From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F0261F0E28; Mon, 3 Mar 2025 11:03:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.193 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740999844; cv=none; b=ks2U9uh5Pr2VusfBhIl8C9TV6zFgpDZ4J6g8hV69t+AbTgxi5ejsI01qj0cTmeJJ8+gbNFZ36BIYdCBJpgl4B1yGMK41zNTA5jQYmje8Y1o+Dne05w23MLqleVvJm56ZNFH6dlo6tFn2QlueC0zR74gf757/s7zr/IKuGAK1DtE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740999844; c=relaxed/simple; bh=KuJNrgV0L41NqM51p8r18I1mt8rIt7jB62RLFcUV8bc=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=bFHHFPJWqrJzjMlCK497H9vCT3WnDso7Tvi3qD9lxfnuQ2wUiEEgyrmSa69UeWGcwNS2wLSSfyxCRxZNm7PNk+LiP6OV+B23CUT6fap//3Fv7mCy1U0hjWCxxyKFu193stZ2hbv49UW0UrhpYQCNxWOmCWi6mcnHcmzAOzvUT4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=V8rOERi1; arc=none smtp.client-ip=217.70.183.193 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="V8rOERi1" Received: by mail.gandi.net (Postfix) with ESMTPSA id A6DF9442A0; Mon, 3 Mar 2025 11:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1740999836; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UYg0OhYtGacV1+2euRFkrodD8aiR3ZlFwLFtEbH5bs4=; b=V8rOERi1COiXtad2VjJsc+kUj6Z6y0+6M3Z8Aca8oFl51RYAgTUurp8mL0bv5hRvcjIr7m qg39TNohItoSwlghPft2YRClrT0x6wBCJRl1A3C2dzF5wliEbC66pUfGzWjKaScV5sDy0a r00HZwBNkvTlDKdDhJUqyrr5sFGQUWErqyHpwkkDOC7SvkcH/ZiTIqqURZwdYZ2QvRXxyC QGA32FNXcv5XcpWeSE4mME5PIq+XBUKqUhu7C6GeVYgANuYgqCIgph3PvEE4iImy5yUbnd MIXeIv/foWBijvuAYDjB/VTcmba/48RTmFzVawX1rfT6eXdxC6ipw2gNY+fh4A== From: Miquel Raynal To: Markus Elfring Cc: linux-tegra@vger.kernel.org, linux-mtd@lists.infradead.org, Jonathan Hunter , Lucas Stach , Richard Weinberger , Stefan Agner , Thierry Reding , Vignesh Raghavendra , LKML , kernel-janitors@vger.kernel.org, Qasim Ijaz , Natalie Vock Subject: Re: mtd: rawnand: tegra: Simplify maximum determination in tegra_nand_setup_timing() In-Reply-To: <0193ac44-e858-4aff-a50f-dd95dbf3de5b@web.de> (Markus Elfring's message of "Mon, 3 Mar 2025 11:55:49 +0100") References: <87pliy9yyv.fsf@bootlin.com> <0193ac44-e858-4aff-a50f-dd95dbf3de5b@web.de> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Mon, 03 Mar 2025 12:03:55 +0100 Message-ID: <87h64a9y04.fsf@bootlin.com> Precedence: bulk X-Mailing-List: kernel-janitors@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdelkeeliecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefujghffgffkfggtgfgsehtqhertddtreejnecuhfhrohhmpefoihhquhgvlhcutfgrhihnrghluceomhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepteehkeelvddvheehtdefkedtjeeutedthfegudekgeefleetkeettdekiefftdeinecuffhomhgrihhnpegsohhothhlihhnrdgtohhmnecukfhppeeltddrkeelrdduieefrdduvdejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepledtrdekledrudeifedruddvjedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepudefpdhrtghpthhtohepofgrrhhkuhhsrdfglhhfrhhinhhgseifvggsrdguvgdprhgtphhtthhopehlihhnuhigqdhtvghgrhgrsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqmhhtugeslhhishhtshdrihhnfhhrrgguvggrugdrohhrghdprhgtphhtthhopehjohhnrghthhgrnhhhsehnvhhiughirgdrtghomhdpr hgtphhtthhopeguvghvsehlhihngigvhigvrdguvgdprhgtphhtthhopehrihgthhgrrhgusehnohgurdgrthdprhgtphhtthhopehsthgvfhgrnhesrghgnhgvrhdrtghhpdhrtghpthhtohepthhhihgvrhhrhidrrhgvughinhhgsehgmhgrihhlrdgtohhm X-GND-Sasl: miquel.raynal@bootlin.com On 03/03/2025 at 11:55:49 +01, Markus Elfring wrote: >> I am sorry, I do not see what gets simplified. max(max(a,b),max(c,d)) >> looks simpler than max3(a,b,max(c,d)). > > You would eventually like to express that a maximum should be determined > from three (or even four?) values. If there was a max4(), why not, but in this case I don't see the