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authorRajat Jain <rajatxjain@gmail.com>2014-02-04 18:30:21 -0800
committerBjorn Helgaas <bhelgaas@google.com>2014-02-11 16:08:44 -0700
commit02e93a8a7c1dcecc1a33ea762a0c041cbb6a0a66 (patch)
tree512f033f19542ae614ec7899031dda18a6b4df06 /drivers/pci/hotplug/pciehp_ctrl.c
parentb1811d2455f32754cc3d8725bf2e961c5eda2a72 (diff)
downloadop-kernel-dev-02e93a8a7c1dcecc1a33ea762a0c041cbb6a0a66.zip
op-kernel-dev-02e93a8a7c1dcecc1a33ea762a0c041cbb6a0a66.tar.gz
PCI: pciehp: Don't check adapter or latch status while disabling
It does not make much sense to refuse to disable a slot if an adapter is not present or the latch is open. If an adapter is not present, it provides an even better reason to disable the device slot. This is specially a problem for link state hot-plug, because some ports use in band mechanism for presence detection. Thus when link goes down, presence detect also goes down. We _want_ that the removal should take place in such case. Thus remove the checks for adapter and latch in pciehp_disable_slot() Signed-off-by: Rajat Jain <rajatxjain@gmail.com> Signed-off-by: Rajat Jain <rajatjain@juniper.net> Signed-off-by: Guenter Roeck <groeck@juniper.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_ctrl.c')
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 5608284..b418e3b 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -582,24 +582,6 @@ int pciehp_disable_slot(struct slot *p_slot)
if (!p_slot->ctrl)
return 1;
- if (!HP_SUPR_RM(p_slot->ctrl)) {
- pciehp_get_adapter_status(p_slot, &getstatus);
- if (!getstatus) {
- ctrl_info(ctrl, "No adapter on slot(%s)\n",
- slot_name(p_slot));
- return -ENODEV;
- }
- }
-
- if (MRL_SENS(p_slot->ctrl)) {
- pciehp_get_latch_status(p_slot, &getstatus);
- if (getstatus) {
- ctrl_info(ctrl, "Latch open on slot(%s)\n",
- slot_name(p_slot));
- return -ENODEV;
- }
- }
-
if (POWER_CTRL(p_slot->ctrl)) {
pciehp_get_power_status(p_slot, &getstatus);
if (!getstatus) {
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