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PCI: Mark expected switch fall-through

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Mark switch cases where we are expecting to fall through.

This fixes the following warning (Building: allmodconfig i386):

  drivers/pci/hotplug/ibmphp_res.c: In function ‘update_bridge_ranges’:
  drivers/pci/hotplug/ibmphp_res.c:1943:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
	 function = 0x8;
	 ~~~~~~~~~^~~~~
  drivers/pci/hotplug/ibmphp_res.c:1944:6: note: here
	case PCI_HEADER_TYPE_MULTIBRIDGE:
	^~~~

Link: https://lore.kernel.org/r/20190802012248.GA22622@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Gustavo A. R. Silva 2019-08-01 20:22:48 -05:00 committed by Bjorn Helgaas
parent befa45fb5b
commit 5a2e340690
1 changed files with 1 additions and 0 deletions
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drivers/pci/hotplug/ibmphp_res.c
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@ -1941,6 +1941,7 @@ static int __init update_bridge_ranges(struct bus_node **bus)
break;
case PCI_HEADER_TYPE_BRIDGE:
function = 0x8;
/* fall through */
case PCI_HEADER_TYPE_MULTIBRIDGE:
/* We assume here that only 1 bus behind the bridge
TO DO: add functionality for several: