usb: rndis: Use offsetof macro to ease offset calculations (ca9c3ad8) · Commits · Wenxi XU / zephyr

subsys/usb/class/netusb/function_rndis.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -154,7 +154,7 @@ static int parse_rndis_header(const u8_t *buffer, u32_t buf_len)
		*/
		if (len < sys_le32_to_cpu(hdr->payload_offset) +
		sys_le32_to_cpu(hdr->payload_len) +
		(u8_t )&hdr->payload_offset - (u8_t )hdr) {
		offsetof(struct rndis_payload_packet, payload_offset)) {
		SYS_LOG_ERR("Incorrect RNDIS packet");
		return -EINVAL;
		}
		@@ -897,7 +897,7 @@ static void cmd_thread(void)
		static void rndis_hdr_add(u8_t *buf, u32_t len)
		{
		struct rndis_payload_packet hdr = (void )buf;
		u32_t offset = (u8_t )&hdr->payload_offset - (u8_t )hdr;
		u32_t offset = offsetof(struct rndis_payload_packet, payload_offset);

		memset(hdr, 0, sizeof(*hdr));