[PATCH v4 1/8] crypto: xctr - Add XCTR support

[Eric Biggers]

On Tue, Apr 12, 2022 at 05:28:09PM +0000, Nathan Huckleberry wrote:
> +// Limited to 16-byte blocks for simplicity
> +#define XCTR_BLOCKSIZE 16

Make it clear that this is talking about the current implementation, not XCTR
itself.  E.g.:

/* For now this implementation is limited to 16-byte blocks for simplicity. */
#define XCTR_BLOCKSIZE 16

> +static int crypto_xctr_crypt_segment(struct skcipher_walk *walk,
> +				    struct crypto_cipher *tfm, u32 byte_ctr)
> +{
> +	void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
> +		   crypto_cipher_alg(tfm)->cia_encrypt;
> +	u8 *src = walk->src.virt.addr;
> +	u8 *dst = walk->dst.virt.addr;

'src' can be const.

- Eric