diff mbox series

[net-next,v2,08/10] genetlink: use parsed attrs in dumppolicy

Message ID 20201001225933.1373426-9-kuba@kernel.org
State Superseded
Headers show
Series genetlink: support per-command policy dump | expand

Commit Message

Jakub Kicinski Oct. 1, 2020, 10:59 p.m. UTC 
Attributes are already parsed based on the policy specified
in the family and ready-to-use in info->attrs. No need to
call genlmsg_parse() again.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/netlink/genetlink.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

Comments

Johannes Berg Oct. 2, 2020, 6:30 a.m. UTC | #1 
On Thu, 2020-10-01 at 15:59 -0700, Jakub Kicinski wrote:
> Attributes are already parsed based on the policy specified
> in the family and ready-to-use in info->attrs. No need to
> call genlmsg_parse() again.

:)

Reviewed-by: Johannes Berg <johannes@sipsolutions.net>

johannes
diff mbox series

Patch

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 2a3608cfb179..9e50a8e4abf9 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -1117,18 +1117,13 @@  struct ctrl_dump_policy_ctx {
 
 static int ctrl_dumppolicy_start(struct netlink_callback *cb)
 {
+	const struct genl_dumpit_info *info = genl_dumpit_info(cb);
 	struct ctrl_dump_policy_ctx *ctx = (void *)cb->ctx;
-	struct nlattr *tb[CTRL_ATTR_MAX + 1];
+	struct nlattr **tb = info->attrs;
 	const struct genl_family *rt;
-	int err;
 
 	BUILD_BUG_ON(sizeof(*ctx) > sizeof(cb->ctx));
 
-	err = genlmsg_parse(cb->nlh, &genl_ctrl, tb, genl_ctrl.maxattr,
-			    genl_ctrl.policy, cb->extack);
-	if (err)
-		return err;
-
 	if (!tb[CTRL_ATTR_FAMILY_ID] && !tb[CTRL_ATTR_FAMILY_NAME])
 		return -EINVAL;