From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f182.google.com (mail-pg1-f182.google.com [209.85.215.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F021B1389 for ; Sun, 9 Oct 2022 03:41:16 +0000 (UTC) Received: by mail-pg1-f182.google.com with SMTP id u71so282208pgd.2 for ; Sat, 08 Oct 2022 20:41:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Jc9wqi9hH7sDAuXmZMPHByefEvgO0MbR3+ZEqDB7Wuk=; b=ZhbF7aukJSn3TNMRwCJkZSqm1r+X38mJ2RxvPJW6Z+9mn1TOlxypOyituNx8mz1HVC FGqxSiHSDomVzpOPFi9kka3+6Rdn9v0XaNwqyXLdtOhmQI0POv0z39c8Rsj4C7/d+KIP fJKzHg6Na0ETg2nVHR+d6vQT/rsL3lGZwlInw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Jc9wqi9hH7sDAuXmZMPHByefEvgO0MbR3+ZEqDB7Wuk=; b=fecjm0dZII5qkKEFYShWuMcH1yWzGRhiF++6v95HCarcPFu+eT/8lOUQqtKR6Y+cfW TESFYuzAXnZYJ7C8HBeCJ4jo6QPLFlZpEh1bnLeS2MyS6QD/6+t0YIk/lLaVI+buLBiA Dmx5r1yRSp8F8xx2eIG6Bnfwa8iyWffUnHTk3sfrIZqpJ+bCs/uzdo9ax4k7heSxJmw3 sXaleWLrLGv1VSPRPI5vfo6iSgFb4HWLJ406KY8kwIzeZEc5m+6TINwUjfUGAq7GbpZ1 a15VhWh07iDbWNm7OyD1UMWcgMcDagzyIPlgckxXIvtTauINXn4lsOiXKMGQxtJtjQ6O G1FQ== X-Gm-Message-State: ACrzQf3XrOsj2YC8OFv0JQ1ntixz1CBY6vmY5GV8AeWV6vevpXvcIaGh oUxEr/fdgVZ/dZbbf+VEFXGSYA== X-Google-Smtp-Source: AMsMyM5FGTaJNFEGPbumoaD5MBb6Q7fQgfiKiCpnvelFpTCgpDJD/BqrIxkvX1O2Yt8qSiE6wtg/9Q== X-Received: by 2002:a63:1a45:0:b0:439:49b4:9672 with SMTP id a5-20020a631a45000000b0043949b49672mr11177300pgm.551.1665286876512; Sat, 08 Oct 2022 20:41:16 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id h129-20020a625387000000b00561ed54aa53sm4353776pfb.97.2022.10.08.20.41.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Oct 2022 20:41:15 -0700 (PDT) Date: Sat, 8 Oct 2022 20:41:14 -0700 From: Kees Cook To: "Jason A. Donenfeld" Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, Andreas Noever , Andrew Morton , Andy Shevchenko , Borislav Petkov , Catalin Marinas , Christoph =?iso-8859-1?Q?B=F6hmwalder?= , 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 , 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 Subject: Re: [PATCH v5 0/7] treewide cleanup of random integer usage Message-ID: <202210082028.692DFA21@keescook> References: <20221008055359.286426-1-Jason@zx2c4.com> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221008055359.286426-1-Jason@zx2c4.com> On Fri, Oct 07, 2022 at 11:53:52PM -0600, Jason A. Donenfeld wrote: > This is a five part treewide cleanup of random integer handling. The > rules for random integers are: Reviewing the delta between of my .cocci rules and your v5, everything matches, except for get_random_int() conversions for files not in your tree: diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c index 7a2b2d6bc3fe..62f69589a72d 100644 --- a/drivers/gpu/drm/tests/drm_buddy_test.c +++ b/drivers/gpu/drm/tests/drm_buddy_test.c @@ -729,7 +729,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) static int drm_buddy_init_test(struct kunit *test) { while (!random_seed) - random_seed = get_random_int(); + random_seed = get_random_u32(); return 0; } diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c index 659d1af4dca7..c4b66eeae203 100644 --- a/drivers/gpu/drm/tests/drm_mm_test.c +++ b/drivers/gpu/drm/tests/drm_mm_test.c @@ -2212,7 +2212,7 @@ static void drm_test_mm_color_evict_range(struct kunit *test) static int drm_mm_init_test(struct kunit *test) { while (!random_seed) - random_seed = get_random_int(); + random_seed = get_random_u32(); return 0; } So, I guess I mean to say that "prandom: remove unused functions" is going to cause some pain. :) Perhaps don't push that to -next, and do a final pass next merge window to catch any new stuff, and then send those updates and the removal before -rc1 closes? -- Kees Cook