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Message-ID: <20161121214519.21036.33519.stgit@bhelgaas-glaptop.roam.corp.google.com>
Date: Mon, 21 Nov 2016 15:45:19 -0600
From: Bjorn Helgaas <bhelgaas@...gle.com>
To: linux-pci@...r.kernel.org,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc: Lukas Wunner <lukas@...ner.de>, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/9] PCI/PME: Drop unused support for PMEs from Root
Complex Event Collectors
Since we register pcie_pme_driver only for PCI_EXP_TYPE_ROOT_PORT, the PME
driver never claims Root Complex Event Collectors.
Remove unused code related to Root Complex Event Collectors.
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
drivers/pci/pcie/pme.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index 884bad5..9e8aa9d 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -319,23 +319,8 @@ static int pcie_pme_set_native(struct pci_dev *dev, void *ign)
static void pcie_pme_mark_devices(struct pci_dev *port)
{
pcie_pme_set_native(port, NULL);
- if (port->subordinate) {
+ if (port->subordinate)
pci_walk_bus(port->subordinate, pcie_pme_set_native, NULL);
- } else {
- struct pci_bus *bus = port->bus;
- struct pci_dev *dev;
-
- /* Check if this is a root port event collector. */
- if (pci_pcie_type(port) != PCI_EXP_TYPE_RC_EC || !bus)
- return;
-
- down_read(&pci_bus_sem);
- list_for_each_entry(dev, &bus->devices, bus_list)
- if (pci_is_pcie(dev)
- && pci_pcie_type(dev) == PCI_EXP_TYPE_RC_END)
- pcie_pme_set_native(dev, NULL);
- up_read(&pci_bus_sem);
- }
}
/**
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