50 	struct hgsmi_buffer_header *h;  in hgsmi_buffer_alloc()  local
55 	total_size = size + sizeof(*h) + sizeof(*t);  in hgsmi_buffer_alloc()
56 	h = gen_pool_dma_alloc(guest_pool, total_size, &offset);  in hgsmi_buffer_alloc()
57 	if (!h)  in hgsmi_buffer_alloc()
60 	t = (struct hgsmi_buffer_tail *)((u8 *)h + sizeof(*h) + size);  in hgsmi_buffer_alloc()
62 	h->flags = HGSMI_BUFFER_HEADER_F_SEQ_SINGLE;  in hgsmi_buffer_alloc()
63 	h->data_size = size;  in hgsmi_buffer_alloc()
64 	h->channel = channel;  in hgsmi_buffer_alloc()
65 	h->channel_info = channel_info;  in hgsmi_buffer_alloc()
66 	memset(&h->u.header_data, 0, sizeof(h->u.header_data));  in hgsmi_buffer_alloc()
69 	t->checksum = hgsmi_checksum(offset, h, t);  in hgsmi_buffer_alloc()
71 	return (u8 *)h + sizeof(*h);  in hgsmi_buffer_alloc()
76 	struct hgsmi_buffer_header *h =  in hgsmi_buffer_free()  local
77 		(struct hgsmi_buffer_header *)((u8 *)buf - sizeof(*h));  in hgsmi_buffer_free()
78 	size_t total_size = h->data_size + sizeof(*h) +  in hgsmi_buffer_free()
81 	gen_pool_free(guest_pool, (unsigned long)h, total_size);  in hgsmi_buffer_free()