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Commit c2e022cb authored by Cong Wang's avatar Cong Wang Committed by Cong Wang
Browse files

dm: remove the second argument of k[un]map_atomic() 



Acked-by: default avatarMilan Broz <mbroz@redhat.com>
Signed-off-by: default avatarCong Wang <amwang@redhat.com>
parent c58e0377

drivers/md/dm-crypt.c

+4 −4
Original line number Diff line number Diff line
@@ -590,9 +590,9 @@ static int crypt_iv_lmk_gen(struct crypt_config *cc, u8 *iv, 
	int r = 0;



	if (bio_data_dir(dmreq->ctx->bio_in) == WRITE) {

		src = kmap_atomic(sg_page(&dmreq->sg_in), KM_USER0);

		src = kmap_atomic(sg_page(&dmreq->sg_in));

		r = crypt_iv_lmk_one(cc, iv, dmreq, src + dmreq->sg_in.offset);

		kunmap_atomic(src, KM_USER0);

		kunmap_atomic(src);

	} else

		memset(iv, 0, cc->iv_size);
@@ -608,14 +608,14 @@ static int crypt_iv_lmk_post(struct crypt_config *cc, u8 *iv, 
	if (bio_data_dir(dmreq->ctx->bio_in) == WRITE)

		return 0;



	dst = kmap_atomic(sg_page(&dmreq->sg_out), KM_USER0);

	dst = kmap_atomic(sg_page(&dmreq->sg_out));

	r = crypt_iv_lmk_one(cc, iv, dmreq, dst + dmreq->sg_out.offset);



	/* Tweak the first block of plaintext sector */

	if (!r)

		crypto_xor(dst + dmreq->sg_out.offset, iv, cc->iv_size);



	kunmap_atomic(dst, KM_USER0);

	kunmap_atomic(dst);

	return r;

}