net_sched: use explicit size of struct tcmsg, remove need to declare tcm

Pointer tcm is being initialized and is never read, it is only being used
to determine the size of struct tcmsg.  Clean this up by removing
variable tcm and explicitly using the sizeof struct tcmsg rather than *tcm.
Cleans up clang warning:

warning: Value stored to 'tcm' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c6deb74e3d2f4a007554b9cf78e4ddf7b7b84535..aa82116ed10c560e35dc7af8618ef16762428181 100644 (file)
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1500,7 +1500,6 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
        int s_idx, s_q_idx;
        struct net_device *dev;
        const struct nlmsghdr *nlh = cb->nlh;
-       struct tcmsg *tcm = nlmsg_data(nlh);
        struct nlattr *tca[TCA_MAX + 1];
        int err;
 
@@ -1510,7 +1509,7 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
        idx = 0;
        ASSERT_RTNL();
 
-       err = nlmsg_parse(nlh, sizeof(*tcm), tca, TCA_MAX, NULL, NULL);
+       err = nlmsg_parse(nlh, sizeof(struct tcmsg), tca, TCA_MAX, NULL, NULL);
        if (err < 0)
                return err;