packet03: fix a build warning

aspsk · aspsk · commit 4df17c7afdf1 · 2019-08-01T01:28:29.000Z
Fix the following build warning:

    xdp_prog_user.c: In function ‘parse_mac’:
    xdp_prog_user.c:57:1: warning: no return statement in function returning non-void [-Wreturn-type]
     }
     ^

Signed-off-by: Anton Protopopov &lt;a.s.protopopov@gmail.com&gt;
diff --git a/packet03-redirecting/xdp_prog_user.c b/packet03-redirecting/xdp_prog_user.c
@@ -54,6 +54,8 @@ static int parse_mac(char *str, unsigned char mac[ETH_ALEN])
 {
 	/* Assignment 3: parse a MAC address in this function and place the
 	 * result in the mac array */
+
+	return 0;
 }
 
 static int write_iface_params(int map_fd, unsigned char *src, unsigned char *dest)

Original file line number	Diff line number	Diff line change
`@@ -54,6 +54,8 @@ static int parse_mac(char *str, unsigned char mac[ETH_ALEN])`
`54`	`54`	`{`
`55`	`55`	`/* Assignment 3: parse a MAC address in this function and place the`
`56`	`56`	`* result in the mac array */`
	`57`	`+`
	`58`	`+ return 0;`
`57`	`59`	`}`
`58`	`60`
`59`	`61`	`static int write_iface_params(int map_fd, unsigned char src, unsigned char dest)`