100     struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);  in p8_ghash_init()  local
102     dctx->bytes = 0;  in p8_ghash_init()
103     memset(dctx->shash, 0, GHASH_DIGEST_SIZE);  in p8_ghash_init()
104     dctx->fallback_desc.tfm = ctx->fallback;  in p8_ghash_init()
105     dctx->fallback_desc.flags = desc->flags;  in p8_ghash_init()
106     return crypto_shash_init(&dctx->fallback_desc);  in p8_ghash_init()
131     struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);  in p8_ghash_update()  local
134         return crypto_shash_update(&dctx->fallback_desc, src, srclen);  in p8_ghash_update()
136         if (dctx->bytes) {  in p8_ghash_update()
137             if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) {  in p8_ghash_update()
138                 memcpy(dctx->buffer + dctx->bytes, src, srclen);  in p8_ghash_update()
139                 dctx->bytes += srclen;  in p8_ghash_update()
142             memcpy(dctx->buffer + dctx->bytes, src,  in p8_ghash_update()
143                     GHASH_DIGEST_SIZE - dctx->bytes);  in p8_ghash_update()
148             gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer,  in p8_ghash_update()
151             src += GHASH_DIGEST_SIZE - dctx->bytes;  in p8_ghash_update()
152             srclen -= GHASH_DIGEST_SIZE - dctx->bytes;  in p8_ghash_update()
153             dctx->bytes = 0;  in p8_ghash_update()
161             gcm_ghash_p8(dctx->shash, ctx->htable, src, len);  in p8_ghash_update()
167             memcpy(dctx->buffer, src, srclen);  in p8_ghash_update()
168             dctx->bytes = srclen;  in p8_ghash_update()
178     struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);  in p8_ghash_final()  local
181         return crypto_shash_final(&dctx->fallback_desc, out);  in p8_ghash_final()
183         if (dctx->bytes) {  in p8_ghash_final()
184             for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++)  in p8_ghash_final()
185                 dctx->buffer[i] = 0;  in p8_ghash_final()
190             gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer,  in p8_ghash_final()
193             dctx->bytes = 0;  in p8_ghash_final()
195         memcpy(out, dctx->shash, GHASH_DIGEST_SIZE);  in p8_ghash_final()