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 70DEEC433FE for ; Sat, 8 Oct 2022 01:29:46 +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:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=q8u6LFoM+YL2drLVZnqugXSYOvkv0fuq8aMfr60DLPM=; b=sX6c5nQi+F9CQv FCB9JPyFVT7W1+0ZKKbiiTPRghG2tdLT940ghSjRVHWZOwKxQ1WZhfHVHNnEp9uTTVaUzagzLgsBf CAnsbjGev0qxGMLz6duBurl1BlXlecO/+Laf8xff75E9mTYsZsqgQIc8Y35laW5peMPEtnVyjOfuB uJUSpTsGZVWxWGVCN9QWERz/KIMoNq5KrDF8jRQIpFJsbjJS70ufWL2QXC2pvIlBLayVXxFCPSdPw TFgucfoNqmUiNLLHZ8/Jle1y65OAYQG8qhz4VYR09aNNXxPrP9Kwx4DE/HeCigNHY/wiUtX5I8cBv dn9Zrf4+lRB2V+6Hhe+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ogyef-00BHvM-CY; Sat, 08 Oct 2022 01:29:29 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ogyeb-00BHtR-HJ; Sat, 08 Oct 2022 01:29:27 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 880ACCE1926; Sat, 8 Oct 2022 01:29:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6C01C433C1; Sat, 8 Oct 2022 01:29:12 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="F0WFV840" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1665192550; 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=2a2X1YlfkZ0pGgKe1BT3qPauqYJUuDonzfwdbODwUj0=; b=F0WFV8408bfDyb840yWHYb2sS5Uszq0PMkkmtmrVRBUNL2FY49DLuZ3A8VZX01cjH92PRw 963/yLDTfSbPjK9v/cSx6ClQtvwOaP31xlyhs5+LtAOzyMXtRqv5atZ8HOk8wnFIOFKYJl weXSG5WPTsM48QIVGdJf4b19sbZPAzo= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 08b122db (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Sat, 8 Oct 2022 01:29:09 +0000 (UTC) Date: Fri, 7 Oct 2022 19:28:59 -0600 From: "Jason A. Donenfeld" To: "Darrick J. Wong" Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, Andreas Noever , Andrew Morton , Andy Shevchenko , Borislav Petkov , Catalin Marinas , Christoph =?utf-8?Q?B=C3=B6hmwalder?= , Christoph Hellwig , Christophe Leroy , Daniel Borkmann , Dave Airlie , Dave Hansen , "David S . Miller" , Eric Dumazet , Florian Westphal , Greg Kroah-Hartman , "H . Peter Anvin" , Heiko Carstens , Helge Deller , Herbert Xu , Huacai Chen , Hugh Dickins , Jakub Kicinski , "James E . J . Bottomley" , Jan Kara , Jason Gunthorpe , Jens Axboe , Johannes Berg , Jonathan Corbet , Jozsef Kadlecsik , KP Singh , Kees Cook , Marco Elver , Mauro Carvalho Chehab , Michael Ellerman , Pablo