mtd: remove the get_unmapped_area method

It is now unused.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Richard Weinberger <richard@nod.at>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c
index c3939dd..1cd0fff 100644 (file)
--- a/drivers/mtd/chips/map_ram.c
+++ b/drivers/mtd/chips/map_ram.c
@@ -20,8 +20,6 @@ static int mapram_write (struct mtd_info *, loff_t, size_t, size_t *, const u_ch
 static int mapram_erase (struct mtd_info *, struct erase_info *);
 static void mapram_nop (struct mtd_info *);
 static struct mtd_info *map_ram_probe(struct map_info *map);
-static unsigned long mapram_unmapped_area(struct mtd_info *, unsigned long,
-                                         unsigned long, unsigned long);
 static int mapram_point (struct mtd_info *mtd, loff_t from, size_t len,
                         size_t *retlen, void **virt, resource_size_t *phys);
 static int mapram_unpoint(struct mtd_info *mtd, loff_t from, size_t len);
@@ -68,7 +66,6 @@ static struct mtd_info *map_ram_probe(struct map_info *map)
        mtd->type = MTD_RAM;
        mtd->size = map->size;
        mtd->_erase = mapram_erase;
-       mtd->_get_unmapped_area = mapram_unmapped_area;
        mtd->_read = mapram_read;
        mtd->_write = mapram_write;
        mtd->_panic_write = mapram_write;
@@ -86,21 +83,6 @@ static struct mtd_info *map_ram_probe(struct map_info *map)
        return mtd;
 }
 
-
-/*
- * Allow NOMMU mmap() to directly map the device (if not NULL)
- * - return the address to which the offset maps
- * - return -ENOSYS to indicate refusal to do the mapping
- */
-static unsigned long mapram_unmapped_area(struct mtd_info *mtd,
-                                         unsigned long len,
-                                         unsigned long offset,
-                                         unsigned long flags)
-{
-       struct map_info *map = mtd->priv;
-       return (unsigned long) map->virt + offset;
-}
-
 static int mapram_point(struct mtd_info *mtd, loff_t from, size_t len,
                        size_t *retlen, void **virt, resource_size_t *phys)
 {

diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c
index 72934c1..20e3604 100644 (file)
--- a/drivers/mtd/chips/map_rom.c
+++ b/drivers/mtd/chips/map_rom.c
@@ -20,8 +20,6 @@ static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_ch
 static void maprom_nop (struct mtd_info *);
 static struct mtd_info *map_rom_probe(struct map_info *map);
 static int maprom_erase (struct mtd_info *mtd, struct erase_info *info);
-static unsigned long maprom_unmapped_area(struct mtd_info *, unsigned long,
-                                         unsigned long, unsigned long);
 static int maprom_point (struct mtd_info *mtd, loff_t from, size_t len,
                         size_t *retlen, void **virt, resource_size_t *phys);
 static int maprom_unpoint(struct mtd_info *mtd, loff_t from, size_t len);
@@ -55,7 +53,6 @@ static struct mtd_info *map_rom_probe(struct map_info *map)
        mtd->name = map->name;
        mtd->type = MTD_ROM;
        mtd->size = map->size;
-       mtd->_get_unmapped_area = maprom_unmapped_area;
        mtd->_point = maprom_point;
        mtd->_unpoint = maprom_unpoint;
        mtd->_read = maprom_read;
@@ -72,20 +69,6 @@ static struct mtd_info *map_rom_probe(struct map_info *map)
 }
 
 
-/*
- * Allow NOMMU mmap() to directly map the device (if not NULL)
- * - return the address to which the offset maps
- * - return -ENOSYS to indicate refusal to do the mapping
- */
-static unsigned long maprom_unmapped_area(struct mtd_info *mtd,
-                                         unsigned long len,
-                                         unsigned long offset,
-                                         unsigned long flags)
-{
-       struct map_info *map = mtd->priv;
-       return (unsigned long) map->virt + offset;
-}
-
 static int maprom_point(struct mtd_info *mtd, loff_t from, size_t len,
                        size_t *retlen, void **virt, resource_size_t *phys)
 {

diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c
index 4418629..0bf4aea 100644 (file)
--- a/drivers/mtd/devices/mtdram.c
+++ b/drivers/mtd/devices/mtdram.c
@@ -99,19 +99,6 @@ static int ram_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
        return 0;
 }
 
