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PPP: set protocol_list[] const

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This array is a constant list of protocols, save some ram space by
adding the const modifier it deserves.
This commit is contained in:
Sylvain Rochet 2016-11-06 20:00:31 +01:00
parent 1e6c4ac017
commit c4eb52dcff
1 changed files with 2 additions and 2 deletions
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4
src/netif/ppp/ppp.c
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@ -1447,7 +1447,7 @@ int get_loop_output(void) {
struct protocol_list {
u_short proto;
const char *name;
} protocol_list[] = {
} const protocol_list[] = {
{ 0x21, "IP" },
{ 0x23, "OSI Network Layer" },
{ 0x25, "Xerox NS IDP" },
@ -1582,7 +1582,7 @@ struct protocol_list {
* protocol_name - find a name for a PPP protocol.
*/
const char * protocol_name(int proto) {
struct protocol_list *lp;
const struct protocol_list *lp;
for (lp = protocol_list; lp->proto != 0; ++lp) {
if (proto == lp->proto) {