Re: [PATCH 1/3] char: hw_random: Add Amlogic Meson Hardware Random Generator

From: LABBE Corentin
Date: Fri Jun 03 2016 - 05:08:14 EST


Hello

I have some minor comments below

> +config HW_RANDOM_MESON
> + tristate "Amlogic Meson Random Number Generator support"
> + depends on HW_RANDOM && ARCH_MESON

Perhaps you could change to:
depends on HW_RANDOM
depends on ARCH_MESON || COMPILE_TEST

> +
> +static int meson_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
> +{
> + struct meson_rng_data *data =
> + container_of(rng, struct meson_rng_data, rng);
> +
> + *(u32 *)buf = readl_relaxed(data->base + RNG_DATA);
> +
> + return sizeof(u32);
> +}

I think you need a test for max < sizeof(u32)

Regards

LABBE Corentin