Re: [PATCH v3] random: make more consistent use of integer types

From: Eric Biggers
Date: Mon Feb 21 2022 - 14:15:24 EST


On Mon, Feb 21, 2022 at 04:05:23PM +0100, Jason A. Donenfeld wrote:
> We've been using a flurry of int, unsigned int, size_t, and ssize_t.
> Let's unify all of this into size_t where it makes sense, as it does in
> most places, and leave ssize_t for return values with possible errors.
>
> In addition, keeping with the convention of other functions in this
> file, functions that are dealing with raw bytes now take void *
> consistently instead of a mix of that and u8 *, because much of the time
> we're actually passing some other structure that is then interpreted as
> bytes by the function.
>
> We also take the opportunity to fix the outdated and incorrect comment
> in get_random_bytes_arch().
>
> Cc: Theodore Ts'o <tytso@xxxxxxx>
> Reviewed-by: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Jann Horn <jannh@xxxxxxxxxx>
> Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
> ---
> v3 changes a u8* into a const u8* and makes the rand_initialize loop
> count up from 0, per Eric's request.
>
> drivers/char/random.c | 123 +++++++++++++++-------------------
> include/linux/hw_random.h | 2 +-
> include/linux/random.h | 10 +--
> include/trace/events/random.h | 79 +++++++++++-----------
> 4 files changed, 99 insertions(+), 115 deletions(-)

Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>

- Eric