[PATCH] pcmcia: reduce client_handle_t usage

Reduce the occurences of "client_handle_t" which is nothing else than a
pointer to struct pcmcia_device by now.
Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/pcmcia/ds.c

@@ -158,17 +158,15 @@ static const lookup_t service_table[] = {
 };
 
 
-static int pcmcia_report_error(client_handle_t handle, error_info_t *err)
+static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err)
 {
 	int i;
 	char *serv;
 
-	if (!handle)
+	if (!p_dev)
 		printk(KERN_NOTICE);
-	else {
-		struct pcmcia_device *p_dev = handle_to_pdev(handle);
+	else
 		printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id);
-	}
 
 	for (i = 0; i < ARRAY_SIZE(service_table); i++)
 		if (service_table[i].key == err->func)
@@ -193,10 +191,10 @@ static int pcmcia_report_error(client_handle_t handle, error_info_t *err)
 
 /*======================================================================*/
 
-void cs_error(client_handle_t handle, int func, int ret)
+void cs_error(struct pcmcia_device *p_dev, int func, int ret)
 {
 	error_info_t err = { func, ret };
-	pcmcia_report_error(handle, &err);
+	pcmcia_report_error(p_dev, &err);
 }
 EXPORT_SYMBOL(cs_error);
 
@@ -574,8 +572,6 @@ static int pcmcia_card_add(struct pcmcia_socket *s)
 	else
 		no_funcs = 1;
 
-	/* this doesn't handle multifunction devices on one pcmcia function
-	 * yet. */
 	for (i=0; i < no_funcs; i++)
 		pcmcia_device_add(s, i);
 
@@ -994,9 +990,8 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
 
 
 
-int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
+int pcmcia_register_client(struct pcmcia_device **handle, client_reg_t *req)
 {
-	struct pcmcia_device *client = NULL;
 	struct pcmcia_socket *s = NULL;
 	struct pcmcia_device *p_dev = NULL;
 	struct pcmcia_driver *p_drv = NULL;
@@ -1024,7 +1019,6 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
 			}
 			p_drv = to_pcmcia_drv(p_dev->dev.driver);
 			if (!strncmp(p_drv->drv.name, (char *)req->dev_info, DEV_NAME_LEN)) {
-				client = p_dev;
 				spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
 				goto found;
 			}
@@ -1035,7 +1029,7 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
 	}
  found:
 	up_read(&pcmcia_socket_list_rwsem);
-	if (!p_dev || !client)
+	if (!p_dev)
 		return -ENODEV;
 
 	pcmcia_put_socket(s); /* safe, as we already hold a reference from bind_device */
@@ -1046,12 +1040,9 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
 	p_dev->event_callback_args.client_handle = p_dev;
 
 
-	if (s->state & SOCKET_CARDBUS)
-		client->state |= CLIENT_CARDBUS;
-
-	if ((!(s->state & SOCKET_CARDBUS)) && (s->functions == 0)) {
+	if (!s->functions) {
 		cistpl_longlink_mfc_t mfc;
-		if (pccard_read_tuple(s, client->func, CISTPL_LONGLINK_MFC, &mfc)
+		if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC, &mfc)
 		    == CS_SUCCESS)
 			s->functions = mfc.nfn;
 		else
@@ -1064,7 +1055,7 @@ int pcmcia_register_client(client_handle_t *handle, client_reg_t *req)
 	}
 
 	ds_dbg(1, "register_client(): client 0x%p, dev %s\n",
-	       client, p_dev->dev.bus_id);
+	       p_dev, p_dev->dev.bus_id);
 
 	if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT) {
 		if (p_drv->event)
@@ -1112,26 +1103,25 @@ static int unbind_request(struct pcmcia_socket *s)
 	return 0;
 } /* unbind_request */
 
-int pcmcia_deregister_client(client_handle_t handle)
+int pcmcia_deregister_client(struct pcmcia_device *p_dev)
 {
 	struct pcmcia_socket *s;
 	int i;
-	struct pcmcia_device *p_dev = handle_to_pdev(handle);
 
-	s = SOCKET(handle);
-	ds_dbg(1, "deregister_client(%p)\n", handle);
+	s = p_dev->socket;
+	ds_dbg(1, "deregister_client(%p)\n", p_dev);
 
-	if (handle->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
+	if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
 		goto warn_out;
 	for (i = 0; i < MAX_WIN; i++)
-		if (handle->state & CLIENT_WIN_REQ(i))
+		if (p_dev->state & CLIENT_WIN_REQ(i))
 			goto warn_out;
 
