mlxsw: spectrum_ptp: Fix build warnings

Cited commit extended the enums 'hwtstamp_tx_types' and
'hwtstamp_rx_filters' with values that were not accounted for in the
switch statements, resulting in the build warnings below.

Fix by adding a default case.

drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c: In function ‘mlxsw_sp_ptp_get_message_types’:
drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c:915:2: warning: enumeration value ‘__HWTSTAMP_TX_CNT’ not handled in switch [-Wswitch]
  915 |  switch (tx_type) {
      |  ^~~~~~
drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c:927:2: warning: enumeration value ‘__HWTSTAMP_FILTER_CNT’ not handled in switch [-Wswitch]
  927 |  switch (rx_filter) {
      |  ^~~~~~

Fixes: f76510b458a5 ("ethtool: add timestamping related string sets")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
index 34f7c35..9650562 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
@@ -922,6 +922,8 @@ static int mlxsw_sp_ptp_get_message_types(const struct hwtstamp_config *config,
        case HWTSTAMP_TX_ONESTEP_SYNC:
        case HWTSTAMP_TX_ONESTEP_P2P:
                return -ERANGE;
+       default:
+               return -EINVAL;
        }
 
        switch (rx_filter) {
@@ -952,6 +954,8 @@ static int mlxsw_sp_ptp_get_message_types(const struct hwtstamp_config *config,
        case HWTSTAMP_FILTER_SOME:
        case HWTSTAMP_FILTER_NTP_ALL:
                return -ERANGE;
+       default:
+               return -EINVAL;
        }
 
        *p_ing_types = ing_types;