[PATCH spice] Add "fall through" comments where necessary

[Pavel Grunt <pgrunt@xxxxxxxxxx>]

Make gcc 7.0.1 happy
---
I am unable to compile using defaults on Fedora 26
---
 server/dcc.c            | 3 ++-
 server/inputs-channel.c | 2 +-
 server/reds.c           | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/server/dcc.c b/server/dcc.c
index afe37b1a..7c3d3765 100644
--- a/server/dcc.c
+++ b/server/dcc.c
@@ -885,8 +885,9 @@ int dcc_compress_image(DisplayChannelClient *dcc,
             break;
         }
 #endif
-lz_compress:
+        /* fall through */
     case SPICE_IMAGE_COMPRESSION_LZ:
+lz_compress:
         success = image_encoders_compress_lz(&dcc->priv->encoders, dest, src, o_comp_data);
         if (success && !bitmap_fmt_is_rgb(src->format)) {
             dcc_palette_cache_palette(dcc, dest->u.lz_plt.palette, &(dest->u.lz_plt.flags));
diff --git a/server/inputs-channel.c b/server/inputs-channel.c
index f105b4d0..0fb4d949 100644
--- a/server/inputs-channel.c
+++ b/server/inputs-channel.c
@@ -295,8 +295,8 @@ static int inputs_channel_handle_parsed(RedChannelClient *rcc, uint32_t size, ui
             key_down->code == SCROLL_LOCK_SCAN_CODE) {
             activate_modifiers_watch(inputs_channel, reds);
         }
-        /* fallthrough */
     }
+        /* fallthrough */
     case SPICE_MSGC_INPUTS_KEY_UP: {
         SpiceMsgcKeyUp *key_up = message;
         for (i = 0; i < 4; i++) {
diff --git a/server/reds.c b/server/reds.c
index 953a95a4..bd24741b 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -766,6 +766,7 @@ static RedPipeItem *vdi_port_read_one_msg_from_device(RedCharDevice *self,
             }
             dev->priv->message_receive_len = dev->priv->vdi_chunk_header.size;
             dev->priv->read_state = VDI_PORT_READ_STATE_GET_BUFF;
+            /* fall through */
         case VDI_PORT_READ_STATE_GET_BUFF: {
             if (!(dev->priv->current_read_buf = vdi_port_get_read_buf(reds->agent_dev))) {
                 return NULL;
@@ -777,6 +778,7 @@ static RedPipeItem *vdi_port_read_one_msg_from_device(RedCharDevice *self,
             dev->priv->message_receive_len -= dev->priv->receive_len;
             dev->priv->read_state = VDI_PORT_READ_STATE_READ_DATA;
         }
+            /* fall through */
         case VDI_PORT_READ_STATE_READ_DATA: {
             n = sif->read(reds->vdagent, dev->priv->receive_pos, dev->priv->receive_len);
             if (!n) {
-- 
2.11.1

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