zstd_decompress_dctx
out_len = zstd_decompress_dctx(ctx->dctx, dst, req->dlen, src, req->slen);
len = zstd_decompress_dctx(ctx, out_buf, out_size, in_buffer, in_size);
ret = zstd_decompress_dctx(zctx->dctx, req->dst, req->dst_len,
ret = zstd_decompress_dctx(dctx, out, outlen, _gzdata_start,
size_t zstd_decompress_dctx(zstd_dctx *dctx, void *dst, size_t dst_capacity,
ret = zstd_decompress_dctx(dctx, out_buf, out_len, in_buf, in_len);
EXPORT_SYMBOL(zstd_decompress_dctx);
out_len = zstd_decompress_dctx(ctx, dst, dlen, src, slen);