3 files changed, 38 insertions, 33 deletions

diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index f4bda4cee49..578de1c67bf 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -619,7 +619,7 @@ static struct mtd_partition lart_partitions[] = {
 };
 #endif
 
-int __init lart_flash_init (void)
+static int __init lart_flash_init (void)
 {
    int result;
    memset (&mtd,0,sizeof (mtd));
@@ -690,7 +690,7 @@ int __init lart_flash_init (void)
    return (result);
 }
 
-void __exit lart_flash_exit (void)
+static void __exit lart_flash_exit (void)
 {
 #ifndef HAVE_PARTITIONS
    del_mtd_device (&mtd);
@@ -705,5 +705,3 @@ module_exit (lart_flash_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Abraham vd Merwe <abraham@2d3d.co.za>");
 MODULE_DESCRIPTION("MTD driver for Intel 28F160F3 on LART board");
-
-
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 5733f064384..7c3fc766dcf 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -20,6 +20,7 @@
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
+#include <linux/math64.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
@@ -169,9 +170,9 @@ static int wait_till_ready(struct m25p *flash)
  */
 static int erase_chip(struct m25p *flash)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB\n",
-                        dev_name(&flash->spi->dev), __func__,
-                        flash->mtd.size / 1024);
+        DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %lldKiB\n",
+              dev_name(&flash->spi->dev), __func__,
+              (long long)(flash->mtd.size >> 10));
 
         /* Wait until finished previous write command. */
         if (wait_till_ready(flash))
@@ -232,18 +233,18 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
         struct m25p *flash = mtd_to_m25p(mtd);
         u32 addr,len;
+        uint32_t rem;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
-                        dev_name(&flash->spi->dev), __func__, "at",
-                        (u32)instr->addr, instr->len);
+        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%llx, len %lld\n",
+              dev_name(&flash->spi->dev), __func__, "at",
+              (long long)instr->addr, (long long)instr->len);
 
         /* sanity checks */
         if (instr->addr + instr->len > flash->mtd.size)
                 return -EINVAL;
-        if ((instr->addr % mtd->erasesize) != 0
-                        || (instr->len % mtd->erasesize) != 0) {
+        div_u64_rem(instr->len, mtd->erasesize, &rem);
+        if (rem)
                 return -EINVAL;
-        }
 
         addr = instr->addr;
         len = instr->len;
@@ -677,24 +678,24 @@ static int __devinit m25p_probe(struct spi_device *spi)
                 flash->mtd.erasesize = info->sector_size;
         }
 
-        dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
-                        flash->mtd.size / 1024);
+        dev_info(&spi->dev, "%s (%lld Kbytes)\n", info->name,
+                        (long long)flash->mtd.size >> 10);
 
         DEBUG(MTD_DEBUG_LEVEL2,
-                "mtd .name = %s, .size = 0x%.8x (%uMiB) "
+                "mtd .name = %s, .size = 0x%llx (%lldMiB) "
                         ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
                 flash->mtd.name,
-                flash->mtd.size, flash->mtd.size / (1024*1024),
+                (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
                 flash->mtd.erasesize, flash->mtd.erasesize / 1024,
                 flash->mtd.numeraseregions);
 
         if (flash->mtd.numeraseregions)
                 for (i = 0; i < flash->mtd.numeraseregions; i++)
                         DEBUG(MTD_DEBUG_LEVEL2,
-                                "mtd.eraseregions[%d] = { .offset = 0x%.8x, "
+                                "mtd.eraseregions[%d] = { .offset = 0x%llx, "
                                 ".erasesize = 0x%.8x (%uKiB), "
                                 ".numblocks = %d }\n",
-                                i, flash->mtd.eraseregions[i].offset,
+                                i, (long long)flash->mtd.eraseregions[i].offset,
                                 flash->mtd.eraseregions[i].erasesize,
                                 flash->mtd.eraseregions[i].erasesize / 1024,
                                 flash->mtd.eraseregions[i].numblocks);
@@ -722,12 +723,12 @@ static int __devinit m25p_probe(struct spi_device *spi)
                 if (nr_parts > 0) {
                         for (i = 0; i < nr_parts; i++) {
                                 DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
-                                        "{.name = %s, .offset = 0x%.8x, "
-                                                ".size = 0x%.8x (%uKiB) }\n",
+                                        "{.name = %s, .offset = 0x%llx, "
+                                                ".size = 0x%llx (%lldKiB) }\n",
                                         i, parts[i].name,
-                                        parts[i].offset,
-                                        parts[i].size,
-                                        parts[i].size / 1024);
+                                        (long long)parts[i].offset,
+                                        (long long)parts[i].size,
+                                        (long long)(parts[i].size >> 10));
                         }
                         flash->partitioned = 1;
                         return add_mtd_partitions(&flash->mtd, parts, nr_parts);
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 65126cd668f..d44f741ae22 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -16,6 +16,7 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/err.h>
+#include <linux/math64.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
@@ -152,15 +153,20 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
         struct spi_message      msg;
         unsigned                blocksize = priv->page_size << 3;
         uint8_t                 *command;
+        uint32_t                rem;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%x len 0x%x\n",
-                        dev_name(&spi->dev),
-                        instr->addr, instr->len);
+        DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%llx len 0x%llx\n",
+              dev_name(&spi->dev), (long long)instr->addr,
+              (long long)instr->len);
 
         /* Sanity checks */
-        if ((instr->addr + instr->len) > mtd->size
-                        || (instr->len % priv->page_size) != 0
-                        || (instr->addr % priv->page_size) != 0)
+        if (instr->addr + instr->len > mtd->size)
+                return -EINVAL;
+        div_u64_rem(instr->len, priv->page_size, &rem);
+        if (rem)
+                return -EINVAL;
+        div_u64_rem(instr->addr, priv->page_size, &rem);
+        if (rem)
                 return -EINVAL;
 
         spi_message_init(&msg);
@@ -178,7 +184,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
                 /* Calculate flash page address; use block erase (for speed) if
                  * we're at a block boundary and need to erase the whole block.
                  */
-                pageaddr = instr->addr / priv->page_size;
+                pageaddr = div_u64(instr->len, priv->page_size);
                 do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize;
                 pageaddr = pageaddr << priv->page_offset;
 
@@ -667,8 +673,8 @@ add_dataflash_otp(struct spi_device *spi, char *name,
         if (revision >= 'c')
                 otp_tag = otp_setup(device, revision);
 
-        dev_info(&spi->dev, "%s (%d KBytes) pagesize %d bytes%s\n",
-                        name, DIV_ROUND_UP(device->size, 1024),
+        dev_info(&spi->dev, "%s (%lld KBytes) pagesize %d bytes%s\n",
+                        name, (long long)((device->size + 1023) >> 10),
                         pagesize, otp_tag);
         dev_set_drvdata(&spi->dev, priv);