From: Simon Glass <sjg@chromium.org>
To: U-Boot Mailing List <u-boot@lists.denx.de>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Heinrich Schuchardt <xypron.glpk@gmx.de>,
Simon Glass <sjg@chromium.org>
Subject: [PATCH v2] disk: Use a helper function to reduce duplication
Date: Mon, 20 Mar 2023 08:29:57 +1300 [thread overview]
Message-ID: <20230319192957.1084530-1-sjg@chromium.org> (raw)
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>
---
Changes in v2:
- Rebase to -next
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 d32747e2242d..7f1fd80b2248 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 part_blk_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 part_blk_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 part_blk_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);
}
--
2.40.0.rc1.284.g88254d51c5-goog
next reply other threads:[~2023-03-19 19:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 19:29 Simon Glass [this message]
2023-03-20 7:31 ` [PATCH v2] disk: Use a helper function to reduce duplication Ilias Apalodimas
2023-03-20 7:57 ` AKASHI Takahiro
2023-03-31 14:17 ` Tom Rini
2023-04-03 0:06 ` AKASHI Takahiro
2023-04-03 1:16 ` Simon Glass
2023-04-03 14:46 ` Tom Rini
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