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[PATCH] pcmcia: access config_t using pointer instead of array
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Access the PCMCIA config_t struct (one per device function) using
a pointer in struct pcmcia_device, instead of looking them up in
an array.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Dominik Brodowski committed Mar 31, 2006
1 parent 1ae9c7d commit dbb22f0
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Showing 4 changed files with 12 additions and 16 deletions.
6 changes: 0 additions & 6 deletions drivers/pcmcia/cs_internal.h
Original file line number Diff line number Diff line change
Expand Up @@ -94,12 +94,6 @@ static inline void cs_socket_put(struct pcmcia_socket *skt)
}
}

#define CHECK_SOCKET(s) \
(((s) >= sockets) || (socket_table[s]->ops == NULL))

#define SOCKET(h) (h->socket)
#define CONFIG(h) (&SOCKET(h)->config[(h)->func])

/* In cardbus.c */
int cb_alloc(struct pcmcia_socket *s);
void cb_free(struct pcmcia_socket *s);
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1 change: 1 addition & 0 deletions drivers/pcmcia/ds.c
Original file line number Diff line number Diff line change
Expand Up @@ -399,6 +399,7 @@ static int pcmcia_device_probe(struct device * dev)
goto put_module;
}
}
p_dev->function_config = &s->config[p_dev->func];

ret = p_drv->probe(p_dev);
if (ret)
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19 changes: 9 additions & 10 deletions drivers/pcmcia/pcmcia_resource.c
Original file line number Diff line number Diff line change
Expand Up @@ -372,9 +372,7 @@ int pccard_get_status(struct pcmcia_socket *s, unsigned int function,

int pcmcia_get_status(client_handle_t handle, cs_status_t *status)
{
struct pcmcia_socket *s;
s = SOCKET(handle);
return pccard_get_status(s, handle->func, status);
return pccard_get_status(handle->socket, handle->func, status);
}
EXPORT_SYMBOL(pcmcia_get_status);

Expand Down Expand Up @@ -422,7 +420,8 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
config_t *c;

s = p_dev->socket;
c = CONFIG(p_dev);
c = p_dev->function_config;

if (!(s->state & SOCKET_PRESENT))
return CS_NO_CARD;
if (!(c->state & CONFIG_LOCKED))
Expand Down Expand Up @@ -470,7 +469,7 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev)
p_dev->state &= ~CLIENT_CONFIG_LOCKED;

if (!(p_dev->state & CLIENT_STALE)) {
config_t *c = CONFIG(p_dev);
config_t *c = p_dev->function_config;
if (--(s->lock_count) == 0) {
s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
s->socket.Vpp = 0;
Expand Down Expand Up @@ -512,7 +511,7 @@ int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
p_dev->state &= ~CLIENT_IO_REQ;

if (!(p_dev->state & CLIENT_STALE)) {
config_t *c = CONFIG(p_dev);
config_t *c = p_dev->function_config;
if (c->state & CONFIG_LOCKED)
return CS_CONFIGURATION_LOCKED;
if ((c->io.BasePort1 != req->BasePort1) ||
Expand Down Expand Up @@ -540,7 +539,7 @@ int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
p_dev->state &= ~CLIENT_IRQ_REQ;

if (!(p_dev->state & CLIENT_STALE)) {
config_t *c = CONFIG(p_dev);
config_t *c= p_dev->function_config;
if (c->state & CONFIG_LOCKED)
return CS_CONFIGURATION_LOCKED;
if (c->irq.Attributes != req->Attributes)
Expand Down Expand Up @@ -610,7 +609,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,

if (req->IntType & INT_CARDBUS)
return CS_UNSUPPORTED_MODE;
c = CONFIG(p_dev);
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED)
return CS_CONFIGURATION_LOCKED;

Expand Down Expand Up @@ -730,7 +729,7 @@ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)

if (!req)
return CS_UNSUPPORTED_MODE;
c = CONFIG(p_dev);
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED)
return CS_CONFIGURATION_LOCKED;
if (c->state & CONFIG_IO_REQ)
Expand Down Expand Up @@ -786,7 +785,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)

if (!(s->state & SOCKET_PRESENT))
return CS_NO_CARD;
c = CONFIG(p_dev);
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED)
return CS_CONFIGURATION_LOCKED;
if (c->state & CONFIG_IRQ_REQ)
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2 changes: 2 additions & 0 deletions include/pcmcia/ds.h
Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,7 @@ typedef struct dev_link_t {


struct pcmcia_socket;
struct config_t;

struct pcmcia_driver {
int (*probe) (struct pcmcia_device *dev);
Expand Down Expand Up @@ -160,6 +161,7 @@ struct pcmcia_device {
/* the hardware "function" device; certain subdevices can
* share one hardware "function" device. */
u8 func;
struct config_t* function_config;

struct list_head socket_device_list;

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