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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 834D8C43331 for ; Sun, 29 Mar 2020 07:53:25 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 26F38206CC for ; Sun, 29 Mar 2020 07:53:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="QqF6YFLR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26F38206CC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 85B2D166D; Sun, 29 Mar 2020 09:52:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 85B2D166D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1585468403; bh=0appSiwePRzaX7P3v2E2d8q87ccTM7HPGCzDDbhQ470=; h=Date:From:To:Subject:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=QqF6YFLRHUI+Td7pwlCj3JgmqLxt6zzisGZ4HxY83mZeLcWnW/T/oibTOJqCzS/jw pWiANr+/8BMjvc5rOTZucIv7GxJk57jnaz3A/jAWA+hocBylpzu5FEESAXfkbMoVGY leCU83NvN9PXKK4Jqj4tbO2SPFrrjip/yQMtb1GM= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id EA56EF80140; Sun, 29 Mar 2020 09:52:32 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 78939F80146; Sun, 29 Mar 2020 09:52:31 +0200 (CEST) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id DADECF800EB for ; Sun, 29 Mar 2020 09:52:28 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz DADECF800EB X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 2599DADF8; Sun, 29 Mar 2020 07:52:26 +0000 (UTC) Date: Sun, 29 Mar 2020 09:52:23 +0200 Message-ID: From: Takashi Iwai To: George Spelvin Subject: Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions In-Reply-To: <202003281643.02SGhBrh000992@sdf.org> References: <202003281643.02SGhBrh000992@sdf.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Cc: alsa-devel@alsa-project.org, Marek Lindner , linux-scsi@vger.kernel.org, Simon Wunderlich , linux-wireless@vger.kernel.org, Takashi Iwai , Antonio Quartulli , linux-kernel@vger.kernel.org, b.a.t.m.a.n@diktynna.open-mesh.org, Hannes Reinecke , Johannes Berg , Sven Eckelmann X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Thu, 22 Aug 2019 02:25:10 +0200, George Spelvin wrote: > Likewise, "msecs_to_jiffies(seconds * 1000)" is more > conveniently written "seconds * HZ". I thought the compiler already optimizes to the constant calculation for the above case? thanks, Takashi 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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1E72C43331 for ; Sun, 29 Mar 2020 07:52:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F14D206CC for ; Sun, 29 Mar 2020 07:52:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727835AbgC2Hwa (ORCPT ); Sun, 29 Mar 2020 03:52:30 -0400 Received: from mx2.suse.de ([195.135.220.15]:55512 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726342AbgC2Hw3 (ORCPT ); Sun, 29 Mar 2020 03:52:29 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 2599DADF8; Sun, 29 Mar 2020 07:52:26 +0000 (UTC) Date: Sun, 29 Mar 2020 09:52:23 +0200 Message-ID: From: Takashi Iwai To: George Spelvin Cc: , Hannes Reinecke , , Marek Lindner , Simon Wunderlich , Antonio Quartulli , Sven Eckelmann , , Johannes Berg , , Jaroslav Kysela , Takashi Iwai , Subject: Re: [RFC PATCH v1 13/50] Avoid some useless msecs/jiffies conversions In-Reply-To: <202003281643.02SGhBrh000992@sdf.org> References: <202003281643.02SGhBrh000992@sdf.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On Thu, 22 Aug 2019 02:25:10 +0200, George Spelvin wrote: > Likewise, "msecs_to_jiffies(seconds * 1000)" is more > conveniently written "seconds * HZ". I thought the compiler already optimizes to the constant calculation for the above case? thanks, Takashi