From c8ceacc22bce95d3a9cff198c9c27a30105a16b8 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 3 May 2016 15:41:45 +1000 Subject: powerpc/powernv: Exclude root bus in pnv_pci_reset_secondary_bus() The function pnv_pci_reset_secondary_bus() is called like below. It's impossible for call the function on root bus. So it's safe to remove the root bus case in the function. No functional changes introduced. pci_parent_bus_reset() / pci_bus_reset() / pci_try_reset_bus() pci_reset_bridge_secondary_bus() pcibios_reset_secondary_bus() pnv_pci_reset_secondary_bus() Signed-off-by: Gavin Shan Reviewed-by: Daniel Axtens Reviewed-by: Alexey Kardashevskiy Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/eeh-powernv.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 9226df1..593b8dc 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -868,16 +868,8 @@ static int pnv_eeh_bridge_reset(struct pci_dev *dev, int option) void pnv_pci_reset_secondary_bus(struct pci_dev *dev) { - struct pci_controller *hose; - - if (pci_is_root_bus(dev->bus)) { - hose = pci_bus_to_host(dev->bus); - pnv_eeh_root_reset(hose, EEH_RESET_HOT); - pnv_eeh_root_reset(hose, EEH_RESET_DEACTIVATE); - } else { - pnv_eeh_bridge_reset(dev, EEH_RESET_HOT); - pnv_eeh_bridge_reset(dev, EEH_RESET_DEACTIVATE); - } + pnv_eeh_bridge_reset(dev, EEH_RESET_HOT); + pnv_eeh_bridge_reset(dev, EEH_RESET_DEACTIVATE); } static void pnv_eeh_wait_for_pending(struct pci_dn *pdn, const char *type, -- cgit v1.1