linux_old1/kernel/platform-feature.c

28 lines
654 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/bitops.h>
#include <linux/cache.h>
#include <linux/export.h>
#include <linux/platform-feature.h>
#define PLATFORM_FEAT_ARRAY_SZ BITS_TO_LONGS(PLATFORM_FEAT_N)
static unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ];
void platform_set(unsigned int feature)
{
set_bit(feature, platform_features);
}
EXPORT_SYMBOL_GPL(platform_set);
void platform_clear(unsigned int feature)
{
clear_bit(feature, platform_features);
}
EXPORT_SYMBOL_GPL(platform_clear);
bool platform_has(unsigned int feature)
{
return test_bit(feature, platform_features);
}
EXPORT_SYMBOL_GPL(platform_has);