58 struct rctx {  struct
151 	struct rctx *rctx = skcipher_request_ctx(req);  in post_crypt()  local
152 	be128 *buf = rctx->ext ?: rctx->buf;  in post_crypt()
160 	subreq = &rctx->subreq;  in post_crypt()
177 	rctx->left -= subreq->cryptlen;  in post_crypt()
179 	if (err || !rctx->left)  in post_crypt()
182 	rctx->dst = rctx->dstbuf;  in post_crypt()
188 	if (rctx->dst != sg) {  in post_crypt()
189 		rctx->dst[0] = *sg;  in post_crypt()
190 		sg_unmark_end(rctx->dst);  in post_crypt()
191 		scatterwalk_crypto_chain(rctx->dst, sg_next(sg), 2);  in post_crypt()
193 	rctx->dst[0].length -= offset - sg->offset;  in post_crypt()
194 	rctx->dst[0].offset = offset;  in post_crypt()
203 	struct rctx *rctx = skcipher_request_ctx(req);  in pre_crypt()  local
205 	be128 *buf = rctx->ext ?: rctx->buf;  in pre_crypt()
216 	subreq = &rctx->subreq;  in pre_crypt()
220 	more = rctx->left > cryptlen;  in pre_crypt()
222 		cryptlen = rctx->left;  in pre_crypt()
224 	skcipher_request_set_crypt(subreq, rctx->src, rctx->dst,  in pre_crypt()
239 			*buf++ = rctx->t;  in pre_crypt()
240 			be128_xor(wdst++, &rctx->t, wsrc++);  in pre_crypt()
244 			be128_xor(&rctx->t, &rctx->t,  in pre_crypt()
253 	skcipher_request_set_crypt(subreq, rctx->dst, rctx->dst,  in pre_crypt()
259 	rctx->src = rctx->srcbuf;  in pre_crypt()
265 	if (rctx->src != sg) {  in pre_crypt()
266 		rctx->src[0] = *sg;  in pre_crypt()
267 		sg_unmark_end(rctx->src);  in pre_crypt()
268 		scatterwalk_crypto_chain(rctx->src, sg_next(sg), 2);  in pre_crypt()
270 	rctx->src[0].length -= offset - sg->offset;  in pre_crypt()
271 	rctx->src[0].offset = offset;  in pre_crypt()
280 	struct rctx *rctx = skcipher_request_ctx(req);  in init_crypt()  local
284 	subreq = &rctx->subreq;  in init_crypt()
289 	rctx->ext = NULL;  in init_crypt()
295 		rctx->ext = kmalloc(n, gfp);  in init_crypt()
296 		if (rctx->ext)  in init_crypt()
300 	rctx->src = req->src;  in init_crypt()
301 	rctx->dst = req->dst;  in init_crypt()
302 	rctx->left = req->cryptlen;  in init_crypt()
305 	memcpy(&rctx->t, req->iv, sizeof(rctx->t));  in init_crypt()
308 	gf128mul_64k_bbe(&rctx->t, ctx->table);  in init_crypt()
315 	struct rctx *rctx = skcipher_request_ctx(req);  in exit_crypt()  local
317 	rctx->left = 0;  in exit_crypt()
319 	if (rctx->ext)  in exit_crypt()
320 		kzfree(rctx->ext);  in exit_crypt()
325 	struct rctx *rctx = skcipher_request_ctx(req);  in do_encrypt()  local
328 	subreq = &rctx->subreq;  in do_encrypt()
330 	while (!err && rctx->left) {  in do_encrypt()
347 	struct rctx *rctx;  in encrypt_done()  local
349 	rctx = skcipher_request_ctx(req);  in encrypt_done()
352 		if (rctx->left != req->cryptlen)  in encrypt_done()
357 	subreq = &rctx->subreq;  in encrypt_done()
361 	if (rctx->left)  in encrypt_done()
375 	struct rctx *rctx = skcipher_request_ctx(req);  in do_decrypt()  local
378 	subreq = &rctx->subreq;  in do_decrypt()
380 	while (!err && rctx->left) {  in do_decrypt()
397 	struct rctx *rctx;  in decrypt_done()  local
399 	rctx = skcipher_request_ctx(req);  in decrypt_done()
402 		if (rctx->left != req->cryptlen)  in decrypt_done()
407 	subreq = &rctx->subreq;  in decrypt_done()
411 	if (rctx->left)  in decrypt_done()
437 					 sizeof(struct rctx));  in init_tfm()