[PATCH v4 8/8] fscrypt: Add HCTR2 support for filename encryption

[Eric Biggers]

On Tue, Apr 12, 2022 at 05:28:16PM +0000, Nathan Huckleberry wrote:
> diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
> index eede186b04ce..ae24b581d3d7 100644
> --- a/fs/crypto/keysetup.c
> +++ b/fs/crypto/keysetup.c
> @@ -53,6 +53,13 @@ struct fscrypt_mode fscrypt_modes[] = {
>  		.ivsize = 32,
>  		.blk_crypto_mode = BLK_ENCRYPTION_MODE_ADIANTUM,
>  	},
> +	[FSCRYPT_MODE_AES_256_HCTR2] = {
> +		.friendly_name = "HCTR2",

Can you use "AES-256-HCTR2" here instead of just "HCTR2"?  This would be similar
to how FSCRYPT_MODE_AES_256_XTS uses .friendly_name = "AES-256-XTS".

- Eric