This way the compiler warns when a new value is added to the enum but not to the string translation like:
drivers/net/ethernet/ibm/ibmvnic.c: In function 'adapter_state_to_string': drivers/net/ethernet/ibm/ibmvnic.c:832:2: warning: enumeration value 'VNIC_FOOBAR' not handled in switch [-Wswitch] switch (state) { ^~~~~~ drivers/net/ethernet/ibm/ibmvnic.c: In function 'reset_reason_to_string': drivers/net/ethernet/ibm/ibmvnic.c:1935:2: warning: enumeration value 'VNIC_RESET_FOOBAR' not handled in switch [-Wswitch] switch (reason) { ^~~~~~ Signed-off-by: Michal Suchanek <msucha...@suse.de> --- v2: Fix typo in commit message --- drivers/net/ethernet/ibm/ibmvnic.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 5788bb956d73..4d439413f6d9 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -846,9 +846,8 @@ static const char *adapter_state_to_string(enum vnic_state state) return "REMOVING"; case VNIC_REMOVED: return "REMOVED"; - default: - return "UNKNOWN"; } + return "UNKNOWN"; } static int ibmvnic_login(struct net_device *netdev) @@ -1946,9 +1945,8 @@ static const char *reset_reason_to_string(enum ibmvnic_reset_reason reason) return "TIMEOUT"; case VNIC_RESET_CHANGE_PARAM: return "CHANGE_PARAM"; - default: - return "UNKNOWN"; } + return "UNKNOWN"; } /* -- 2.26.2