treewide: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

6 files changed, 18 insertions, 18 deletions

diff --git a/drivers/net/ethernet/sfc/falcon/ethtool.c b/drivers/net/ethernet/sfc/falcon/ethtool.c
index db90d94e24c9..a6bae6a234ba 100644
--- a/drivers/net/ethernet/sfc/falcon/ethtool.c
+++ b/drivers/net/ethernet/sfc/falcon/ethtool.c
@@ -957,7 +957,7 @@ ef4_ethtool_get_rxnfc(struct net_device *net_dev,
 		switch (info->flow_type) {
 		case TCP_V4_FLOW:
 			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
-			/* Fall through */
+			fallthrough;
 		case UDP_V4_FLOW:
 		case SCTP_V4_FLOW:
 		case AH_ESP_V4_FLOW:
diff --git a/drivers/net/ethernet/sfc/falcon/farch.c b/drivers/net/ethernet/sfc/falcon/farch.c
index 332183280a45..fa1ade856b10 100644
--- a/drivers/net/ethernet/sfc/falcon/farch.c
+++ b/drivers/net/ethernet/sfc/falcon/farch.c
@@ -1049,10 +1049,10 @@ ef4_farch_handle_rx_event(struct ef4_channel *channel, const ef4_qword_t *event)
 		switch (rx_ev_hdr_type) {
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP:
 			flags |= EF4_RX_PKT_TCP;
-			/* fall through */
+			fallthrough;
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP:
 			flags |= EF4_RX_PKT_CSUMMED;
-			/* fall through */
+			fallthrough;
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_OTHER:
 		case FSE_AZ_RX_EV_HDR_TYPE_OTHER:
 			break;
@@ -1310,7 +1310,7 @@ int ef4_farch_ev_process(struct ef4_channel *channel, int budget)
 			if (efx->type->handle_global_event &&
 			    efx->type->handle_global_event(channel, &event))
 				break;
-			/* else fall through */
+			fallthrough;
 		default:
 			netif_err(channel->efx, hw, channel->efx->net_dev,
 				  "channel %d unknown event type %d (data "
@@ -1983,7 +1983,7 @@ ef4_farch_filter_from_gen_spec(struct ef4_farch_filter_spec *spec,
 	      EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_LOC_PORT |
 	      EF4_FILTER_MATCH_REM_HOST | EF4_FILTER_MATCH_REM_PORT):
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case (EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_IP_PROTO |
 	      EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_LOC_PORT): {
 		__be32 rhost, host1, host2;
@@ -2034,7 +2034,7 @@ ef4_farch_filter_from_gen_spec(struct ef4_farch_filter_spec *spec,
 
 	case EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_OUTER_VID:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EF4_FILTER_MATCH_LOC_MAC:
 		spec->type = (is_full ? EF4_FARCH_FILTER_MAC_FULL :
 			      EF4_FARCH_FILTER_MAC_WILD);
@@ -2081,7 +2081,7 @@ ef4_farch_filter_to_gen_spec(struct ef4_filter_spec *gen_spec,
 	case EF4_FARCH_FILTER_TCP_FULL:
 	case EF4_FARCH_FILTER_UDP_FULL:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EF4_FARCH_FILTER_TCP_WILD:
 	case EF4_FARCH_FILTER_UDP_WILD: {
 		__be32 host1, host2;
@@ -2125,7 +2125,7 @@ ef4_farch_filter_to_gen_spec(struct ef4_filter_spec *gen_spec,
 