Neira Ayuso , Paolo Abeni , Peter Zijlstra , Richard Weinberger , Russell King , Theodore Ts'o , Thomas Bogendoerfer , Thomas Gleixner , Thomas Graf , Ulf Hansson , Vignesh Raghavendra , WANG Xuerui , Will Deacon , Yury Norov , dri-devel@lists.freedesktop.org, kasan-dev@googlegroups.com, kernel-janitors@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-parisc@vger.kernel.org, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, Jan Kara Subject: Re: [PATCH v4 2/6] treewide: use prandom_u32_max() when possible Message-ID: References: <20221007180107.216067-1-Jason@zx2c4.com> <20221007180107.216067-3-Jason@zx2c4.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221007_182925_941137_D0C9E976 X-CRM114-Status: GOOD ( 29.64 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org T24gRnJpLCBPY3QgMDcsIDIwMjIgYXQgMDI6MTc6MjJQTSAtMDcwMCwgRGFycmljayBKLiBXb25n IHdyb3RlOgo+IE9uIEZyaSwgT2N0IDA3LCAyMDIyIGF0IDEyOjAxOjAzUE0gLTA2MDAsIEphc29u IEEuIERvbmVuZmVsZCB3cm90ZToKPiA+IFJhdGhlciB0aGFuIGluY3VycmluZyBhIGRpdmlzaW9u IG9yIHJlcXVlc3RpbmcgdG9vIG1hbnkgcmFuZG9tIGJ5dGVzIGZvcgo+ID4gdGhlIGdpdmVuIHJh bmdlLCB1c2UgdGhlIHByYW5kb21fdTMyX21heCgpIGZ1bmN0aW9uLCB3aGljaCBvbmx5IHRha2Vz Cj4gPiB0aGUgbWluaW11bSByZXF1aXJlZCBieXRlcyBmcm9tIHRoZSBSTkcgYW5kIGF2b2lkcyBk aXZpc2lvbnMuCj4gPiAKPiA+IFJldmlld2VkLWJ5OiBLZWVzIENvb2sgPGtlZXNjb29rQGNocm9t aXVtLm9yZz4KPiA+IFJldmlld2VkLWJ5OiBLUCBTaW5naCA8a3BzaW5naEBrZXJuZWwub3JnPgo+ ID4gUmV2aWV3ZWQtYnk6IENocmlzdG9waCBCw7ZobXdhbGRlciA8Y2hyaXN0b3BoLmJvZWhtd2Fs ZGVyQGxpbmJpdC5jb20+ICMgZm9yIGRyYmQKPiA+IFJldmlld2VkLWJ5OiBKYW4gS2FyYSA8amFj a0BzdXNlLmN6PiAjIGZvciBleHQyLCBleHQ0LCBhbmQgc2JpdG1hcAo+ID4gU2lnbmVkLW9mZi1i eTogSmFzb24gQS4gRG9uZW5mZWxkIDxKYXNvbkB6eDJjNC5jb20+Cj4gPiAtLS0KPiAKPiA8c25p cCwgc2tpcCB0byB0aGUgeGZzIHBhcnQ+Cj4gCj4gPiBkaWZmIC0tZ2l0IGEvZnMveGZzL2xpYnhm cy94ZnNfYWxsb2MuYyBiL2ZzL3hmcy9saWJ4ZnMveGZzX2FsbG9jLmMKPiA+IGluZGV4IGUyYmRm MDg5YzBhMy4uNjI2MTU5OWJiMzg5IDEwMDY0NAo+ID4gLS0tIGEvZnMveGZzL2xpYnhmcy94ZnNf YWxsb2MuYwo+ID4gKysrIGIvZnMveGZzL2xpYnhmcy94ZnNfYWxsb2MuYwo+ID4gQEAgLTE1MjAs NyArMTUyMCw3IEBAIHhmc19hbGxvY19hZ192ZXh0ZW50X2xhc3RibG9jaygKPiA+ICAKPiA+ICAj aWZkZWYgREVCVUcKPiA+ICAJLyogUmFuZG9tbHkgZG9uJ3QgZXhlY3V0ZSB0aGUgZmlyc3QgYWxn b3JpdGhtLiAqLwo+ID4gLQlpZiAocHJhbmRvbV91MzIoKSAmIDEpCj4gPiArCWlmIChwcmFuZG9t