[RFC v2 04/13] x86/mm: Add helper functions for MKTME memory encryption keys

[Peter Zijlstra]

On Mon, Dec 03, 2018 at 11:39:51PM -0800, Alison Schofield wrote:
> +int mktme_map_keyid_from_key(void *key)
> +{
> +	int i;
> +
> +	for (i = 1; i <= mktme_nr_keyids; i++)
> +		if (mktme_map->key[i] == key)
> +			return i;

CodingStyle

> +	return 0;
> +}
> +int mktme_map_get_free_keyid(void)
> +{
> +	int i;
> +
> +	if (mktme_map->mapped_keyids < mktme_nr_keyids) {
> +		for (i = 1; i <= mktme_nr_keyids; i++)
> +			if (mktme_map->key[i] == 0)
> +				return i;

CodingStyle

> +	}
> +	return 0;
> +}