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mptcp: pm: remove duplicated error messages
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mptcp_pm_parse_entry() and mptcp_pm_parse_addr() will already set a
error message in case of parsing issue.

Then, no need to override this error message with another less precise
one: "error parsing address".

Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
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matttbe authored and intel-lab-lkp committed Jan 6, 2025
1 parent 174032a commit 5ee2646
Showing 1 changed file with 5 additions and 15 deletions.
20 changes: 5 additions & 15 deletions net/mptcp/pm_userspace.c
Original file line number Diff line number Diff line change
Expand Up @@ -217,10 +217,8 @@ int mptcp_pm_nl_announce_doit(struct sk_buff *skb, struct genl_info *info)

addr = info->attrs[MPTCP_PM_ATTR_ADDR];
err = mptcp_pm_parse_entry(addr, info, true, &addr_val);
if (err < 0) {
GENL_SET_ERR_MSG(info, "error parsing local address");
if (err < 0)
goto announce_err;
}

if (addr_val.addr.id == 0) {
NL_SET_ERR_MSG_ATTR(info->extack, addr, "invalid addr id");
Expand Down Expand Up @@ -388,10 +386,8 @@ int mptcp_pm_nl_subflow_create_doit(struct sk_buff *skb, struct genl_info *info)

laddr = info->attrs[MPTCP_PM_ATTR_ADDR];
err = mptcp_pm_parse_entry(laddr, info, true, &entry);
if (err < 0) {
NL_SET_ERR_MSG_ATTR(info->extack, laddr, "error parsing local addr");
if (err < 0)
goto create_err;
}

if (entry.flags & MPTCP_PM_ADDR_FLAG_SIGNAL) {
NL_SET_ERR_MSG_ATTR(info->extack, laddr, "invalid addr flags");
Expand All @@ -402,10 +398,8 @@ int mptcp_pm_nl_subflow_create_doit(struct sk_buff *skb, struct genl_info *info)

raddr = info->attrs[MPTCP_PM_ATTR_ADDR_REMOTE];
err = mptcp_pm_parse_addr(raddr, info, &addr_r);
if (err < 0) {
NL_SET_ERR_MSG_ATTR(info->extack, raddr, "error parsing remote addr");
if (err < 0)
goto create_err;
}

if (!mptcp_pm_addr_families_match(sk, &entry.addr, &addr_r)) {
GENL_SET_ERR_MSG(info, "families mismatch");
Expand Down Expand Up @@ -511,17 +505,13 @@ int mptcp_pm_nl_subflow_destroy_doit(struct sk_buff *skb, struct genl_info *info

laddr = info->attrs[MPTCP_PM_ATTR_ADDR];
err = mptcp_pm_parse_entry(laddr, info, true, &addr_l);
if (err < 0) {
NL_SET_ERR_MSG_ATTR(info->extack, laddr, "error parsing local addr");
if (err < 0)
goto destroy_err;
}

raddr = info->attrs[MPTCP_PM_ATTR_ADDR_REMOTE];
err = mptcp_pm_parse_addr(raddr, info, &addr_r);
if (err < 0) {
NL_SET_ERR_MSG_ATTR(info->extack, raddr, "error parsing remote addr");
if (err < 0)
goto destroy_err;
}

#if IS_ENABLED(CONFIG_MPTCP_IPV6)
if (addr_l.addr.family == AF_INET && ipv6_addr_v4mapped(&addr_r.addr6)) {
Expand Down

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