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lib/string_choices: Add some comments to make more clear for string choices helpers.

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Add some comments to explain why we should use string_choices helpers.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Acked-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240905092540.2962122-3-lihongbo22@huawei.com
Signed-off-by: Kees Cook <kees@kernel.org>
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Hongbo Li 2024-09-05 17:25:40 +08:00 committed by Kees Cook
parent c2708ba91c
commit c121d5cc3a
1 changed files with 13 additions and 0 deletions
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13
include/linux/string_choices.h
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@ -2,6 +2,19 @@
#ifndef _LINUX_STRING_CHOICES_H_ #ifndef _LINUX_STRING_CHOICES_H_
#define _LINUX_STRING_CHOICES_H_ #define _LINUX_STRING_CHOICES_H_
/*
* Here provide a series of helpers in the str_$TRUE_$FALSE format (you can
* also expand some helpers as needed), where $TRUE and $FALSE are their
* corresponding literal strings. These helpers can be used in the printing
* and also in other places where constant strings are required. Using these
* helpers offers the following benefits:
* 1) Reducing the hardcoding of strings, which makes the code more elegant
* through these simple literal-meaning helpers.
* 2) Unifying the output, which prevents the same string from being printed
* in various forms, such as enable/disable, enabled/disabled, en/dis.
* 3) Deduping by the linker, which results in a smaller binary file.
*/
#include <linux/types.h> #include <linux/types.h>
static inline const char *str_enable_disable(bool v) static inline const char *str_enable_disable(bool v)