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drm: Move for_each_if() to util_macros.h for wider use

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Other subsystem(s) may want to reuse the for_each_if() macro.
Move it to util_macros.h to make it globally available.

Suggested-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250213182527.3092371-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Andy Shevchenko 2025-02-13 20:24:00 +02:00 • committed by Bartosz Golaszewski
parent 8efee9c431
commit b2108fc82a
2 changed files with 16 additions and 15 deletions
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16
include/drm/drm_util.h
View file

@ -36,6 +36,7 @@
#include <linux/kgdb.h>
#include <linux/preempt.h>
#include <linux/smp.h>
#include <linux/util_macros.h>
/*
* Use EXPORT_SYMBOL_FOR_TESTS_ONLY() for functions that shall
@ -47,21 +48,6 @@
#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
#endif
/**
* for_each_if - helper for handling conditionals in various for_each macros
* @condition: The condition to check
*
* Typical use::
*
* #define for_each_foo_bar(x, y) \'
* list_for_each_entry(x, y->list, head) \'
* for_each_if(x->something == SOMETHING)
*
* The for_each_if() macro makes the use of for_each_foo_bar() less error
* prone.
*/
#define for_each_if(condition) if (!(condition)) {} else
/**
* drm_can_sleep - returns true if currently okay to sleep
*

15
include/linux/util_macros.h
View file

@ -4,6 +4,21 @@
#include <linux/math.h>
/**
* for_each_if - helper for handling conditionals in various for_each macros
* @condition: The condition to check
*
* Typical use::
*
* #define for_each_foo_bar(x, y) \'
* list_for_each_entry(x, y->list, head) \'
* for_each_if(x->something == SOMETHING)
*
* The for_each_if() macro makes the use of for_each_foo_bar() less error
* prone.
*/
#define for_each_if(condition) if (!(condition)) {} else
/**
* find_closest - locate the closest element in a sorted array
* @x: The reference value.