net: mark read-only arrays as const

String literals are constant, and usually, we can also tag the array
of pointers const too, moving it to the .rodata section.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index f97be47..be47ac427 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -143,7 +143,7 @@
 	return 0;
 }
 
-static char *llc_conn_state_names[] = {
+static const char *const llc_conn_state_names[] = {
 	[LLC_CONN_STATE_ADM] =        "adm",
 	[LLC_CONN_STATE_SETUP] =      "setup",
 	[LLC_CONN_STATE_NORMAL] =     "normal",