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[EISA] EISA registration with !CONFIG_EISA

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This is a change for the EISA bus support to permit drivers to call
un/registration functions even if EISA support has not been enabled.  This is
similar to what PCI (and now TC) does and reduces the need for #ifdef clutter.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Maciej W. Rozycki 2007-02-05 16:28:26 -08:00 committed by Ralf Baechle
parent 9084b0058e
commit f85da08415
1 changed files with 10 additions and 0 deletions
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10
include/linux/eisa.h
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@ -61,10 +61,20 @@ struct eisa_driver {
#define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver) #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver)
/* These external functions are only available when EISA support is enabled. */
#ifdef CONFIG_EISA
extern struct bus_type eisa_bus_type; extern struct bus_type eisa_bus_type;
int eisa_driver_register (struct eisa_driver *edrv); int eisa_driver_register (struct eisa_driver *edrv);
void eisa_driver_unregister (struct eisa_driver *edrv); void eisa_driver_unregister (struct eisa_driver *edrv);
#else /* !CONFIG_EISA */
static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; }
static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
#endif /* !CONFIG_EISA */
/* Mimics pci.h... */ /* Mimics pci.h... */
static inline void *eisa_get_drvdata (struct eisa_device *edev) static inline void *eisa_get_drvdata (struct eisa_device *edev)
{ {