
-	unsigned long flags;
 
-	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+	mutex_lock(&s->ops_mutex);
 	list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
 		if (p_dev->func == function) {
-			spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+			mutex_unlock(&s->ops_mutex);
 			return pcmcia_get_dev(p_dev);
 		}
 	}
-	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+	mutex_unlock(&s->ops_mutex);
 	return NULL;
 }
 
@@ -169,7 +168,6 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
 {
 	struct pcmcia_socket *s;
 	int ret = -ENOSYS;
-	unsigned long flags;
 
 	down_read(&pcmcia_socket_list_rwsem);
 	list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
@@ -182,14 +180,13 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
 
 			/* you can't use the old interface if the new
 			 * one was used before */
-			spin_lock_irqsave(&s->lock, flags);
+			mutex_lock(&s->ops_mutex);
 			if ((s->resource_setup_new) &&
 			    !(s->resource_setup_old)) {
-				spin_unlock_irqrestore(&s->lock, flags);
+				mutex_unlock(&s->ops_mutex);
 				continue;
 			} else if (!(s->resource_setup_old))
 				s->resource_setup_old = 1;
-			spin_unlock_irqrestore(&s->lock, flags);
 
 			switch (adj->Resource) {
 			case RES_MEMORY_RANGE:
@@ -208,10 +205,9 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
 				 * last call to adjust_resource_info, we
 				 * always need to assume this is the latest
 				 * one... */
-				spin_lock_irqsave(&s->lock, flags);
 				s->resource_setup_done = 1;
-				spin_unlock_irqrestore(&s->lock, flags);
 			}
+			mutex_unlock(&s->ops_mutex);
 		}
 	}
 	up_read(&pcmcia_socket_list_rwsem);
@@ -470,7 +466,6 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
 	struct pcmcia_driver *p_drv;
 	struct pcmcia_device *p_dev;
 	int ret = 0;
-	unsigned long flags;
 
 	s = pcmcia_get_socket(s);
 	if (!s)
@@ -490,7 +485,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
 		goto err_put_driver;
 	}
 
-	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+	mutex_lock(&s->ops_mutex);
 	list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
 		if (p_dev->func == bind_info->function) {
 			if ((p_dev->dev.driver == &p_drv->drv)) {
@@ -499,7 +494,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
 					 * registered, and it was registered
 					 * by userspace before, we need to
 					 * return the "instance". */
-					spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+					mutex_unlock(&s->ops_mutex);
 					bind_info->instance = p_dev;
 					ret = -EBUSY;
 					goto err_put_module;
@@ -507,7 +502,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
 					/* the correct driver managed to bind
 					 * itself magically to the correct
 					 * device. */
-					spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+					mutex_unlock(&s->ops_mutex);
 					p_dev->cardmgr = p_drv;
 					ret = 0;
 					goto err_put_module;
@@ -516,12 +511,12 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
 				/* there's already a device available where
 				 * no device has been bound to yet. So we don't
 				 * need to register a device! */
-				spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+				mutex_unlock(&s->ops_mutex);
 				goto rescan;
 			}
 		}
 	}
-	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+	mutex_unlock(&s->ops_mutex);
 
 	p_dev = pcmcia_device_add(s, bind_info->function);
 	if (!p_dev) {
@@ -578,7 +573,6 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
 	dev_node_t *node;
 	struct pcmcia_device *p_dev;
 	struct pcmcia_driver *p_drv;
-	unsigned long flags;
 	int ret = 0;
 
 #ifdef CONFIG_CARDBUS
@@ -617,7 +611,7 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
 	}
 #endif
 
-	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+	mutex_lock(&s->ops_mutex);
 	list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
 		if (p_dev->func == bind_info->function) {
 			p_dev = pcmcia_get_dev(p_dev);
@@ -626,11 +620,11 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
 			goto found;
 		}
 	}
-	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+	mutex_unlock(&s->ops_mutex);
 	return -ENODEV;
 
  found:
-	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+	mutex_unlock(&s->ops_mutex);
 
 	p_drv = to_pcmcia_drv(p_dev->dev.driver);
 	if (p_drv && !p_dev->_locked) {
@@ -931,16 +925,16 @@ static int ds_ioctl(struct inode *inode, struct file *file,
 	ret = pccard_validate_cis(s, &buf->cisinfo.Chains);
 	break;
     case DS_SUSPEND_CARD:
-	ret = pcmcia_suspend_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
 	break;
     case DS_RESUME_CARD:
-	ret = pcmcia_resume_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
 	break;
     case DS_EJECT_CARD:
-	err = pcmcia_eject_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
 	break;
     case DS_INSERT_CARD:
-	err = pcmcia_insert_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
 	break;
     case DS_ACCESS_CONFIGURATION_REGISTER:
 	if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {

drivers/pcmcia/rsrc_mgr.c

@@ -21,60 +21,12 @@
 #include <pcmcia/cistpl.h>
 #include "cs_internal.h"
 