X3UzMl9tYXgoMikpCj4gCj4gSSB3b25kZXIgaWYgdGhlc2UgdXNlY2FzZXMgKHBpY2tpbmcgMCBv ciAxIHJhbmRvbWx5KSBvdWdodCB0byBoYXZlIGEKPiB0cml2aWFsIHdyYXBwZXIgdG8gbWFrZSBp dCBtb3JlIG9idmlvdXMgdGhhdCB3ZSB3YW50IGJvb2xlYW4gc2VtYW50aWNzOgo+IAo+IHN0YXRp YyBpbmxpbmUgYm9vbCBwcmFuZG9tX2Jvb2wodm9pZCkKPiB7Cj4gCXJldHVybiBwcmFuZG9tX3Uz Ml9tYXgoMik7Cj4gfQo+IAo+IAlpZiAocHJhbmRvbV9ib29sKCkpCj4gCQl1c2VfY3JhenlfYWxn b3JpdGhtKC4uLik7Cj4gCgpZZWEsIEkndmUgaGFkIGEgbG90IG9mIHNpbWlsYXIgaWRlYXMgdGhl cmUuIFBhcnQgb2YgZG9pbmcgdGhpcyAoaW5pdGlhbCkKcGF0Y2hzZXQgaXMgdG8gZ2V0IGFuIGlu dHVpdGl2ZSBzZW5zZSBvZiB3aGF0J3MgYWN0dWFsbHkgdXNlZCBhbmQgaG93Cm9mdGVuLiBPbiBt eSBsaXN0IGZvciBpbnZlc3RpZ2F0aW9uIGFyZSBhIGdldF9yYW5kb21fdTMyX21heCgpIHRvIHJl dHVybgp1bmlmb3JtIG51bWJlcnMgYnkgcmVqZWN0aW9uIHNhbXBsaW5nIChwcmFuZG9tX3UzMl9t YXgoKSBkb2Vzbid0IGRvCnRoYXQgdW5pZm9ybWx5KSBhbmQgYWRkaW5nIGEgZnVuY3Rpb24gZm9y IGJvb2xlYW5zIG9yIGJpdHMgPCA4LiBQb3NzaWJsZQppZGVhcyBmb3IgdGhlIGxhdHRlciBpbmNs dWRlOgoKICAgYm9vbCBnZXRfcmFuZG9tX2Jvb2wodm9pZCk7CiAgIGJvb2wgZ2V0X3JhbmRvbV9i b29sKHVuc2lnbmVkIGludCBwcm9iYWJpbGl0eSk7CiAgIGJvb2wgZ2V0X3JhbmRvbV9iaXRzKHU4 IGJpdHNfbGVzc190aGFuX2VpZ2h0KTsKCldpdGggdGhlIGNvcmUgb2YgYWxsIG9mIHRob3NlIGlu dm9sdmluZyB0aGUgc2FtZSBiYXRjaGluZyBhcyB0aGUgY3VycmVudApnZXRfcmFuZG9tX3V7OCwx NiwzMiw2NH0oKSBmdW5jdGlvbnMsIGJ1dCBhbHNvIGJ1ZmZlcmluZyB0aGUgbGF0ZXN0IGJ5dGUK YW5kIG1hbmFnaW5nIGhvdyBtYW55IGJpdHMgYXJlIGxlZnQgaW4gaXQgdGhhdCBoYXZlbid0IGJl ZW4gc2hpZnRlZCBvdXQKeWV0LgoKU28gQVBJLXdpc2UsIHRoZXJlIGFyZSBhIGZldyB3YXlzIHRv IGdvLCBzbyBob3BlZnVsbHkgdGhpcyBzZXJpZXMgd2lsbApzdGFydCB0byBnaXZlIGEgZ29vZCBw aWN0dXJlIG9mIHdoYXQncyBuZWVkZWQuCgpPbmUgdGhpbmcgSSd2ZSBub3RpY2VkIGlzIHRoYXQg bW9zdCBvZiB0aGUgcHJhbmRvbV91MzJfbWF4KDIpCmludm9jYXRpb25zIGFyZSBpbiBkZWJ1ZyBv ciB0ZXN0IGNvZGUsIHNvIHRoYXQgZG9lc24ndCBuZWVkIHRvIGJlCm9wdGltaXplZC4gQnV0IGtm ZW5jZSBkb2VzIHRoYXQgdG9vIGluIGl0cyBob3QgcGF0aCwgc28gYQpnZXRfcmFuZG9tX2Jvb2wo KSBmdW5jdGlvbiB0aGVyZSB3b3VsZCBpbiB0aGVvcnkgbGVhZCB0byBhbiA4eCBzcGVlZC11cC4K QnV0IEkgZ3Vlc3MgSSBqdXN0IGhhdmUgdG8gdHJ5IHNvbWUgdGhpbmdzIGFuZCBzZWUuCgpBbnl3 YXksIHRoYXQgaXMgYSBsb25nIHdheSB0byBzYXksIEkgc2hhcmUgeW91IGN1cmlvc2l0eSBvbiB0 aGUgbWF0dGVyCmFuZCBJJ20gbG9va2luZyBpbnRvIGl0LgoKSmFzb24KCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eCBNVEQgZGlzY3Vz c2lvbiBtYWlsaW5nIGxpc3QKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0 aW5mby9saW51eC1tdGQvCg==