[PATCH v6 1/7] treewide: use prandom_u32_max() when possible, part 1

[Heiko Carstens]

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 at linuxfoundation.org>
> Reviewed-by: Kees Cook <keescook at chromium.org>
> Reviewed-by: Yury Norov <yury.norov at gmail.com>
> Reviewed-by: KP Singh <kpsingh at kernel.org>
> Reviewed-by: Jan Kara <jack at suse.cz> # for ext4 and sbitmap
> Reviewed-by: Christoph Böhmwalder <christoph.boehmwalder at linbit.com> # for drbd
> Acked-by: Ulf Hansson <ulf.hansson at linaro.org> # for mmc
> Acked-by: Darrick J. Wong <djwong at kernel.org> # for xfs
> Signed-off-by: Jason A. Donenfeld <Jason at zx2c4.com>
> ---
>  arch/s390/kernel/process.c                    |  2 +-
>  arch/s390/kernel/vdso.c                       |  2 +-

For s390:
Acked-by: Heiko Carstens <hca at linux.ibm.com>