[PATCH] MIPS: BCM63XX: Mark expected switch fall-through

[Gustavo A. R. Silva]

Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: bcm63xx_defconfig mips):

arch/mips/pci/ops-bcm63xx.c: In function ‘bcm63xx_pcie_can_access’:
arch/mips/pci/ops-bcm63xx.c:474:6: warning: this statement may fall through 
[-Wimplicit-fallthrough=]
   if (PCI_SLOT(devfn) == 0)
      ^
arch/mips/pci/ops-bcm63xx.c:477:2: note: here
  default:
  ^~~~~~~

Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
---
 arch/mips/pci/ops-bcm63xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/pci/ops-bcm63xx.c b/arch/mips/pci/ops-bcm63xx.c
index d02eb9d16b55..925c72348fb6 100644
--- a/arch/mips/pci/ops-bcm63xx.c
+++ b/arch/mips/pci/ops-bcm63xx.c
@@ -474,6 +474,7 @@ static int bcm63xx_pcie_can_access(struct pci_bus *bus, int 
devfn)
                if (PCI_SLOT(devfn) == 0)
                        return bcm_pcie_readl(PCIE_DLSTATUS_REG)
                                        & DLSTATUS_PHYLINKUP;
+               /* else, fall through */
        default:
                return false;
        }
-- 
2.22.0