[U-Boot] [PATCH 2/3] cmd: part: Extract common code to separate function
Lukasz Majewski
lukma at denx.de
Wed Feb 28 09:25:52 UTC 2018
On Mon, 26 Feb 2018 23:18:00 +0200
Sam Protsenko <semen.protsenko at linaro.org> wrote:
> Refactor the code for "part start" and "part size" commands to avoid
> code duplication.
>
> Signed-off-by: Sam Protsenko <semen.protsenko at linaro.org>
> ---
> cmd/part.c | 61
> +++++++++++++++++++++++-------------------------------------- 1 file
> changed, 23 insertions(+), 38 deletions(-)
>
> diff --git a/cmd/part.c b/cmd/part.c
> index fd8825a7ec..ec791fdc5d 100644
> --- a/cmd/part.c
> +++ b/cmd/part.c
> @@ -22,6 +22,11 @@
> #include <part.h>
> #include <vsprintf.h>
>
> +enum cmd_part_info {
> + CMD_PART_INFO_START = 0,
> + CMD_PART_INFO_SIZE,
> +};
> +
> static int do_part_uuid(int argc, char * const argv[])
> {
> int part;
> @@ -108,7 +113,7 @@ static int do_part_list(int argc, char * const
> argv[]) return 0;
> }
>
> -static int do_part_start(int argc, char * const argv[])
> +static int do_part_info(int argc, char * const argv[], enum
> cmd_part_info param) {
> struct blk_desc *desc;
> disk_partition_t info;
> @@ -138,7 +143,17 @@ static int do_part_start(int argc, char * const
> argv[]) return 1;
> }
>
> - snprintf(buf, sizeof(buf), LBAF, info.start);
> + switch (param) {
> + case CMD_PART_INFO_START:
> + snprintf(buf, sizeof(buf), LBAF, info.start);
> + break;
> + case CMD_PART_INFO_SIZE:
> + snprintf(buf, sizeof(buf), LBAF, info.size);
> + break;
> + default:
> + printf("** Unknown cmd_part_info value: %d\n",
> param);
> + return 1;
> + }
>
> if (argc > 3)
> env_set(argv[3], buf);
> @@ -148,44 +163,14 @@ static int do_part_start(int argc, char * const
> argv[]) return 0;
> }
>
> -static int do_part_size(int argc, char * const argv[])
> +static int do_part_start(int argc, char * const argv[])
> {
> - struct blk_desc *desc;
> - disk_partition_t info;
> - char buf[512] = { 0 };
> - char *endp;
> - int part;
> - int err;
> - int ret;
> -
> - if (argc < 3)
> - return CMD_RET_USAGE;
> - if (argc > 4)
> - return CMD_RET_USAGE;
> -
> - ret = blk_get_device_by_str(argv[0], argv[1], &desc);
> - if (ret < 0)
> - return 1;
> -
> - part = simple_strtoul(argv[2], &endp, 0);
> - if (*endp == '\0') {
> - err = part_get_info(desc, part, &info);
> - if (err)
> - return 1;
> - } else {
> - part = part_get_info_by_name(desc, argv[2], &info);
> - if (part == -1)
> - return 1;
> - }
> -
> - snprintf(buf, sizeof(buf), LBAF, info.size);
> -
> - if (argc > 3)
> - env_set(argv[3], buf);
> - else
> - printf("%s\n", buf);
> + return do_part_info(argc, argv, CMD_PART_INFO_START);
> +}
>
> - return 0;
> +static int do_part_size(int argc, char * const argv[])
> +{
> + return do_part_info(argc, argv, CMD_PART_INFO_SIZE);
> }
>
> static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char *
> const argv[])
Reviewed-by: Lukasz Majewski <lukma at denx.de>
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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