xen-netfront: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/net/xen-netfront.c: In function ‘netback_changed’: drivers/net/xen-netfront.c:2038:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (dev->state == XenbusStateClosed) ^ drivers/net/xen-netfront.c:2041:2: note: here case XenbusStateClosing: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -2037,7 +2037,7 @@ static void netback_changed(struct xenbus_device *dev,
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case XenbusStateClosed:
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if (dev->state == XenbusStateClosed)
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break;
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/* Missed the backend's CLOSING state -- fallthrough */
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/* Fall through - Missed the backend's CLOSING state. */
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case XenbusStateClosing:
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xenbus_frontend_closed(dev);
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break;
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