Reduce the duplicated code slightly by using a helper function to handle the common code.
This reduces the code size very slightly.
Signed-off-by: Simon Glass sjg@chromium.org ---
disk/disk-uclass.c | 46 +++++++++++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 21 deletions(-)
diff --git a/disk/disk-uclass.c b/disk/disk-uclass.c index 72ff62ebf58..7adfe6b2545 100644 --- a/disk/disk-uclass.c +++ b/disk/disk-uclass.c @@ -65,26 +65,38 @@ int part_create_block_devices(struct udevice *blk_dev) return 0; }
+static int blk_part_setup(struct udevice *dev, lbaint_t *startp, + lbaint_t blkcnt) +{ + struct disk_part *part; + + part = dev_get_uclass_plat(dev); + if (*startp >= part->gpt_part_info.size) + return -E2BIG; + + if (*startp + blkcnt > part->gpt_part_info.size) + blkcnt = part->gpt_part_info.size - *startp; + *startp += part->gpt_part_info.start; + + return 0; +} + static ulong blk_part_read(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *buffer) { struct udevice *parent; - struct disk_part *part; const struct blk_ops *ops; + int ret;
parent = dev_get_parent(dev); ops = blk_get_ops(parent); if (!ops->read) return -ENOSYS;
- part = dev_get_uclass_plat(dev); - if (start >= part->gpt_part_info.size) + ret = blk_part_setup(dev, &start, blkcnt); + if (ret) return 0;
- if ((start + blkcnt) > part->gpt_part_info.size) - blkcnt = part->gpt_part_info.size - start; - start += part->gpt_part_info.start; - return ops->read(parent, start, blkcnt, buffer); }
@@ -92,22 +104,18 @@ static ulong blk_part_write(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, const void *buffer) { struct udevice *parent; - struct disk_part *part; const struct blk_ops *ops; + int ret;
parent = dev_get_parent(dev); ops = blk_get_ops(parent); if (!ops->write) return -ENOSYS;
- part = dev_get_uclass_plat(dev); - if (start >= part->gpt_part_info.size) + ret = blk_part_setup(dev, &start, blkcnt); + if (ret) return 0;
- if ((start + blkcnt) > part->gpt_part_info.size) - blkcnt = part->gpt_part_info.size - start; - start += part->gpt_part_info.start; - return ops->write(parent, start, blkcnt, buffer); }
@@ -115,22 +123,18 @@ static ulong blk_part_erase(struct udevice *dev, lbaint_t start, lbaint_t blkcnt) { struct udevice *parent; - struct disk_part *part; const struct blk_ops *ops; + int ret;
parent = dev_get_parent(dev); ops = blk_get_ops(parent); if (!ops->erase) return -ENOSYS;
- part = dev_get_uclass_plat(dev); - if (start >= part->gpt_part_info.size) + ret = blk_part_setup(dev, &start, blkcnt); + if (ret) return 0;
- if ((start + blkcnt) > part->gpt_part_info.size) - blkcnt = part->gpt_part_info.size - start; - start += part->gpt_part_info.start; - return ops->erase(parent, start, blkcnt); }