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authorJakub Kicinski <kuba@kernel.org>2020-10-06 01:07:35 +0300
committerDavid S. Miller <davem@davemloft.net>2020-10-06 16:25:55 +0300
commitff419afa43109e05d42d75629f21d9fd87f635ea (patch)
treeaea540f88230add4ac90d08ca3d336a2a9a9deea /net/ethtool/linkinfo.c
parent5028588b62cbda74744f4f28b35f618e5b1078ef (diff)
downloadlinux-ff419afa43109e05d42d75629f21d9fd87f635ea.tar.xz
ethtool: trim policy tables
Since ethtool uses strict attribute validation there's no need to initialize all attributes in policy tables. 0 is NLA_UNSPEC which is going to be rejected. Remove the NLA_REJECTs. Similarly attributes above maxattrs are rejected, so there's no need to always size the policy tables to ETHTOOL_A_..._MAX. v2: - new patch Suggested-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool/linkinfo.c')
-rw-r--r--net/ethtool/linkinfo.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/net/ethtool/linkinfo.c b/net/ethtool/linkinfo.c
index ba66ca54b9c2..0c9161801bc7 100644
--- a/net/ethtool/linkinfo.c
+++ b/net/ethtool/linkinfo.c
@@ -16,15 +16,8 @@ struct linkinfo_reply_data {
#define LINKINFO_REPDATA(__reply_base) \
container_of(__reply_base, struct linkinfo_reply_data, base)
-const struct nla_policy
-ethnl_linkinfo_get_policy[ETHTOOL_A_LINKINFO_MAX + 1] = {
- [ETHTOOL_A_LINKINFO_UNSPEC] = { .type = NLA_REJECT },
+const struct nla_policy ethnl_linkinfo_get_policy[] = {
[ETHTOOL_A_LINKINFO_HEADER] = { .type = NLA_NESTED },
- [ETHTOOL_A_LINKINFO_PORT] = { .type = NLA_REJECT },
- [ETHTOOL_A_LINKINFO_PHYADDR] = { .type = NLA_REJECT },
- [ETHTOOL_A_LINKINFO_TP_MDIX] = { .type = NLA_REJECT },
- [ETHTOOL_A_LINKINFO_TP_MDIX_CTRL] = { .type = NLA_REJECT },
- [ETHTOOL_A_LINKINFO_TRANSCEIVER] = { .type = NLA_REJECT },
};
static int linkinfo_prepare_data(const struct ethnl_req_info *req_base,
@@ -93,15 +86,11 @@ const struct ethnl_request_ops ethnl_linkinfo_request_ops = {
/* LINKINFO_SET */
-const struct nla_policy
-ethnl_linkinfo_set_policy[ETHTOOL_A_LINKINFO_MAX + 1] = {
- [ETHTOOL_A_LINKINFO_UNSPEC] = { .type = NLA_REJECT },
+const struct nla_policy ethnl_linkinfo_set_policy[] = {
[ETHTOOL_A_LINKINFO_HEADER] = { .type = NLA_NESTED },
[ETHTOOL_A_LINKINFO_PORT] = { .type = NLA_U8 },
[ETHTOOL_A_LINKINFO_PHYADDR] = { .type = NLA_U8 },
- [ETHTOOL_A_LINKINFO_TP_MDIX] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKINFO_TP_MDIX_CTRL] = { .type = NLA_U8 },
- [ETHTOOL_A_LINKINFO_TRANSCEIVER] = { .type = NLA_REJECT },
};
int ethnl_set_linkinfo(struct sk_buff *skb, struct genl_info *info)