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linux/kernel.h: move DIV_ROUND_DOWN_ULL() macro

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This macro is useful to avoid link error on 32-bit systems.

We have the same definition in two drivers, so move it to
include/linux/kernel.h

While we are here, refactor DIV_ROUND_UP_ULL() by using
DIV_ROUND_DOWN_ULL().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Mark Brown <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: David Woodhouse <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Masahiro Yamada 2017-09-08 16:13:45 -07:00 • committed by Linus Torvalds
commit 604df32236
3 changed files with 5 additions and 8 deletions
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3
drivers/mtd/nand/denali.c
View file

@ -980,9 +980,6 @@ static int denali_erase(struct mtd_info *mtd, int page)
return irq_status & INTR__ERASE_COMP ? 0 : NAND_STATUS_FAIL;
}
#define DIV_ROUND_DOWN_ULL(ll, d) \
({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
static int denali_setup_data_interface(struct mtd_info *mtd, int chipnr,
const struct nand_data_interface *conf)
{