net: lib: coap: Reduce CoAP server stack usage

Declare the CoAP server receiving buffer as static to lower the stack usage. Signed-off-by: Pieter De Gendt <[email protected]>
zephyrproject-rtos · Feb 2, 2024 · 0bc1a2b · 0bc1a2b
1 parent a97c825
commit 0bc1a2b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/subsys/net/lib/coap/coap_server.c b/subsys/net/lib/coap/coap_server.c
@@ -127,7 +127,8 @@ static int coap_service_remove_observer(const struct coap_service *service,
 
 static int coap_server_process(int sock_fd)
 {
-	uint8_t buf[CONFIG_COAP_SERVER_MESSAGE_SIZE];
+	static uint8_t buf[CONFIG_COAP_SERVER_MESSAGE_SIZE];
+
 	struct sockaddr client_addr;
 	socklen_t client_addr_len = sizeof(client_addr);
 	struct coap_service *service = NULL;