 	case EF4_FARCH_FILTER_MAC_FULL:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EF4_FARCH_FILTER_MAC_WILD:
 		gen_spec->match_flags = EF4_FILTER_MATCH_LOC_MAC;
 		if (is_full)
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c
index d07eeaad9bdf..4002f9a3ae90 100644
--- a/drivers/net/ethernet/sfc/farch.c
+++ b/drivers/net/ethernet/sfc/farch.c
@@ -1038,10 +1038,10 @@ efx_farch_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event)
 		switch (rx_ev_hdr_type) {
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP:
 			flags |= EFX_RX_PKT_TCP;
-			/* fall through */
+			fallthrough;
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP:
 			flags |= EFX_RX_PKT_CSUMMED;
-			/* fall through */
+			fallthrough;
 		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_OTHER:
 		case FSE_AZ_RX_EV_HDR_TYPE_OTHER:
 			break;
@@ -1316,7 +1316,7 @@ int efx_farch_ev_process(struct efx_channel *channel, int budget)
 			if (efx->type->handle_global_event &&
 			    efx->type->handle_global_event(channel, &event))
 				break;
-			/* else fall through */
+			fallthrough;
 		default:
 			netif_err(channel->efx, hw, channel->efx->net_dev,
 				  "channel %d unknown event type %d (data "
@@ -2043,7 +2043,7 @@ efx_farch_filter_from_gen_spec(struct efx_farch_filter_spec *spec,
 	      EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_LOC_PORT |
 	      EFX_FILTER_MATCH_REM_HOST | EFX_FILTER_MATCH_REM_PORT):
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO |
 	      EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_LOC_PORT): {
 		__be32 rhost, host1, host2;
@@ -2094,7 +2094,7 @@ efx_farch_filter_from_gen_spec(struct efx_farch_filter_spec *spec,
 
 	case EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_OUTER_VID:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EFX_FILTER_MATCH_LOC_MAC:
 		spec->type = (is_full ? EFX_FARCH_FILTER_MAC_FULL :
 			      EFX_FARCH_FILTER_MAC_WILD);
@@ -2141,7 +2141,7 @@ efx_farch_filter_to_gen_spec(struct efx_filter_spec *gen_spec,
 	case EFX_FARCH_FILTER_TCP_FULL:
 	case EFX_FARCH_FILTER_UDP_FULL:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EFX_FARCH_FILTER_TCP_WILD:
 	case EFX_FARCH_FILTER_UDP_WILD: {
 		__be32 host1, host2;
@@ -2185,7 +2185,7 @@ efx_farch_filter_to_gen_spec(struct efx_filter_spec *gen_spec,
 
 	case EFX_FARCH_FILTER_MAC_FULL:
 		is_full = true;
-		/* fall through */
+		fallthrough;
 	case EFX_FARCH_FILTER_MAC_WILD:
 		gen_spec->match_flags = EFX_FILTER_MATCH_LOC_MAC;
 		if (is_full)
diff --git a/drivers/net/ethernet/sfc/mcdi_filters.c b/drivers/net/ethernet/sfc/mcdi_filters.c
index 5a74d880b733..1523be77b9db 100644
--- a/drivers/net/ethernet/sfc/mcdi_filters.c
+++ b/drivers/net/ethernet/sfc/mcdi_filters.c
@@ -140,7 +140,7 @@ efx_mcdi_filter_push_prep_set_match_fields(struct efx_nic *efx,
 		switch (encap_type & EFX_ENCAP_TYPES_MASK) {
 		case EFX_ENCAP_TYPE_VXLAN:
 			vni_type = MC_CMD_FILTER_OP_EXT_IN_VNI_TYPE_VXLAN;
-			/* fallthrough */
+			fallthrough;
 		case EFX_ENCAP_TYPE_GENEVE:
 			COPY_VALUE(ether_type, ETHER_TYPE);
 			outer_ip_proto = IPPROTO_UDP;
diff --git a/drivers/net/ethernet/sfc/mcdi_port_common.c b/drivers/net/ethernet/sfc/mcdi_port_common.c
index 56af8b54a864..714d7f937212 100644
--- a/drivers/net/ethernet/sfc/mcdi_port_common.c
+++ b/drivers/net/ethernet/sfc/mcdi_port_common.c
@@ -282,7 +282,7 @@ void efx_mcdi_phy_decode_link(struct efx_nic *efx,
 		break;
 	default:
 		WARN_ON(1);
-		/* Fall through */
+		fallthrough;
 	case MC_CMD_FCNTL_OFF:
 		link_state->fc = 0;
 		break;
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 59a43d586967..aaa112877561 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -358,7 +358,7 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
 
 	case XDP_ABORTED:
 		trace_xdp_exception(efx->net_dev, xdp_prog, xdp_act);
-		/* Fall through */
+		fallthrough;
 	case XDP_DROP:
 		efx_free_rx_buffers(rx_queue, rx_buf, 1);
 		channel->n_rx_xdp_drops++;