-	if (handle->state & CLIENT_STALE) {
-		handle->state &= ~CLIENT_STALE;
+	if (p_dev->state & CLIENT_STALE) {
+		p_dev->state &= ~CLIENT_STALE;
 		pcmcia_put_dev(p_dev);
 	} else {
-		handle->state = CLIENT_UNBOUND;
+		p_dev->state = CLIENT_UNBOUND;
 	}
 
 	return CS_SUCCESS;

drivers/pcmcia/pcmcia_compat.c

@@ -28,53 +28,39 @@
 
 #include "cs_internal.h"
 
-int pcmcia_get_first_tuple(client_handle_t handle, tuple_t *tuple)
+int pcmcia_get_first_tuple(struct pcmcia_device *p_dev, tuple_t *tuple)
 {
-	struct pcmcia_socket *s;
-	s = SOCKET(handle);
-	return pccard_get_first_tuple(s, handle->func, tuple);
+	return pccard_get_first_tuple(p_dev->socket, p_dev->func, tuple);
 }
 EXPORT_SYMBOL(pcmcia_get_first_tuple);
 
-int pcmcia_get_next_tuple(client_handle_t handle, tuple_t *tuple)
+int pcmcia_get_next_tuple(struct pcmcia_device *p_dev, tuple_t *tuple)
 {
-	struct pcmcia_socket *s;
-	s = SOCKET(handle);
-	return pccard_get_next_tuple(s, handle->func, tuple);
+	return pccard_get_next_tuple(p_dev->socket, p_dev->func, tuple);
 }
 EXPORT_SYMBOL(pcmcia_get_next_tuple);
 
-int pcmcia_get_tuple_data(client_handle_t handle, tuple_t *tuple)
+int pcmcia_get_tuple_data(struct pcmcia_device *p_dev, tuple_t *tuple)
 {
-	struct pcmcia_socket *s;
-	s = SOCKET(handle);
-	return pccard_get_tuple_data(s, tuple);
+	return pccard_get_tuple_data(p_dev->socket, tuple);
 }
 EXPORT_SYMBOL(pcmcia_get_tuple_data);
 
-int pcmcia_parse_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+int pcmcia_parse_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, cisparse_t *parse)
 {
 	return pccard_parse_tuple(tuple, parse);
 }
 EXPORT_SYMBOL(pcmcia_parse_tuple);
 
-int pcmcia_validate_cis(client_handle_t handle, cisinfo_t *info)
+int pcmcia_validate_cis(struct pcmcia_device *p_dev, cisinfo_t *info)
 {
-	struct pcmcia_socket *s;
-	s = SOCKET(handle);
-	return pccard_validate_cis(s, handle->func, info);
+	return pccard_validate_cis(p_dev->socket, p_dev->func, info);
 }
 EXPORT_SYMBOL(pcmcia_validate_cis);
 
 
-int pcmcia_reset_card(client_handle_t handle, client_req_t *req)
+int pcmcia_reset_card(struct pcmcia_device *p_dev, client_req_t *req)
 {
-	struct pcmcia_socket *skt;
-
-	skt = SOCKET(handle);
-	if (!skt)
-		return CS_BAD_HANDLE;
-
-	return pccard_reset_card(skt);
+	return pccard_reset_card(p_dev->socket);
 }
 EXPORT_SYMBOL(pcmcia_reset_card);

drivers/pcmcia/pcmcia_resource.c

@@ -202,12 +202,11 @@ int pccard_access_configuration_register(struct pcmcia_socket *s,
 	return CS_SUCCESS;
 } /* pccard_access_configuration_register */
 
-int pcmcia_access_configuration_register(client_handle_t handle,
+int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
 					 conf_reg_t *reg)
 {
-	struct pcmcia_socket *s;
-	s = SOCKET(handle);
-	return pccard_access_configuration_register(s, handle->func, reg);
+	return pccard_access_configuration_register(p_dev->socket,
+						    p_dev->func, reg);
 }
 EXPORT_SYMBOL(pcmcia_access_configuration_register);
 
@@ -269,17 +268,11 @@ int pccard_get_configuration_info(struct pcmcia_socket *s,
 	return CS_SUCCESS;
 } /* pccard_get_configuration_info */
 
