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pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function

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This function was created as a deprecated fallback case back in 2010 by
commit eb14120f74 ("pcmcia: re-work pcmcia_request_irq()") for legacy
cases.

Actual in-kernel users haven't been around for a long while.  The last
in-kernel user was apparently removed four years ago by commit
5f5316fcd0 ("am2150: Update nmclan_cs.c to use update PCMCIA API").

Just remove it entirely.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2018-08-18 12:30:42 -07:00
parent 771c035372
commit 307797159a
3 changed files with 0 additions and 49 deletions
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3
Documentation/pcmcia/driver-changes.txt
View File

@ -46,9 +46,6 @@ This file details changes in 2.6 which affect PCMCIA card driver authors:
- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
clean up automatically on calls to pcmcia_disable_device() or
device ejection.
- drivers still not capable of IRQF_SHARED (or not telling us so) may
use the deprecated pcmcia_request_exclusive_irq() for the time
being; they might receive a shared IRQ nonetheless.
* no cs_error / CS_CHECK / CONFIG_PCMCIA_DEBUG (as of 2.6.33)
Instead of the cs_error() callback or the CS_CHECK() macro, please use

36
drivers/pcmcia/pcmcia_resource.c
View File

@ -712,42 +712,6 @@ int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
EXPORT_SYMBOL(pcmcia_request_irq);
/**
* pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first
* @p_dev: the associated PCMCIA device
* @handler: IRQ handler to register
*
* pcmcia_request_exclusive_irq() is a wrapper around request_irq() which
* attempts first to request an exclusive IRQ. If it fails, it also accepts
* a shared IRQ, but prints out a warning. PCMCIA drivers should allow for
* IRQ sharing and either use request_irq directly (then they need to call
* free_irq() themselves, too), or the pcmcia_request_irq() function.
*/
int __must_check
__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler)
{
int ret;
if (!p_dev->irq)
return -EINVAL;
ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv);
if (ret) {
ret = pcmcia_request_irq(p_dev, handler);
dev_warn(&p_dev->dev, "pcmcia: request for exclusive IRQ could not be fulfilled\n");
dev_warn(&p_dev->dev, "pcmcia: the driver needs updating to supported shared IRQ lines\n");
}
if (ret)
dev_info(&p_dev->dev, "request_irq() failed\n");
else
p_dev->_irq = 1;
return ret;
} /* pcmcia_request_exclusive_irq */
EXPORT_SYMBOL(__pcmcia_request_exclusive_irq);
#ifdef CONFIG_PCMCIA_PROBE
/* mask of IRQs already reserved by other cards, we should avoid using them */

10
include/pcmcia/ds.h
View File

@ -206,16 +206,6 @@ int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);
/* device configuration */
int pcmcia_request_io(struct pcmcia_device *p_dev);
int __must_check
__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);
static inline __must_check __deprecated int
pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
irq_handler_t handler)
{
return __pcmcia_request_exclusive_irq(p_dev, handler);
}
int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
irq_handler_t handler);