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kconfig: Warn if help text is blank 

Blank help texts are probably either a typo, a Kconfig misunderstanding,
or some kind of half-committing to adding a help text (in which case a
TODO comment would be clearer, if the help text really can't be added
right away).

Best to flag them, IMO.

Example warning:

	drivers/mmc/host/Kconfig:877: warning: 'MMC_TOSHIBA_PCI' defined with blank help text

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
zero-colors
Ulf Magnusson 2018-01-31 10:34:30 +01:00 committed by Masahiro Yamada
parent e191603136
commit 1b9eda2e48
1 changed files with 6 additions and 0 deletions
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6
scripts/kconfig/zconf.y
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@ -436,6 +436,12 @@ help: help_start T_HELPTEXT
zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
current_entry->sym->name ?: "<choice>");
}
/* Is the help text empty or all whitespace? */
if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
zconfprint("warning: '%s' defined with blank help text",
current_entry->sym->name ?: "<choice>");
current_entry->help = $2;
};