-/*
- * Allow NOMMU mmap() to directly map the device (if not NULL)
- * - return the address to which the offset maps
- * - return -ENOSYS to indicate refusal to do the mapping
- */
-static unsigned long ram_get_unmapped_area(struct mtd_info *mtd,
-                                          unsigned long len,
-                                          unsigned long offset,
-                                          unsigned long flags)
-{
-       return (unsigned long) mtd->priv + offset;
-}
-
 static int ram_read(struct mtd_info *mtd, loff_t from, size_t len,
                size_t *retlen, u_char *buf)
 {
@@ -156,7 +143,6 @@ int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,
        mtd->_erase = ram_erase;
        mtd->_point = ram_point;
        mtd->_unpoint = ram_unpoint;
-       mtd->_get_unmapped_area = ram_get_unmapped_area;
        mtd->_read = ram_read;
        mtd->_write = ram_write;
 

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index d573606..60bf53d 100644 (file)
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -644,32 +644,6 @@ static int concat_block_markbad(struct mtd_info *mtd, loff_t ofs)
 }
 
 /*
- * try to support NOMMU mmaps on concatenated devices
- * - we don't support subdev spanning as we can't guarantee it'll work
- */
-static unsigned long concat_get_unmapped_area(struct mtd_info *mtd,
-                                             unsigned long len,
-                                             unsigned long offset,
-                                             unsigned long flags)
-{
-       struct mtd_concat *concat = CONCAT(mtd);
-       int i;
-
-       for (i = 0; i < concat->num_subdev; i++) {
-               struct mtd_info *subdev = concat->subdev[i];
-
-               if (offset >= subdev->size) {
-                       offset -= subdev->size;
-                       continue;
-               }
-
-               return mtd_get_unmapped_area(subdev, len, offset, flags);
-       }
-
-       return (unsigned long) -ENOSYS;
-}
-
-/*
  * This function constructs a virtual MTD device by concatenating
  * num_devs MTD devices. A pointer to the new device object is
  * stored to *new_dev upon success. This function does _not_
@@ -790,7 +764,6 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],       /* subdevices to c
        concat->mtd._unlock = concat_unlock;
        concat->mtd._suspend = concat_suspend;
        concat->mtd._resume = concat_resume;
-       concat->mtd._get_unmapped_area = concat_get_unmapped_area;
 
        /*
         * Combine the erase block size info of the subdevices:

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index a308e70..be088bc 100644 (file)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -101,18 +101,6 @@ static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
        return part->parent->_unpoint(part->parent, from + part->offset, len);
 }
 
-static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
-                                           unsigned long len,
-                                           unsigned long offset,
-                                           unsigned long flags)
-{
-       struct mtd_part *part = mtd_to_part(mtd);
-
-       offset += part->offset;
-       return part->parent->_get_unmapped_area(part->parent, len, offset,
-                                               flags);
-}
-
 static int part_read_oob(struct mtd_info *mtd, loff_t from,
                struct mtd_oob_ops *ops)
 {
@@ -458,8 +446,6 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
                slave->mtd._unpoint = part_unpoint;
        }
 
-       if (parent->_get_unmapped_area)
-               slave->mtd._get_unmapped_area = part_get_unmapped_area;
        if (parent->_read_oob)
                slave->mtd._read_oob = part_read_oob;
        if (parent->_write_oob)

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 849543f..cd55bf1 100644 (file)
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -297,10 +297,6 @@ struct mtd_info {
        int (*_point) (struct mtd_info *mtd, loff_t from, size_t len,
                       size_t *retlen, void **virt, resource_size_t *phys);
        int (*_unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
-       unsigned long (*_get_unmapped_area) (struct mtd_info *mtd,
-                                            unsigned long len,
-                                            unsigned long offset,
-                                            unsigned long flags);
        int (*_read) (struct mtd_info *mtd, loff_t from, size_t len,
                      size_t *retlen, u_char *buf);
        int (*_write) (struct mtd_info *mtd, loff_t to, size_t len,