-
-int pcmcia_validate_mem(struct pcmcia_socket *s)
-{
-	if (s->resource_ops->validate_mem)
-		return s->resource_ops->validate_mem(s);
-	/* if there is no callback, we can assume that everything is OK */
-	return 0;
-}
-EXPORT_SYMBOL(pcmcia_validate_mem);
-
-int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start,
-		     unsigned long r_end, struct pcmcia_socket *s)
-{
-	if (s->resource_ops->adjust_io_region)
-		return s->resource_ops->adjust_io_region(res, r_start, r_end, s);
-	return -ENOMEM;
-}
-EXPORT_SYMBOL(pcmcia_adjust_io_region);
-
-struct resource *pcmcia_find_io_region(unsigned long base, int num,
-		   unsigned long align, struct pcmcia_socket *s)
-{
-	if (s->resource_ops->find_io)
-		return s->resource_ops->find_io(base, num, align, s);
-	return NULL;
-}
-EXPORT_SYMBOL(pcmcia_find_io_region);
-
-struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
-				 int low, struct pcmcia_socket *s)
-{
-	if (s->resource_ops->find_mem)
-		return s->resource_ops->find_mem(base, num, align, low, s);
-	return NULL;
-}
-EXPORT_SYMBOL(pcmcia_find_mem_region);
-
-void release_resource_db(struct pcmcia_socket *s)
-{
-	if (s->resource_ops->exit)
-		s->resource_ops->exit(s);
-}
-
-
 static int static_init(struct pcmcia_socket *s)
 {
-	unsigned long flags;
-
 	/* the good thing about SS_CAP_STATIC_MAP sockets is
 	 * that they don't need a resource database */
 
-	spin_lock_irqsave(&s->lock, flags);
 	s->resource_setup_done = 1;
-	spin_unlock_irqrestore(&s->lock, flags);
 
 	return 0;
 }

drivers/pcmcia/socket_sysfs.c

@@ -88,15 +88,14 @@ static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
 static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
 				   const char *buf, size_t count)
 {
-	ssize_t ret;
 	struct pcmcia_socket *s = to_socket(dev);
 
 	if (!count)
 		return -EINVAL;
 
-	ret = pcmcia_insert_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
 
-	return ret ? ret : count;
+	return count;
 }
 static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
 
@@ -113,18 +112,22 @@ static ssize_t pccard_store_card_pm_state(struct device *dev,
 					  struct device_attribute *attr,
 					  const char *buf, size_t count)
 {
-	ssize_t ret = -EINVAL;
 	struct pcmcia_socket *s = to_socket(dev);
+	ssize_t ret = count;
 
 	if (!count)
 		return -EINVAL;
 
-	if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
-		ret = pcmcia_suspend_card(s);
-	else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
-		ret = pcmcia_resume_card(s);
+	if (!strncmp(buf, "off", 3))
+		pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
+	else {
+		if (!strncmp(buf, "on", 2))
+			pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
+		else
+			ret = -EINVAL;
+	}
 
-	return ret ? -ENODEV : count;
+	return ret;
 }
 static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
 
@@ -132,15 +135,14 @@ static ssize_t pccard_store_eject(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
-	ssize_t ret;
 	struct pcmcia_socket *s = to_socket(dev);
 
 	if (!count)
 		return -EINVAL;
 
-	ret = pcmcia_eject_card(s);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
 
-	return ret ? ret : count;
+	return count;
 }
 static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
 
@@ -167,7 +169,9 @@ static ssize_t pccard_store_irq_mask(struct device *dev,
 	ret = sscanf(buf, "0x%x\n", &mask);
 
 	if (ret == 1) {
+		mutex_lock(&s->ops_mutex);
 		s->irq_mask &= mask;
+		mutex_unlock(&s->ops_mutex);
 		ret = 0;
 	}
 
@@ -187,163 +191,21 @@ static ssize_t pccard_store_resource(struct device *dev,
 				     struct device_attribute *attr,
 				     const char *buf, size_t count)
 {
-	unsigned long flags;
 	struct pcmcia_socket *s = to_socket(dev);
 
 	if (!count)
 		return -EINVAL;
 
-	spin_lock_irqsave(&s->lock, flags);
+	mutex_lock(&s->ops_mutex);
 	if (!s->resource_setup_done)
 		s->resource_setup_done = 1;
-	spin_unlock_irqrestore(&s->lock, flags);
-
-	mutex_lock(&s->skt_mutex);
-	if ((s->callback) &&
-	    (s->state & SOCKET_PRESENT) &&
-	    !(s->state & SOCKET_CARDBUS)) {
-		if (try_module_get(s->callback->owner)) {
-			s->callback->requery(s, 0);
-			module_put(s->callback->owner);
-		}
-	}
-	mutex_unlock(&s->skt_mutex);
-
-	return count;
-}
-static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
+	mutex_unlock(&s->ops_mutex);
 
