blackfin: use bitmap library functions

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The bitmap library provides more efficient functions than accessing
individual bits with bitops.

This uses bitmap_find_next_zero_area() to find a continuing zero area,
and uses bitmap_set()/bitmap_clear() to set/clear specified bit area.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: uclinux-dist-devel@blackfin.uclinux.org
Signed-off-by: Bob Liu <lliubbo@gmail.com>

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Akinobu Mita 2012-11-25 16:48:23 +09:00 • committed by Bob Liu

parent c428f8eb2f

commit c73bc7026d

1 changed files with 7 additions and 16 deletions

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23

arch/blackfin/kernel/dma-mapping.c

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