[U-Boot] [PATCH 7/9] Add a partition type target

[Marek Vasut <marex@denx.de>]

Dear Pantelis Antoniou,

> Dealing with raw block numbers with the dfu is very annoying.
> Introduce a partition method.
> 
> Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
> ---
>  drivers/dfu/dfu_mmc.c | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
> index 5d504df..3733b21 100644
> --- a/drivers/dfu/dfu_mmc.c
> +++ b/drivers/dfu/dfu_mmc.c
> @@ -153,6 +153,10 @@ int dfu_read_medium_mmc(struct dfu_entity *dfu, void
> *buf, long *len)
> 
>  int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
>  {
> +	int dev, part;
> +	struct mmc *mmc;
> +	block_dev_desc_t *blk_dev;
> +	disk_partition_t partinfo;
>  	char *st;
> 
>  	dfu->dev_type = DFU_DEV_MMC;
> @@ -166,8 +170,33 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char
> *s) dfu->layout = DFU_FS_FAT;
>  	} else if (!strcmp(st, "ext4")) {
>  		dfu->layout = DFU_FS_EXT4;
> +	} else if (!strcmp(st, "part")) {
> +
> +		dfu->layout = DFU_RAW_ADDR;
> +
> +		dev = simple_strtoul(s, &s, 10);
> +		part = simple_strtoul(++s, &s, 10);

++s ... this is unreadable and definitelly prone to breakage.

> +
> +		mmc = find_mmc_device(dev);
> +		if (mmc == NULL || mmc_init(mmc)) {
> +			printf("%s: could not find mmc device #%d!\n", __func__, 
dev);
> +			return -1;
> +		}
> +
> +		blk_dev = &mmc->block_dev;
> +		if (get_partition_info(blk_dev, part, &partinfo) != 0) {
> +			printf("%s: could not find partition #%d on mmc device 
#%d!\n",
> +					__func__, part, dev);
> +			return -1;

Try using regular errno.h ... fix all around.

> +		}
> +
> +		dfu->data.mmc.lba_start = partinfo.start;
> +		dfu->data.mmc.lba_size = partinfo.size;
> +		dfu->data.mmc.lba_blk_size = partinfo.blksz;
> +
>  	} else {
>  		printf("%s: Memory layout (%s) not supported!\n", __func__, st);
> +		return -1;

This is new ... does it fit into this patch at all?

>  	}
> 
>  	if (dfu->layout == DFU_FS_EXT4 || dfu->layout == DFU_FS_FAT) {

Best regards,
Marek Vasut