[Linuxptp-devel] [PATCHv1 1/4] rtnl: Fix rtnl_rtattr_parse() to process max attribute.

[Miroslav L. <mli...@re...>]

Initialize the whole array passed to rtnl_rtattr_parse() and don't
ignore the last attribute with the maximum value. This will be needed to
get the ETHTOOL_A_PHC_VCLOCKS_INDEX attribute.

Signed-off-by: Miroslav Lichvar <mli...@re...>
Acked-by: Hangbin Liu <liu...@gm...>
---
 rtnl.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/rtnl.c b/rtnl.c
index fe625d6..f8bdbe6 100644
--- a/rtnl.c
+++ b/rtnl.c
@@ -178,10 +178,10 @@ static int rtnl_rtattr_parse(struct rtattr *tb[], int max, struct rtattr *rta, i
 {
 	unsigned short type;
 
-	memset(tb, 0, sizeof(struct rtattr *) * max);
+	memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
 	while (RTA_OK(rta, len)) {
 		type = rta->rta_type;
-		if ((type < max) && (!tb[type]))
+		if ((type <= max) && (!tb[type]))
 			tb[type] = rta;
 		rta = RTA_NEXT(rta, len);
 	}
@@ -200,8 +200,8 @@ static inline int rtnl_nested_rtattr_parse(struct rtattr *tb[], int max, struct
 
 static int rtnl_linkinfo_parse(int master_index, struct rtattr *rta)
 {
-	struct rtattr *linkinfo[IFLA_INFO_MAX];
-	struct rtattr *bond[IFLA_BOND_MAX];
+	struct rtattr *linkinfo[IFLA_INFO_MAX+1];
+	struct rtattr *bond[IFLA_BOND_MAX+1];
 	int index = -1;
 	char *kind;
 
-- 
2.34.1