41 struct rctx {  struct
101 	struct rctx *rctx = skcipher_request_ctx(req);  in post_crypt()  local
102 	le128 *buf = rctx->ext ?: rctx->buf;  in post_crypt()
110 	subreq = &rctx->subreq;  in post_crypt()
127 	rctx->left -= subreq->cryptlen;  in post_crypt()
129 	if (err || !rctx->left)  in post_crypt()
132 	rctx->dst = rctx->dstbuf;  in post_crypt()
138 	if (rctx->dst != sg) {  in post_crypt()
139 		rctx->dst[0] = *sg;  in post_crypt()
140 		sg_unmark_end(rctx->dst);  in post_crypt()
141 		scatterwalk_crypto_chain(rctx->dst, sg_next(sg), 2);  in post_crypt()
143 	rctx->dst[0].length -= offset - sg->offset;  in post_crypt()
144 	rctx->dst[0].offset = offset;  in post_crypt()
152 	struct rctx *rctx = skcipher_request_ctx(req);  in pre_crypt()  local
153 	le128 *buf = rctx->ext ?: rctx->buf;  in pre_crypt()
163 	subreq = &rctx->subreq;  in pre_crypt()
166 	more = rctx->left > cryptlen;  in pre_crypt()
168 		cryptlen = rctx->left;  in pre_crypt()
170 	skcipher_request_set_crypt(subreq, rctx->src, rctx->dst,  in pre_crypt()
184 			*buf++ = rctx->t;  in pre_crypt()
185 			le128_xor(wdst++, &rctx->t, wsrc++);  in pre_crypt()
186 			gf128mul_x_ble(&rctx->t, &rctx->t);  in pre_crypt()
192 	skcipher_request_set_crypt(subreq, rctx->dst, rctx->dst,  in pre_crypt()
198 	rctx->src = rctx->srcbuf;  in pre_crypt()
204 	if (rctx->src != sg) {  in pre_crypt()
205 		rctx->src[0] = *sg;  in pre_crypt()
206 		sg_unmark_end(rctx->src);  in pre_crypt()
207 		scatterwalk_crypto_chain(rctx->src, sg_next(sg), 2);  in pre_crypt()
209 	rctx->src[0].length -= offset - sg->offset;  in pre_crypt()
210 	rctx->src[0].offset = offset;  in pre_crypt()
219 	struct rctx *rctx = skcipher_request_ctx(req);  in init_crypt()  local
223 	subreq = &rctx->subreq;  in init_crypt()
229 	rctx->ext = NULL;  in init_crypt()
235 		rctx->ext = kmalloc(n, gfp);  in init_crypt()
236 		if (rctx->ext)  in init_crypt()
240 	rctx->src = req->src;  in init_crypt()
241 	rctx->dst = req->dst;  in init_crypt()
242 	rctx->left = req->cryptlen;  in init_crypt()
245 	crypto_cipher_encrypt_one(ctx->tweak, (u8 *)&rctx->t, req->iv);  in init_crypt()
252 	struct rctx *rctx = skcipher_request_ctx(req);  in exit_crypt()  local
254 	rctx->left = 0;  in exit_crypt()
256 	if (rctx->ext)  in exit_crypt()
257 		kzfree(rctx->ext);  in exit_crypt()
262 	struct rctx *rctx = skcipher_request_ctx(req);  in do_encrypt()  local
265 	subreq = &rctx->subreq;  in do_encrypt()
267 	while (!err && rctx->left) {  in do_encrypt()
284 	struct rctx *rctx;  in encrypt_done()  local
286 	rctx = skcipher_request_ctx(req);  in encrypt_done()
289 		if (rctx->left != req->cryptlen)  in encrypt_done()
294 	subreq = &rctx->subreq;  in encrypt_done()
298 	if (rctx->left)  in encrypt_done()
312 	struct rctx *rctx = skcipher_request_ctx(req);  in do_decrypt()  local
315 	subreq = &rctx->subreq;  in do_decrypt()
317 	while (!err && rctx->left) {  in do_decrypt()
334 	struct rctx *rctx;  in decrypt_done()  local
336 	rctx = skcipher_request_ctx(req);  in decrypt_done()
339 		if (rctx->left != req->cryptlen)  in decrypt_done()
344 	subreq = &rctx->subreq;  in decrypt_done()
348 	if (rctx->left)  in decrypt_done()
383 					 sizeof(struct rctx));  in init_tfm()