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[MTD] Use DIV_ROUND_UP

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The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Julia Lawall 2008-08-02 17:14:21 +02:00 committed by David Woodhouse
parent c4308d1076
commit c8872b069c
3 changed files with 3 additions and 4 deletions
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2
drivers/mtd/chips/cfi_cmdset_0001.c
View file

@ -1640,7 +1640,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
/* Figure out the number of words to write */
word_gap = (-adr & (map_bankwidth(map)-1));
words = (len - word_gap + map_bankwidth(map) - 1) / map_bankwidth(map);
words = DIV_ROUND_UP(len - word_gap, map_bankwidth(map));
if (!word_gap) {
words--;
} else {

2
drivers/mtd/chips/gen_probe.c
View file

@ -111,7 +111,7 @@ static struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chi
max_chips = 1;
}
mapsize = sizeof(long) * ( (max_chips + BITS_PER_LONG-1) / BITS_PER_LONG );
mapsize = sizeof(long) * DIV_ROUND_UP(max_chips, BITS_PER_LONG);
chip_map = kzalloc(mapsize, GFP_KERNEL);
if (!chip_map) {
printk(KERN_WARNING "%s: kmalloc failed for CFI chip map\n", map->name);

3
drivers/mtd/ssfdc.c
View file

@ -321,8 +321,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
DEBUG(MTD_DEBUG_LEVEL1,
"SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n",
ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len,
(ssfdc->map_len + MAX_PHYS_BLK_PER_ZONE - 1) /
MAX_PHYS_BLK_PER_ZONE);
DIV_ROUND_UP(ssfdc->map_len, MAX_PHYS_BLK_PER_ZONE));
/* Set geometry */
ssfdc->heads = 16;