Re: [PATCH v6 1/7] treewide: use prandom_u32_max() when possible, part 1
From: Heiko Carstens <hca@linux.ibm.com>
Date: 2022-10-11 10:00:24
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dri-devel, kernel-janitors, linux-block, linux-crypto, linux-doc, linux-fsdevel, linux-media, linux-mips, linux-mm, linux-mmc, linux-nvme, linux-patches, linux-rdma, linux-s390, linux-um, linux-usb, linux-wireless, linuxppc-dev, lkml, loongarch, sparclinux
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 <gregkh@linuxfoundation.org> Reviewed-by: Kees Cook <redacted> Reviewed-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: KP Singh <kpsingh@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 and sbitmap Reviewed-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> # for drbd Acked-by: Ulf Hansson <redacted> # for mmc Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> --- arch/s390/kernel/process.c | 2 +- arch/s390/kernel/vdso.c | 2 +-
For s390: Acked-by: Heiko Carstens <hca@linux.ibm.com>