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barebox / arch / powerpc / mach-mpc85xx / include / mach / ffs64.h
@Masahiro Yamada Masahiro Yamada on 4 May 2020 659 bytes ppc: rename arch/ppc/ to arch/powerpc/
/*
 * Copyright 2013 GE Intelligent Platforms, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
#include <linux/log2.h>

static inline int ffs64(u64 x)
{
	return __ilog2_u64(x & -x) + 1ull;
}