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cmd: mtd: fix compilation warning for help when SYS_LONGHELP=n

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cmd/mtd.c:447:13: warning: ‘mtd_help_text’ defined but not used [-Wunused-variable]
static char mtd_help_text[] =
            ^~~~~~~~~~~~~

When SYS_LONGHELP is not defined. After looking at how other commands
work, we should surround the whole help text (even its declaration) with
an #ifdef CONFIG_SYS_LONGHELP, since it's compiled out when calling
_CMD_HELP[1] on the help text variable argument to U_BOOT_CMD.

[1] https://elixir.bootlin.com/u-boot/latest/source/include/command.h#L181

Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Quentin Schulz 2019-01-17 10:18:47 +01:00 committed by Tom Rini
parent facdc5fb83
commit a645831ca0
1 changed files with 2 additions and 3 deletions
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5
cmd/mtd.c
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@ -519,8 +519,8 @@ static int mtd_name_complete(int argc, char * const argv[], char last_char,
}
#endif /* CONFIG_AUTO_COMPLETE */
static char mtd_help_text[] =
#ifdef CONFIG_SYS_LONGHELP
static char mtd_help_text[] =
"- generic operations on memory technology devices\n\n"
"mtd list\n"
"mtd read[.raw][.oob] <name> <addr> [<off> [<size>]]\n"
@ -541,9 +541,8 @@ static char mtd_help_text[] =
"\t\t* must be a multiple of a block for erase\n"
"\t\t* must be a multiple of a page otherwise (special case: default is a page with dump)\n"
"\n"
"The .dontskipff option forces writing empty pages, don't use it if unsure.\n"
"The .dontskipff option forces writing empty pages, don't use it if unsure.\n";
#endif
"";
U_BOOT_CMD_WITH_SUBCMDS(mtd, "MTD utils", mtd_help_text,
U_BOOT_SUBCMD_MKENT(list, 1, 1, do_mtd_list),