-int pcmcia_get_configuration_info(client_handle_t handle,
+int pcmcia_get_configuration_info(struct pcmcia_device *p_dev,
 				  config_info_t *config)
 {
-	struct pcmcia_socket *s;
-
-	if (!config)
-		return CS_BAD_HANDLE;
-	s = SOCKET(handle);
-	if (!s)
-		return CS_BAD_HANDLE;
-	return pccard_get_configuration_info(s, handle->func, config);
+	return pccard_get_configuration_info(p_dev->socket, p_dev->func,
+					     config);
 }
 EXPORT_SYMBOL(pcmcia_get_configuration_info);
 
@@ -422,14 +415,14 @@ EXPORT_SYMBOL(pcmcia_map_mem_page);
  *
  * Modify a locked socket configuration
  */
-int pcmcia_modify_configuration(client_handle_t handle,
+int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
 				modconf_t *mod)
 {
 	struct pcmcia_socket *s;
 	config_t *c;
 
-	s = SOCKET(handle);
-	c = CONFIG(handle);
+	s = p_dev->socket;
+	c = CONFIG(p_dev);
 	if (!(s->state & SOCKET_PRESENT))
 		return CS_NO_CARD;
 	if (!(c->state & CONFIG_LOCKED))
@@ -466,24 +459,18 @@ int pcmcia_modify_configuration(client_handle_t handle,
 EXPORT_SYMBOL(pcmcia_modify_configuration);
 
 
-int pcmcia_release_configuration(client_handle_t handle)
+int pcmcia_release_configuration(struct pcmcia_device *p_dev)
 {
 	pccard_io_map io = { 0, 0, 0, 0, 1 };
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = p_dev->socket;
 	int i;
 
-	if (!(handle->state & CLIENT_CONFIG_LOCKED))
+	if (!(p_dev->state & CLIENT_CONFIG_LOCKED))
 		return CS_BAD_HANDLE;
-	handle->state &= ~CLIENT_CONFIG_LOCKED;
-	s = SOCKET(handle);
+	p_dev->state &= ~CLIENT_CONFIG_LOCKED;
 
-#ifdef CONFIG_CARDBUS
-	if (handle->state & CLIENT_CARDBUS)
-		return CS_SUCCESS;
-#endif
-
-	if (!(handle->state & CLIENT_STALE)) {
-		config_t *c = CONFIG(handle);
+	if (!(p_dev->state & CLIENT_STALE)) {
+		config_t *c = CONFIG(p_dev);
 		if (--(s->lock_count) == 0) {
 			s->socket.flags = SS_OUTPUT_ENA;   /* Is this correct? */
 			s->socket.Vpp = 0;
@@ -516,22 +503,16 @@ EXPORT_SYMBOL(pcmcia_release_configuration);
  * don't bother checking the port ranges against the current socket
  * values.
  */
-int pcmcia_release_io(client_handle_t handle, io_req_t *req)
+int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
 {
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = p_dev->socket;
 
-	if (!(handle->state & CLIENT_IO_REQ))
+	if (!(p_dev->state & CLIENT_IO_REQ))
 		return CS_BAD_HANDLE;
-	handle->state &= ~CLIENT_IO_REQ;
-	s = SOCKET(handle);
-
-#ifdef CONFIG_CARDBUS
-	if (handle->state & CLIENT_CARDBUS)
-		return CS_SUCCESS;
-#endif
+	p_dev->state &= ~CLIENT_IO_REQ;
 
-	if (!(handle->state & CLIENT_STALE)) {
-		config_t *c = CONFIG(handle);
+	if (!(p_dev->state & CLIENT_STALE)) {
+		config_t *c = CONFIG(p_dev);
 		if (c->state & CONFIG_LOCKED)
 			return CS_CONFIGURATION_LOCKED;
 		if ((c->io.BasePort1 != req->BasePort1) ||
@@ -551,16 +532,15 @@ int pcmcia_release_io(client_handle_t handle, io_req_t *req)
 EXPORT_SYMBOL(pcmcia_release_io);
 
 
-int pcmcia_release_irq(client_handle_t handle, irq_req_t *req)
+int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 {
-	struct pcmcia_socket *s;
-	if (!(handle->state & CLIENT_IRQ_REQ))
+	struct pcmcia_socket *s = p_dev->socket;
+	if (!(p_dev->state & CLIENT_IRQ_REQ))
 		return CS_BAD_HANDLE;
-	handle->state &= ~CLIENT_IRQ_REQ;
-	s = SOCKET(handle);
+	p_dev->state &= ~CLIENT_IRQ_REQ;
 
