30 	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);  in ccp_sha_complete()  local
36 	if (rctx->hash_rem) {  in ccp_sha_complete()
38 		unsigned int offset = rctx->nbytes - rctx->hash_rem;  in ccp_sha_complete()
40 		scatterwalk_map_and_copy(rctx->buf, rctx->src,  in ccp_sha_complete()
41 					 offset, rctx->hash_rem, 0);  in ccp_sha_complete()
42 		rctx->buf_count = rctx->hash_rem;  in ccp_sha_complete()
44 		rctx->buf_count = 0;  in ccp_sha_complete()
49 		memcpy(req->result, rctx->ctx, digest_size);  in ccp_sha_complete()
52 	sg_free_table(&rctx->data_sg);  in ccp_sha_complete()
62 	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);  in ccp_do_sha_update()  local
71 	len = (u64)rctx->buf_count + (u64)nbytes;  in ccp_do_sha_update()
74 		scatterwalk_map_and_copy(rctx->buf + rctx->buf_count, req->src,  in ccp_do_sha_update()
76 		rctx->buf_count += nbytes;  in ccp_do_sha_update()
81 	rctx->src = req->src;  in ccp_do_sha_update()
82 	rctx->nbytes = nbytes;  in ccp_do_sha_update()
84 	rctx->final = final;  in ccp_do_sha_update()
85 	rctx->hash_rem = final ? 0 : len & (block_size - 1);  in ccp_do_sha_update()
86 	rctx->hash_cnt = len - rctx->hash_rem;  in ccp_do_sha_update()
87 	if (!final && !rctx->hash_rem) {  in ccp_do_sha_update()
89 		rctx->hash_cnt -= block_size;  in ccp_do_sha_update()
90 		rctx->hash_rem = block_size;  in ccp_do_sha_update()
94 	sg_init_one(&rctx->ctx_sg, rctx->ctx, sizeof(rctx->ctx));  in ccp_do_sha_update()
97 	if (rctx->buf_count && nbytes) {  in ccp_do_sha_update()
104 		ret = sg_alloc_table(&rctx->data_sg, sg_count, gfp);  in ccp_do_sha_update()
108 		sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);  in ccp_do_sha_update()
109 		sg = ccp_crypto_sg_table_add(&rctx->data_sg, &rctx->buf_sg);  in ccp_do_sha_update()
114 		sg = ccp_crypto_sg_table_add(&rctx->data_sg, req->src);  in ccp_do_sha_update()
121 		sg = rctx->data_sg.sgl;  in ccp_do_sha_update()
122 	} else if (rctx->buf_count) {  in ccp_do_sha_update()
123 		sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);  in ccp_do_sha_update()
125 		sg = &rctx->buf_sg;  in ccp_do_sha_update()
130 	rctx->msg_bits += (rctx->hash_cnt << 3);	/* Total in bits */  in ccp_do_sha_update()
132 	memset(&rctx->cmd, 0, sizeof(rctx->cmd));  in ccp_do_sha_update()
133 	INIT_LIST_HEAD(&rctx->cmd.entry);  in ccp_do_sha_update()
134 	rctx->cmd.engine = CCP_ENGINE_SHA;  in ccp_do_sha_update()
135 	rctx->cmd.u.sha.type = rctx->type;  in ccp_do_sha_update()
136 	rctx->cmd.u.sha.ctx = &rctx->ctx_sg;  in ccp_do_sha_update()
137 	rctx->cmd.u.sha.ctx_len = sizeof(rctx->ctx);  in ccp_do_sha_update()
138 	rctx->cmd.u.sha.src = sg;  in ccp_do_sha_update()
139 	rctx->cmd.u.sha.src_len = rctx->hash_cnt;  in ccp_do_sha_update()
140 	rctx->cmd.u.sha.opad = ctx->u.sha.key_len ?  in ccp_do_sha_update()
142 	rctx->cmd.u.sha.opad_len = ctx->u.sha.key_len ?  in ccp_do_sha_update()
144 	rctx->cmd.u.sha.first = rctx->first;  in ccp_do_sha_update()
145 	rctx->cmd.u.sha.final = rctx->final;  in ccp_do_sha_update()
146 	rctx->cmd.u.sha.msg_bits = rctx->msg_bits;  in ccp_do_sha_update()
148 	rctx->first = 0;  in ccp_do_sha_update()
150 	ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd);  in ccp_do_sha_update()
155 	sg_free_table(&rctx->data_sg);  in ccp_do_sha_update()
164 	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);  in ccp_sha_init()  local
170 	memset(rctx, 0, sizeof(*rctx));  in ccp_sha_init()
172 	rctx->type = alg->type;  in ccp_sha_init()
173 	rctx->first = 1;  in ccp_sha_init()
177 		memcpy(rctx->buf, ctx->u.sha.ipad, block_size);  in ccp_sha_init()
178 		rctx->buf_count = block_size;  in ccp_sha_init()
212 	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);  in ccp_sha_export()  local
218 	state.type = rctx->type;  in ccp_sha_export()
219 	state.msg_bits = rctx->msg_bits;  in ccp_sha_export()
220 	state.first = rctx->first;  in ccp_sha_export()
221 	memcpy(state.ctx, rctx->ctx, sizeof(state.ctx));  in ccp_sha_export()
222 	state.buf_count = rctx->buf_count;  in ccp_sha_export()
223 	memcpy(state.buf, rctx->buf, sizeof(state.buf));  in ccp_sha_export()
233 	struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);  in ccp_sha_import()  local
239 	memset(rctx, 0, sizeof(*rctx));  in ccp_sha_import()
240 	rctx->type = state.type;  in ccp_sha_import()
241 	rctx->msg_bits = state.msg_bits;  in ccp_sha_import()
242 	rctx->first = state.first;  in ccp_sha_import()
243 	memcpy(rctx->ctx, state.ctx, sizeof(rctx->ctx));  in ccp_sha_import()
244 	rctx->buf_count = state.buf_count;  in ccp_sha_import()
245 	memcpy(rctx->buf, state.buf, sizeof(rctx->buf));  in ccp_sha_import()