From 1b9eda2e4892cb373c7d4cf23439f357c8739e27 Mon Sep 17 00:00:00 2001
From: Ulf Magnusson <ulfalizer@gmail.com>
Date: Wed, 31 Jan 2018 10:34:30 +0100
Subject: [PATCH] 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>
---
scripts/kconfig/zconf.y | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 21ce883e5d9ed..4be98050b961f 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -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;
};
--
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