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[MTD] fix m25p80 64-bit divisions
MTD has recently been upgraded for 64-bit support, see commit
number 69423d99fc
in the
mtd-2.6.git tree (git://git.infradead.org/mtd-2.6.git)
or see this URL:
http://git.infradead.org/mtd-2.6.git?a=commit;h=69423d99fc182a81f3c5db3eb5c140acc6fc64be
Some variables in MTD data structures which were 32-bit
became 64-bit. Namely, the 'size' field in 'struct mtd_info'
and the 'addr'/'len' fields in 'struct erase_info'. This
means we have to use 'do_div' to divide them.
This patch fixes the following linking error:
ERROR: "__umoddi3" [drivers/mtd/devices/m25p80.ko] undefined!
This patch changes divisions of 64-bit variable so that they use
'do_div'. This patch also change some print placeholders to
get rid of gcc warnings.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
parent
5b7f3a500c
commit
d85316ac45
1 changed files with 19 additions and 18 deletions
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@ -20,6 +20,7 @@
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/mutex.h>
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#include <linux/math64.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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@ -169,9 +170,9 @@ static int wait_till_ready(struct m25p *flash)
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*/
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static int erase_chip(struct m25p *flash)
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{
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DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB\n",
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DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %lldKiB\n",
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flash->spi->dev.bus_id, __func__,
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flash->mtd.size / 1024);
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(long long)(flash->mtd.size >> 10));
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/* Wait until finished previous write command. */
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if (wait_till_ready(flash))
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@ -232,18 +233,18 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
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{
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struct m25p *flash = mtd_to_m25p(mtd);
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u32 addr,len;
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uint32_t rem;
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DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
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DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%llx, len %lld\n",
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flash->spi->dev.bus_id, __func__, "at",
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(u32)instr->addr, instr->len);
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(long long)instr->addr, (long long)instr->len);
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/* sanity checks */
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if (instr->addr + instr->len > flash->mtd.size)
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return -EINVAL;
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if ((instr->addr % mtd->erasesize) != 0
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|| (instr->len % mtd->erasesize) != 0) {
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div_u64_rem(instr->len, mtd->erasesize, &rem);
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if (rem)
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return -EINVAL;
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}
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addr = instr->addr;
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len = instr->len;
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@ -677,24 +678,24 @@ static int __devinit m25p_probe(struct spi_device *spi)
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flash->mtd.erasesize = info->sector_size;
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}
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dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
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flash->mtd.size / 1024);
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dev_info(&spi->dev, "%s (%lld Kbytes)\n", info->name,
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(long long)flash->mtd.size >> 10);
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DEBUG(MTD_DEBUG_LEVEL2,
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"mtd .name = %s, .size = 0x%.8x (%uMiB) "
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"mtd .name = %s, .size = 0x%llx (%lldMiB) "
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".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
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flash->mtd.name,
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flash->mtd.size, flash->mtd.size / (1024*1024),
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(long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
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flash->mtd.erasesize, flash->mtd.erasesize / 1024,
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flash->mtd.numeraseregions);
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if (flash->mtd.numeraseregions)
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for (i = 0; i < flash->mtd.numeraseregions; i++)
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DEBUG(MTD_DEBUG_LEVEL2,
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"mtd.eraseregions[%d] = { .offset = 0x%.8x, "
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"mtd.eraseregions[%d] = { .offset = 0x%llx, "
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".erasesize = 0x%.8x (%uKiB), "
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".numblocks = %d }\n",
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i, flash->mtd.eraseregions[i].offset,
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i, (long long)flash->mtd.eraseregions[i].offset,
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flash->mtd.eraseregions[i].erasesize,
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flash->mtd.eraseregions[i].erasesize / 1024,
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flash->mtd.eraseregions[i].numblocks);
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@ -722,12 +723,12 @@ static int __devinit m25p_probe(struct spi_device *spi)
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if (nr_parts > 0) {
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for (i = 0; i < nr_parts; i++) {
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DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
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"{.name = %s, .offset = 0x%.8x, "
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".size = 0x%.8x (%uKiB) }\n",
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"{.name = %s, .offset = 0x%llx, "
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".size = 0x%llx (%lldKiB) }\n",
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i, parts[i].name,
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parts[i].offset,
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parts[i].size,
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parts[i].size / 1024);
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(long long)parts[i].offset,
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(long long)parts[i].size,
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(long long)(parts[i].size >> 10));
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}
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flash->partitioned = 1;
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return add_mtd_partitions(&flash->mtd, parts, nr_parts);
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