Release 4.11 drivers/gpu/drm/lib/drm_random.h

#ifndef __DRM_RANDOM_H__

#define __DRM_RANDOM_H__

/* This is a temporary home for a couple of utility functions that should
 * be transposed to lib/ at the earliest convenience.
 */

#include <linux/random.h>


#define DRM_RND_STATE_INITIALIZER(seed__) ({                              \
        struct rnd_state state__;                                       \
        prandom_seed_state(&state__, (seed__));                         \
        state__;                                                        \
})


#define DRM_RND_STATE(name__, seed__) \
	struct rnd_state name__ = DRM_RND_STATE_INITIALIZER(seed__)

unsigned int *drm_random_order(unsigned int count,
			       struct rnd_state *state);
void drm_random_reorder(unsigned int *order,
			unsigned int count,
			struct rnd_state *state);

#endif /* !__DRM_RANDOM_H__ */
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Directory: drivers/gpu/drm/lib

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