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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" , 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 , "Darrick J . Wong" Subject: Re: [PATCH v6 1/7] treewide: use prandom_u32_max() when possible, part 1 Message-ID: References: <20221010230613.1076905-1-Jason@zx2c4.com> <20221010230613.1076905-2-Jason@zx2c4.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20221010230613.1076905-2-Jason@zx2c4.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: e2CZuGMXbt8P1Ahw-KHczcjQF2nFCX-z X-Proofpoint-ORIG-GUID: wAGriSa-6j8SChamwbK6r6GTq7mVMlOg X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-10-11_03,2022-10-10_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 clxscore=1011 mlxscore=0 spamscore=0 mlxlogscore=427 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210110053 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Oct 10, 2022 at 05:06:07PM -0600, Jason A. Donenfeld wrote: > Rather than incurring a division or requesting too many random bytes for > the given range, use the prandom_u32_max() function, which only takes > the minimum required bytes from the RNG and avoids divisions. This was ... > Reviewed-by: Greg Kroah-Hartman > Reviewed-by: Kees Cook > Reviewed-by: Yury Norov > Reviewed-by: KP Singh > Reviewed-by: Jan Kara # for ext4 and sbitmap > Reviewed-by: Christoph Böhmwalder # for drbd > Acked-by: Ulf Hansson # for mmc > Acked-by: Darrick J. Wong # for xfs > Signed-off-by: Jason A. Donenfeld > --- > arch/s390/kernel/process.c | 2 +- > arch/s390/kernel/vdso.c | 2 +- For s390: Acked-by: Heiko Carstens