-	if (!(handle->state & CLIENT_STALE)) {
-		config_t *c = CONFIG(handle);
+	if (!(p_dev->state & CLIENT_STALE)) {
+		config_t *c = CONFIG(p_dev);
 		if (c->state & CONFIG_LOCKED)
 			return CS_CONFIGURATION_LOCKED;
 		if (c->irq.Attributes != req->Attributes)
@@ -616,27 +596,21 @@ int pcmcia_release_window(window_handle_t win)
 EXPORT_SYMBOL(pcmcia_release_window);
 
 
-int pcmcia_request_configuration(client_handle_t handle,
+int pcmcia_request_configuration(struct pcmcia_device *p_dev,
 				 config_req_t *req)
 {
 	int i;
 	u_int base;
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = p_dev->socket;
 	config_t *c;
 	pccard_io_map iomap;
 
-	s = SOCKET(handle);
 	if (!(s->state & SOCKET_PRESENT))
 		return CS_NO_CARD;
 
-#ifdef CONFIG_CARDBUS
-	if (handle->state & CLIENT_CARDBUS)
-		return CS_UNSUPPORTED_MODE;
-#endif
-
 	if (req->IntType & INT_CARDBUS)
 		return CS_UNSUPPORTED_MODE;
-	c = CONFIG(handle);
+	c = CONFIG(p_dev);
 	if (c->state & CONFIG_LOCKED)
 		return CS_CONFIGURATION_LOCKED;
 
@@ -737,7 +711,7 @@ int pcmcia_request_configuration(client_handle_t handle,
 	}
 
 	c->state |= CONFIG_LOCKED;
-	handle->state |= CLIENT_CONFIG_LOCKED;
+	p_dev->state |= CLIENT_CONFIG_LOCKED;
 	return CS_SUCCESS;
 } /* pcmcia_request_configuration */
 EXPORT_SYMBOL(pcmcia_request_configuration);
@@ -748,27 +722,17 @@ EXPORT_SYMBOL(pcmcia_request_configuration);
  * Request_io() reserves ranges of port addresses for a socket.
  * I have not implemented range sharing or alias addressing.
  */
-int pcmcia_request_io(client_handle_t handle, io_req_t *req)
+int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
 {
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = p_dev->socket;
 	config_t *c;
 
-	s = SOCKET(handle);
 	if (!(s->state & SOCKET_PRESENT))
 		return CS_NO_CARD;
 
-	if (handle->state & CLIENT_CARDBUS) {
-#ifdef CONFIG_CARDBUS
-		handle->state |= CLIENT_IO_REQ;
-		return CS_SUCCESS;
-#else
-		return CS_UNSUPPORTED_FUNCTION;
-#endif
-	}
-
 	if (!req)
 		return CS_UNSUPPORTED_MODE;
-	c = CONFIG(handle);
+	c = CONFIG(p_dev);
 	if (c->state & CONFIG_LOCKED)
 		return CS_CONFIGURATION_LOCKED;
 	if (c->state & CONFIG_IO_REQ)
@@ -793,7 +757,7 @@ int pcmcia_request_io(client_handle_t handle, io_req_t *req)
 
 	c->io = *req;
 	c->state |= CONFIG_IO_REQ;
-	handle->state |= CLIENT_IO_REQ;
+	p_dev->state |= CLIENT_IO_REQ;
 	return CS_SUCCESS;
 } /* pcmcia_request_io */
 EXPORT_SYMBOL(pcmcia_request_io);
@@ -816,17 +780,15 @@ static irqreturn_t test_action(int cpl, void *dev_id, struct pt_regs *regs)
 }
 #endif
 
-int pcmcia_request_irq(client_handle_t handle, irq_req_t *req)
+int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
 {
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = p_dev->socket;
 	config_t *c;
 	int ret = CS_IN_USE, irq = 0;
-	struct pcmcia_device *p_dev = handle_to_pdev(handle);
 
-	s = SOCKET(handle);
 	if (!(s->state & SOCKET_PRESENT))
 		return CS_NO_CARD;
-	c = CONFIG(handle);
+	c = CONFIG(p_dev);
 	if (c->state & CONFIG_LOCKED)
 		return CS_CONFIGURATION_LOCKED;
 	if (c->state & CONFIG_IRQ_REQ)
@@ -890,7 +852,7 @@ int pcmcia_request_irq(client_handle_t handle, irq_req_t *req)
 	s->irq.Config++;
 
 	c->state |= CONFIG_IRQ_REQ;
-	handle->state |= CLIENT_IRQ_REQ;
+	p_dev->state |= CLIENT_IRQ_REQ;
 