point. > https://elixir.bootlin.com/linux/v6.14-rc4/source/include/linux/minmax.h#= L147 > > >> Does it bring something in terms >> of optimization? > Corresponding effects depend on various factors, don't they? Ok, so I'll assume the answer to my question is "no". Thanks, Miqu=C3=A8l 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 7AA3DC282C5 for ; Mon, 3 Mar 2025 11:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bKMEAK5Jcaw/e3aABthX/8Kg2bmHLyy6oh0DuxOZLu4=; b=dahB6CtxM/isEp b0vCPiBazYAUDpnf/Abeaw3fIrdVkl72ubxuPmVD4UbcyvFrHghUO6nQ8X23s9sYsfeh2xwC7lVjY ciAM9zSlL+T0Gb2IiebnLlsfFTzbaq+7MBA+9CpXyPt4QT/nxghDwk9KuqAnACWQ7X28Pzwr2fp+9 Dt+xdo67Ibm22J72Wi7dfkpNtsgx1saUEZDRnk+QErw9iIr3gcUZt5PSBifLd+n8eWuU2yBPY3lCn kzU5pAJf10FwazfpDsiO45CROYRCjVUoXJqLYf7j9A5olUYn6pWtT/GWRaWHx7VkA0CZHzklJbdOU UVkTDOAP0eTqIaCXkKcg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tp3ac-00000000Ryc-3vwW; Mon, 03 Mar 2025 11:04:02 +0000 Received: from relay1-d.mail.gandi.net ([2001:4b98:dc4:8::221]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tp3aZ-00000000Rx5-3Do9 for linux-mtd@lists.infradead.org; Mon, 03 Mar 2025 11:04:01 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id A6DF9442A0; Mon, 3 Mar 2025 11:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1740999836; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UYg0OhYtGacV1+2euRFkrodD8aiR3ZlFwLFtEbH5bs4=; b=V8rOERi1COiXtad2VjJsc+kUj6Z6y0+6M3Z8Aca8oFl51RYAgTUurp8mL0bv5hRvcjIr7m qg39TNohItoSwlghPft2YRClrT0x6wBCJRl1A3C2dzF5wliEbC66pUfGzWjKaScV5sDy0a r00HZwBNkvTlDKdDhJUqyrr5sFGQUWErqyHpwkkDOC7SvkcH/ZiTIqqURZwdYZ2QvRXxyC QGA32FNXcv5XcpWeSE4mME5PIq+XBUKqUhu7C6GeVYgANuYgqCIgph3PvEE4iImy5yUbnd MIXeIv/foWBijvuAYDjB/VTcmba/48RTmFzVawX1rfT6eXdxC6ipw2gNY+fh4A== From: Miquel Raynal To: Markus Elfring Cc: linux-tegra@vger.kernel.org, linux-mtd@lists.infradead.org, Jonathan Hunter , Lucas Stach , Richard Weinberger , Stefan Agner , Thierry Reding , Vignesh Raghavendra , LKML , kernel-janitors@vger.kernel.org, Qasim Ijaz , Natalie Vock Subject: Re: mtd: rawnand: tegra: Simplify maximum determination in tegra_nand_setup_timing() In-Reply-To: <0193ac44-e858-4aff-a50f-dd95dbf3de5b@web.de> (Markus Elfring's message of "Mon, 3 Mar 2025 11:55:49 +0100") References: <87pliy9yyv.fsf@bootlin.com> <0193ac44-e858-4aff-a50f-dd95dbf3de5b@web.de> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Mon, 03 Mar 2025 12:03:55 +0100 Message-ID: <87h64a9y04.fsf@bootlin.com> MIME-Version: 1.0 X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdelkeeliecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefujghffgffkfggtgfgsehtqhertddtreejnecuhfhrohhmpefoihhquhgvlhcutfgrhihnrghluceomhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepteehkeelvddvheehtdefkedtjeeutedthfegudekgeefleetkeettdekiefftdeinecuffhomhgrihhnpegsohhothhlihhnrdgtohhmnecukfhppeeltddrkeelrdduieefrdduvdejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepledtrdekledrudeifedruddvjedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepudefpdhrtghpthhtohepofgrrhhkuhhsrdfglhhfrhhinhhgseifvggsrdguvgdprhgtphhtthhopehlihhnuhigqdhtvghgrhgrsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqmhhtugeslhhishhtshdrihhnfhhrrgguvggrugdrohhrghdprhgtphhtthhopehjohhnrghthhgrnhhhsehnvhhiughirgdrtghomhdpr hgtphhtthhopeguvghvsehlhihngigvhigvrdguvgdprhgtphhtthhopehrihgthhgrrhgusehnohgurdgrthdprhgtphhtthhopehsthgvfhgrnhesrghgnhgvrhdrtghhpdhrtghpthhtohepthhhihgvrhhrhidrrhgvughinhhgsehgmhgrihhlrdgtohhm X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250303_030400_108498_B4BCA22A X-CRM114-Status: UNSURE ( 7.89 ) X-CRM114-Notice: Please train this message. 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