net: make sock_prot_memory_pressure() return "const char *"

Alexey Dobriyan · davem330 · commit 7a512eb865aa · 2019-10-04T14:30:23.000-07:00
This function returns string literals which are "const char *".

Signed-off-by: Alexey Dobriyan &lt;adobriyan@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/net/core/sock.c b/net/core/sock.c
@@ -3497,7 +3497,7 @@ static long sock_prot_memory_allocated(struct proto *proto)
 	return proto->memory_allocated != NULL ? proto_memory_allocated(proto) : -1L;
 }
 
-static char *sock_prot_memory_pressure(struct proto *proto)
+static const char *sock_prot_memory_pressure(struct proto *proto)
 {
 	return proto->memory_pressure != NULL ?
 	proto_memory_pressure(proto) ? "yes" : "no" : "NI";

Original file line number	Diff line number	Diff line change
`@@ -3497,7 +3497,7 @@ static long sock_prot_memory_allocated(struct proto *proto)`
`3497`	`3497`	`return proto->memory_allocated != NULL ? proto_memory_allocated(proto) : -1L;`
`3498`	`3498`	`}`
`3499`	`3499`
`3500`		`-static char sock_prot_memory_pressure(struct proto proto)`
	`3500`	`+static const char sock_prot_memory_pressure(struct proto proto)`
`3501`	`3501`	`{`
`3502`	`3502`	`return proto->memory_pressure != NULL ?`
`3503`	`3503`	`proto_memory_pressure(proto) ? "yes" : "no" : "NI";`