On Wed, Jun 3, 2015, at 21:58, Tom Herbert wrote:
> +static u32 hashrnd __read_mostly;
> +static __always_inline void ila_init_secret(void)
> +{
> + net_get_random_once(&hashrnd, sizeof(hashrnd));
> +}
> +
> +static inline unsigned int ila_hash(u64 id)
> +{
> + u32 *words = (u32 *)&id;
> +
> + return jhash_2words(words[0], words[1], hashrnd);
> +}
You can put hashrnd as static variable inside ila_hash and use the
net_get_random_once directly before calling jhash, no need to initialize
the secret during kernel bootup.
Thanks,
Hannes
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