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dmaengine: idxd: Remove unused idxd_(un)register_bus_type

idxd_register_bus_type() and idxd_unregister_bus_type() have been unused
since 2021's
commit d9e5481fca74 ("dmaengine: dsa: move dsa_bus_type out of idxd driver
to standalone")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20241221141635.69412-1-linux@treblig.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

authored by

Dr. David Alan Gilbert and committed by
Vinod Koul 30821373 9d880452

-12
-2
drivers/dma/idxd/idxd.h
··· 725 725 &desc->txd, &status); 726 726 } 727 727 728 - int idxd_register_bus_type(void); 729 - void idxd_unregister_bus_type(void); 730 728 int idxd_register_devices(struct idxd_device *idxd); 731 729 void idxd_unregister_devices(struct idxd_device *idxd); 732 730 void idxd_wqs_quiesce(struct idxd_device *idxd);
-10
drivers/dma/idxd/sysfs.c
··· 1979 1979 device_unregister(group_confdev(group)); 1980 1980 } 1981 1981 } 1982 - 1983 - int idxd_register_bus_type(void) 1984 - { 1985 - return bus_register(&dsa_bus_type); 1986 - } 1987 - 1988 - void idxd_unregister_bus_type(void) 1989 - { 1990 - bus_unregister(&dsa_bus_type); 1991 - }