-
-static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
-{
-	tuple_t tuple;
-	int status, i;
-	loff_t pointer = 0;
-	ssize_t ret = 0;
-	u_char *tuplebuffer;
-	u_char *tempbuffer;
-
-	tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
-	if (!tuplebuffer)
-		return -ENOMEM;
-
-	tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
-	if (!tempbuffer) {
-		ret = -ENOMEM;
-		goto free_tuple;
-	}
-
-	memset(&tuple, 0, sizeof(tuple_t));
-
-	tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
-	tuple.DesiredTuple = RETURN_FIRST_TUPLE;
-	tuple.TupleOffset = 0;
-
-	status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
-	while (!status) {
-		tuple.TupleData = tuplebuffer;
-		tuple.TupleDataMax = 255;
-		memset(tuplebuffer, 0, sizeof(u_char) * 255);
-
-		status = pccard_get_tuple_data(s, &tuple);
-		if (status)
-			break;
-
-		if (off < (pointer + 2 + tuple.TupleDataLen)) {
-			tempbuffer[0] = tuple.TupleCode & 0xff;
-			tempbuffer[1] = tuple.TupleLink & 0xff;
-			for (i = 0; i < tuple.TupleDataLen; i++)
-				tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
-
-			for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
-				if (((i + pointer) >= off) &&
-				    (i + pointer) < (off + count)) {
-					buf[ret] = tempbuffer[i];
-					ret++;
-				}
-			}
-		}
-
-		pointer += 2 + tuple.TupleDataLen;
-
-		if (pointer >= (off + count))
-			break;
-
-		if (tuple.TupleCode == CISTPL_END)
-			break;
-		status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
-	}
-
-	kfree(tempbuffer);
- free_tuple:
-	kfree(tuplebuffer);
-
-	return ret;
-}
-
-static ssize_t pccard_show_cis(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buf, loff_t off, size_t count)
-{
-	unsigned int size = 0x200;
-
-	if (off >= size)
-		count = 0;
-	else {
-		struct pcmcia_socket *s;
-		unsigned int chains;
-
-		if (off + count > size)
-			count = size - off;
-
-		s = to_socket(container_of(kobj, struct device, kobj));
-
-		if (!(s->state & SOCKET_PRESENT))
-			return -ENODEV;
-		if (pccard_validate_cis(s, &chains))
-			return -EIO;
-		if (!chains)
-			return -ENODATA;
-
-		count = pccard_extract_cis(s, buf, off, count);
-	}
-
-	return count;
-}
-
-static ssize_t pccard_store_cis(struct kobject *kobj,
-				struct bin_attribute *bin_attr,
-				char *buf, loff_t off, size_t count)
-{
-	struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
-	int error;
-
-	if (off)
-		return -EINVAL;
-
-	if (count >= CISTPL_MAX_CIS_SIZE)
-		return -EINVAL;
-
-	if (!(s->state & SOCKET_PRESENT))
-		return -ENODEV;
-
-	error = pcmcia_replace_cis(s, buf, count);
-	if (error)
-		return -EIO;
-
-	mutex_lock(&s->skt_mutex);
-	if ((s->callback) && (s->state & SOCKET_PRESENT) &&
-	    !(s->state & SOCKET_CARDBUS)) {
-		if (try_module_get(s->callback->owner)) {
-			s->callback->requery(s, 1);
-			module_put(s->callback->owner);
-		}
-	}
-	mutex_unlock(&s->skt_mutex);
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
 
 	return count;
 }
-
+static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
 
 static struct attribute *pccard_socket_attributes[] = {
 	&dev_attr_card_type.attr,
@@ -362,28 +224,12 @@ static const struct attribute_group socket_attrs = {
 	.attrs = pccard_socket_attributes,
 };
 
-static struct bin_attribute pccard_cis_attr = {
-	.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
-	.size = 0x200,
-	.read = pccard_show_cis,
-	.write = pccard_store_cis,
-};
-
 int pccard_sysfs_add_socket(struct device *dev)
 {
-	int ret = 0;
-
-	ret = sysfs_create_group(&dev->kobj, &socket_attrs);
-	if (!ret) {
-		ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
-		if (ret)
-			sysfs_remove_group(&dev->kobj, &socket_attrs);
-	}
-	return ret;
+	return sysfs_create_group(&dev->kobj, &socket_attrs);
 }
 
 void pccard_sysfs_remove_socket(struct device *dev)
 {
-	sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
 	sysfs_remove_group(&dev->kobj, &socket_attrs);
 }

drivers/pcmcia/yenta_socket.c

@@ -37,6 +37,11 @@ static int pwr_irqs_off;
 module_param(pwr_irqs_off, bool, 0644);
 MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
 
