From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936867AbdJQQ0j (ORCPT ); Tue, 17 Oct 2017 12:26:39 -0400 Received: from terminus.zytor.com ([65.50.211.136]:52137 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759397AbdJQQ0R (ORCPT ); Tue, 17 Oct 2017 12:26:17 -0400 Date: Tue, 17 Oct 2017 09:21:46 -0700 From: tip-bot for Andi Kleen Message-ID: Cc: peterz@infradead.org, hpa@zytor.com, mingo@kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, ak@linux.intel.com, torvalds@linux-foundation.org Reply-To: hpa@zytor.com, peterz@infradead.org, mingo@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, ak@linux.intel.com In-Reply-To: <20171013215645.23166-2-andi@firstfloor.org> References: <20171013215645.23166-2-andi@firstfloor.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/fpu] bitops: Add clear/set_bit32() to linux/bitops.h Git-Commit-ID: cbe96375025e14fc76f9ed42ee5225120d7210f8 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: cbe96375025e14fc76f9ed42ee5225120d7210f8 Gitweb: https://git.kernel.org/tip/cbe96375025e14fc76f9ed42ee5225120d7210f8 Author: Andi Kleen AuthorDate: Fri, 13 Oct 2017 14:56:41 -0700 Committer: Ingo Molnar CommitDate: Tue, 17 Oct 2017 17:14:56 +0200 bitops: Add clear/set_bit32() to linux/bitops.h Add two simple wrappers around set_bit/clear_bit() that accept the common case of an u32 array. This avoids writing casts in all callers. Signed-off-by: Andi Kleen Reviewed-by: Thomas Gleixner Cc: Linus Torvalds Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20171013215645.23166-2-andi@firstfloor.org Signed-off-by: Ingo Molnar --- include/linux/bitops.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 8fbe259..36794f0 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -227,6 +227,32 @@ static inline unsigned long __ffs64(u64 word) return __ffs((unsigned long)word); } +/* + * clear_bit32 - Clear a bit in memory for u32 array + * @nr: Bit to clear + * @addr: u32 * address of bitmap + * + * Same as clear_bit, but avoids needing casts for u32 arrays. + */ + +static __always_inline void clear_bit32(long nr, volatile u32 *addr) +{ + clear_bit(nr, (volatile unsigned long *)addr); +} + +/* + * set_bit32 - Set a bit in memory for u32 array + * @nr: Bit to clear + * @addr: u32 * address of bitmap + * + * Same as set_bit, but avoids needing casts for u32 arrays. + */ + +static __always_inline void set_bit32(long nr, volatile u32 *addr) +{ + set_bit(nr, (volatile unsigned long *)addr); +} + #ifdef __KERNEL__ #ifndef set_mask_bits