diff options
| author | Matthieu Baerts (NGI0) <matttbe@kernel.org> | 2025-02-07 14:59:20 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-02-11 12:46:37 +0100 |
| commit | 58b21309f97b08b6b9814d1ee1419249eba9ef08 (patch) | |
| tree | 1a5c21a6832f320027c2fb734f76d8ad1c246950 /net/mptcp | |
| parent | a9d71b5de76ccc50318d13b828f1a753d8e6a63f (diff) | |
mptcp: pm: userspace: flags: clearer msg if no remote addr
Since its introduction in commit 892f396c8e68 ("mptcp: netlink: issue
MP_PRIO signals from userspace PMs"), it was mandatory to specify the
remote address, because of the 'if (rem->addr.family == AF_UNSPEC)'
check done later one.
In theory, this attribute can be optional, but it sounds better to be
precise to avoid sending the MP_PRIO on the wrong subflow, e.g. if there
are multiple subflows attached to the same local ID. This can be relaxed
later on if there is a need to act on multiple subflows with one
command.
For the moment, the check to see if attr_rem is NULL can be removed,
because mptcp_pm_parse_entry() will do this check as well, no need to do
that differently here.
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/pm_userspace.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index 4de38bc03ab8..b6cf8ea1161d 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -580,11 +580,9 @@ int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) if (ret < 0) goto set_flags_err; - if (attr_rem) { - ret = mptcp_pm_parse_entry(attr_rem, info, false, &rem); - if (ret < 0) - goto set_flags_err; - } + ret = mptcp_pm_parse_entry(attr_rem, info, false, &rem); + if (ret < 0) + goto set_flags_err; if (loc.addr.family == AF_UNSPEC || rem.addr.family == AF_UNSPEC) { |