+static char o2_speedup[] = "default";
+module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444);
+MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' "
+	"or 'default' (uses recommended behaviour for the detected bridge)");
+
 #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
 
 /* Don't ask.. */

drivers/serial/serial_cs.c

@@ -696,11 +696,11 @@ static int serial_config(struct pcmcia_device * link)
 		info->multi = info->quirk->multi;
 
 	if (info->multi > 1)
-		multi_config(link);
+		i = multi_config(link);
 	else
-		simple_config(link);
+		i = simple_config(link);
 
-	if (info->ndev == 0)
+	if (i || info->ndev == 0)
 		goto failed;
 
 	/*
@@ -715,6 +715,7 @@ static int serial_config(struct pcmcia_device * link)
 	return 0;
 
 failed:
+	dev_warn(&link->dev, "serial_cs: failed to initialize\n");
 	serial_remove(link);
 	return -ENODEV;
 }

include/pcmcia/ds.h

@@ -40,7 +40,7 @@ struct net_device;
  * Documentation/pcmcia/driver.txt for details.
 */
 struct pcmcia_dynids {
-	spinlock_t		lock;
+	struct mutex		lock;
 	struct list_head	list;
 };
 

include/pcmcia/ss.h

@@ -134,9 +134,9 @@ struct pccard_operations {
 
 struct pcmcia_socket {
 	struct module			*owner;
-	spinlock_t			lock;
 	socket_state_t			socket;
 	u_int				state;
+	u_int				suspended_state;	/* state before suspend */
 	u_short				functions;
 	u_short				lock_count;
 	pccard_mem_map			cis_mem;
@@ -200,9 +200,14 @@ struct pcmcia_socket {
 	struct task_struct		*thread;
 	struct completion		thread_done;
 	unsigned int			thread_events;
-	/* protects socket h/w state */
+	unsigned int			sysfs_events;
+
+	/* For the non-trivial interaction between these locks,
+	 * see Documentation/pcmcia/locking.txt */
 	struct mutex			skt_mutex;
-	/* protects thread_events */
+	struct mutex			ops_mutex;
+
+	/* protects thread_events and sysfs_events */
 	spinlock_t			thread_lock;
 
 	/* pcmcia (16-bit) */
@@ -225,30 +230,19 @@ struct pcmcia_socket {
 		u8			busy:1;
 		/* pcmcia module is being unloaded */
 		u8			dead:1;
-		/* a multifunction-device add event is pending */
-		u8			device_add_pending:1;
-		/* the pending event adds a mfc (1) or pfc (0) */
-		u8			mfc_pfc:1;
+		/* the PCMCIA card consists of two pseudo devices */
+		u8			has_pfc:1;
 
-		u8			reserved:3;
+		u8			reserved:4;
 	} pcmcia_state;
 
 
-	/* for adding further pseudo-multifunction devices */
-	struct work_struct		device_add;
-
 #ifdef CONFIG_PCMCIA_IOCTL
 	struct user_info_t		*user;
 	wait_queue_head_t		queue;
 #endif /* CONFIG_PCMCIA_IOCTL */
 #endif /* CONFIG_PCMCIA */
 
-	/* cardbus (32-bit) */
-#ifdef CONFIG_CARDBUS
-	struct resource			*cb_cis_res;
-	void __iomem			*cb_cis_virt;
-#endif /* CONFIG_CARDBUS */
-
 	/* socket device */
 	struct device			dev;
 	/* data internal to the socket driver */
@@ -263,13 +257,25 @@ struct pcmcia_socket {
  * - pccard_static_ops		iomem and ioport areas are assigned statically
  * - pccard_iodyn_ops		iomem areas is assigned statically, ioport
  *				areas dynamically
+ *				If this option is selected, use
+ *				"select PCCARD_IODYN" in Kconfig.
  * - pccard_nonstatic_ops	iomem and ioport areas are assigned dynamically.
  *				If this option is selected, use
  *				"select PCCARD_NONSTATIC" in Kconfig.
+ *
  */
 extern struct pccard_resource_ops pccard_static_ops;
+#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
 extern struct pccard_resource_ops pccard_iodyn_ops;
 extern struct pccard_resource_ops pccard_nonstatic_ops;
+#else
+/* If PCMCIA is not used, but only CARDBUS, these functions are not used
+ * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module
+ */
+#define pccard_iodyn_ops pccard_static_ops
+#define pccard_nonstatic_ops pccard_static_ops
+#endif
+
 
 /* socket drivers are expected to use these callbacks in their .drv struct */
 extern int pcmcia_socket_dev_suspend(struct device *dev);