On 03/26/2014 07:32 PM, Stephen Warren wrote:
On 03/26/2014 06:01 AM, Przemyslaw Marczak wrote:
Hello Stephen,
On 03/25/2014 08:37 PM, Stephen Warren wrote:
On 03/19/2014 11:58 AM, Przemyslaw Marczak wrote:
Those commands basis on implementation of random UUID generator
version 4
which is described in RFC4122. The same algorithm is used for generation
both ids but string representation is different as below.
diff --git a/include/common.h b/include/common.h
#if defined(CONFIG_RANDOM_MACADDR) || \
defined(CONFIG_BOOTP_RANDOM_DELAY) || \
defined(CONFIG_CMD_LINK_LOCAL) || \
- defined(CONFIG_RANDOM_UUID)
+ defined(CONFIG_RANDOM_UUID) || \
+ defined(CONFIG_CMD_UUID)
Why not require that if you want to use CONFIG_CMD_UUID, you must define
CONFIG_RANDOM_UUID too? You can even make that automatic in
include/config_fallbacks.h which already does similar things:
#if defined(CONFIG_CMD_FAT) && !defined(CONFIG_FS_FAT)
#define CONFIG_FS_FAT
#endif
That way, you won't need to touch lib/Makefile in this patch either, or
modify the ifdef that wraps gen_rand_uuid().
I change this part of code in one of my other patch set which can be
found here: http://patchwork.ozlabs.org/patch/332499/
After apply those changes then I add some automation here.
OK. It seems better to get the code right when first introduced, but as
long as it gets simplified, I guess that's fine.
diff --git a/lib/uuid.c b/lib/uuid.c
...
+#ifdef CONFIG_CMD_UUID
+int do_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
...
This duplicates some code; the call to gen_rand_uuid(). I think it would
be better as:
if (argc < 2)
return CMD_RET_USAGE;
...
Yes, this is better, but the first condition should be as:
if ((argc != 1) || (argc != 2))
s/||/&&/
Ah, my mistake.
This should be as:
if (argc > 2)
return CMD_RET_USAGE;
since argc value could be only "1" or only "2".
Thanks
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marc...@samsung.com
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