net: mpls: Fix GCC 12 warning

When building with automatic stack variable initialization, GCC 12
complains about variables defined outside of switch case statements.
Move the variable outside the switch, which silences the warning:

./net/mpls/af_mpls.c:1624:21: error: statement will never be executed [-Werror=switch-unreachable]
  1624 |                 int err;
       |                     ^~~

Signed-off-by: Victor Erminpour <victor.erminpour@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 48f75a56f4ae7d5c0836198c3f02789dcc76e74e..d6fdc5782d332c4a7791fa1aa025a2e7e6ffcddd 100644 (file)
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -1607,6 +1607,7 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
        struct net_device *dev = netdev_notifier_info_to_dev(ptr);
        struct mpls_dev *mdev;
        unsigned int flags;
+       int err;
 
        if (event == NETDEV_REGISTER) {
                mdev = mpls_add_dev(dev);
@@ -1621,7 +1622,6 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
                return NOTIFY_OK;
 
        switch (event) {
-               int err;
 
        case NETDEV_DOWN:
                err = mpls_ifdown(dev, event);