From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3BB8AF44847 for ; Fri, 10 Apr 2026 12:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:cc:Content-Type:MIME-Version :References:Subject:To:From:Message-ID:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: List-Owner; bh=QNbKEqaPolXnyDtyb0N89kzCxyVMHVZnkdKQSB7ziQU=; b=G2Otp1wyQdo0XH RaztXKAbSQxBArCcWN+tYsqpw3jeeh4x/WzDAFbQ0Qf1ZKzHdvEdJdAbLUnwPOjHhTIzAUyGUGUP7 V7xvzrZgz4Ukrvk9veSsDMTKg/rJwnAi4xSWiOf4KfSlKDDhl8zv/5MMeijA8Y5ajuxDgERjL91Q9 BctJot9Frc71Akciw1equd7lMGV/OMX1AIc/0VNHBjwnt8Ou6Ih2pF2jFn47odduCRLbODboUuy1R 2utbAI0XxPC2UHi5hyQJNa77L5HpJQKjqTAdXsQ3U0HGiZaMb78mUIA3VBeHBf8d6dl8F8/NO1ocH +VfDEiIYVxT8CvpcPJVQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBAoy-0000000C99w-1tg3; Fri, 10 Apr 2026 12:18:48 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBAow-0000000C98i-2q6G; Fri, 10 Apr 2026 12:18:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 562114415B; Fri, 10 Apr 2026 12:18:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51EC1C2BCB0; Fri, 10 Apr 2026 12:18:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775823526; bh=OWF9pG0hQ95RygMnh7+vDhgeHyKnJRYOWEj0GBEdTEY=; h=Date:From:To:Subject:References:cc:From; b=gYJITPmdy2GNPsbI6AD2iZ7zhMgePGS+gqPbXQCs7WsAhhu/qyX8hH+Xi69K/urPl BoSeBlt4BbqU4ZnISQ8slAdj5VCjiDRcN9bfEzsBBE9dj/wWUHwDFECfvHb21gTPQ5 cvjmyUKF+jJ25R6iZ5vAzO3xaA8XXwp+1aea+F9V1esc/zHHX5PN7paJBTByHcDBl2 auQKRV9dXMsXdujNzqathwxe2n8RWyCswG/DXqH2EllhOxm/ndPsrTIJX4WzacriA/ t/DalYn89VnEQy6E+ROiviOqorgI/E12LPFkiSGiJSdwmaaiky6k8Wx7OG7Y+w6GUr Ni5ruNMG7XCYg== Date: Fri, 10 Apr 2026 14:18:42 +0200 Message-ID: <20260410120317.776571540@kernel.org> User-Agent: quilt/0.68 From: Thomas Gleixner To: LKML Subject: [patch 03/38] x86/apm: Remove last LATCH usage References: <20260410120044.031381086@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 cc: Arnd Bergmann , x86@kernel.org, Lu Baolu , iommu@lists.linux.dev, Michael Grzeschik , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Herbert Xu , linux-crypto@vger.kernel.org, Vlastimil Babka , linux-mm@kvack.org, David Woodhouse , Bernie Thompson , linux-fbdev@vger.kernel.org, "Theodore Tso" , linux-ext4@vger.kernel.org, Andrew Morton , Uladzislau Rezki , Marco Elver , Dmitry Vyukov , kasan-dev@googlegroups.com, Andrey Ryabinin , Thomas Sailer , linux-hams@vger.kernel.org, "Jason A. Donenfeld" , Richard Henderson , linux-alpha@vger.kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Huacai Chen , loongarch@lists.linux.dev, Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org, Dinh Nguyen , Jonas Bonn , linux-openrisc@vger.kernel.org, Helge Deller , linux-parisc@vger.kernel.org, Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Paul Walmsley , linux-riscv@lists.infradead.org, Heiko Carstens , linux-s390@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260410_051846_758216_C4A68FBD X-CRM114-Status: GOOD ( 12.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org LATCH is a historical leftover and has been replaced with PIT_LATCH in all other places a decade ago. Replace the last holdout and remove the definition from jiffies.h. This allows to remove the otherwise unused CLOCK_TICK_RATE define in the next step. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/apm_32.c | 4 ++-- include/linux/jiffies.h | 3 --- 2 files changed, 2 insertions(+), 5 deletions(-) --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -1196,9 +1196,9 @@ static void reinit_timer(void) /* set the clock to HZ */ outb_p(0x34, PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ udelay(10); - outb_p(LATCH & 0xff, PIT_CH0); /* LSB */ + outb_p(PIT_LATCH & 0xff, PIT_CH0); /* LSB */ udelay(10); - outb_p(LATCH >> 8, PIT_CH0); /* MSB */ + outb_p(PIT_LATCH >> 8, PIT_CH0); /* MSB */ udelay(10); raw_spin_unlock_irqrestore(&i8253_lock, flags); #endif --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -56,9 +56,6 @@ #define SH_DIV(NOM,DEN,LSH) ( (((NOM) / (DEN)) << (LSH)) \ + ((((NOM) % (DEN)) << (LSH)) + (DEN) / 2) / (DEN)) -/* LATCH is used in the interval timer and ftape setup. */ -#define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ) /* For divider */ - extern void register_refined_jiffies(long clock_tick_rate); /* TICK_USEC is the time between ticks in usec */