 #ifdef CONFIG_PCMCIA_PROBE
 	pcmcia_used_irq[irq]++;
@@ -906,14 +868,13 @@ EXPORT_SYMBOL(pcmcia_request_irq);
  * Request_window() establishes a mapping between card memory space
  * and system memory space.
  */
-int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle_t *wh)
+int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh)
 {
-	struct pcmcia_socket *s;
+	struct pcmcia_socket *s = (*p_dev)->socket;
 	window_t *win;
 	u_long align;
 	int w;
 
-	s = (*handle)->socket;
 	if (!(s->state & SOCKET_PRESENT))
 		return CS_NO_CARD;
 	if (req->Attributes & (WIN_PAGED | WIN_SHARED))
@@ -942,7 +903,7 @@ int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle
 	win = &s->win[w];
 	win->magic = WINDOW_MAGIC;
 	win->index = w;
-	win->handle = *handle;
+	win->handle = *p_dev;
 	win->sock = s;
 
 	if (!(s->features & SS_CAP_STATIC_MAP)) {
@@ -951,7 +912,7 @@ int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle
 		if (!win->ctl.res)
 			return CS_IN_USE;
 	}
-	(*handle)->state |= CLIENT_WIN_REQ(w);
+	(*p_dev)->state |= CLIENT_WIN_REQ(w);
 
 	/* Configure the socket controller */
 	win->ctl.map = w+1;

include/pcmcia/cs.h

@@ -77,11 +77,7 @@ typedef struct servinfo_t {
 } servinfo_t;
 
 typedef struct event_callback_args_t {
-    client_handle_t client_handle;
-    void	*info;
-    void	*mtdrequest;
-    void	*buffer;
-    void	*misc;
+	struct pcmcia_device	*client_handle;
 	void			*client_data;
 } event_callback_args_t;
 
@@ -393,25 +389,25 @@ enum service {
 
 struct pcmcia_socket;
 
-int pcmcia_access_configuration_register(client_handle_t handle, conf_reg_t *reg);
-int pcmcia_deregister_client(client_handle_t handle);
-int pcmcia_get_configuration_info(client_handle_t handle, config_info_t *config);
+int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, conf_reg_t *reg);
+int pcmcia_deregister_client(struct pcmcia_device *p_dev);
+int pcmcia_get_configuration_info(struct pcmcia_device *p_dev, config_info_t *config);
 int pcmcia_get_first_window(window_handle_t *win, win_req_t *req);
 int pcmcia_get_next_window(window_handle_t *win, win_req_t *req);
-int pcmcia_get_status(client_handle_t handle, cs_status_t *status);
+int pcmcia_get_status(struct pcmcia_device *p_dev, cs_status_t *status);
 int pcmcia_get_mem_page(window_handle_t win, memreq_t *req);
 int pcmcia_map_mem_page(window_handle_t win, memreq_t *req);
-int pcmcia_modify_configuration(client_handle_t handle, modconf_t *mod);
+int pcmcia_modify_configuration(struct pcmcia_device *p_dev, modconf_t *mod);
 int pcmcia_register_client(client_handle_t *handle, client_reg_t *req);
-int pcmcia_release_configuration(client_handle_t handle);
-int pcmcia_release_io(client_handle_t handle, io_req_t *req);
-int pcmcia_release_irq(client_handle_t handle, irq_req_t *req);
+int pcmcia_release_configuration(struct pcmcia_device *p_dev);
+int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req);
+int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req);
 int pcmcia_release_window(window_handle_t win);
-int pcmcia_request_configuration(client_handle_t handle, config_req_t *req);
-int pcmcia_request_io(client_handle_t handle, io_req_t *req);
-int pcmcia_request_irq(client_handle_t handle, irq_req_t *req);
-int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle_t *wh);
-int pcmcia_reset_card(client_handle_t handle, client_req_t *req);
+int pcmcia_request_configuration(struct pcmcia_device *p_dev, config_req_t *req);
+int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);
+int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req);
+int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh);
+int pcmcia_reset_card(struct pcmcia_device *p_dev, client_req_t *req);
 int pcmcia_suspend_card(struct pcmcia_socket *skt);
 int pcmcia_resume_card(struct pcmcia_socket *skt);
 int pcmcia_eject_card(struct pcmcia_socket *skt);