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mm: remove the BOUNCE config option

Commit eeadd68e2a5f ("block: remove bounce buffering support") remove
block/bounce.c but left the BOUNCE config option. Now this option has no
users, so remove it.

Link: https://lkml.kernel.org/r/20251013095620.1111061-1-chenhuacai@loongson.cn
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: John Garry <john.g.garry@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Huacai Chen and committed by
Andrew Morton
900fcf00 8cb290dd

-9
-9
mm/Kconfig
··· 695 695 config PHYS_ADDR_T_64BIT 696 696 def_bool 64BIT 697 697 698 - config BOUNCE 699 - bool "Enable bounce buffers" 700 - default y 701 - depends on BLOCK && MMU && HIGHMEM 702 - help 703 - Enable bounce buffers for devices that cannot access the full range of 704 - memory available to the CPU. Enabled by default when HIGHMEM is 705 - selected, but you may say n to override this. 706 - 707 698 config MMU_NOTIFIER 708 699 bool 709 700 select INTERVAL_TREE