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authorRajat Jain <rajatxjain@gmail.com>2014-06-26 20:58:55 +0200
committerBjorn Helgaas <bhelgaas@google.com>2014-07-05 19:38:26 +0200
commit6c1a32e06758ba1c997f81a3c41e780cfc77b3c2 (patch)
treee161765638a6dbefd8f12fc40aa11431e354eab3 /drivers/pci/hotplug
parentPCI: pciehp: Remove assumptions about which commands cause completion events (diff)
downloadlinux-6c1a32e06758ba1c997f81a3c41e780cfc77b3c2.tar.xz
linux-6c1a32e06758ba1c997f81a3c41e780cfc77b3c2.zip
PCI: pciehp: Remove struct controller.no_cmd_complete
"no_cmd_complete" is only used once, and it duplicates read-only information we already have in the cached Slot Capabilities value. Remove the field and use the existing macro NO_CMD_CMPL() instead. [bhelgaas: changelog] 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')
-rw-r--r--drivers/pci/hotplug/pciehp.h1
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c11
2 files changed, 1 insertions, 11 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index c496258cd9a7..9e5a9fbb93d7 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -96,7 +96,6 @@ struct controller {
struct timer_list poll_timer;
unsigned long cmd_started; /* jiffies */
unsigned int cmd_busy:1;
- unsigned int no_cmd_complete:1;
unsigned int link_active_reporting:1;
unsigned int notification_enabled:1;
unsigned int power_fault_detected;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index a3a5c65def1c..f7c370993ab4 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -140,7 +140,7 @@ static void pcie_wait_cmd(struct controller *ctrl)
* If the controller does not generate notifications for command
* completions, we never need to wait between writes.
*/
- if (ctrl->no_cmd_complete)
+ if (NO_CMD_CMPL(ctrl))
return;
if (!ctrl->cmd_busy)
@@ -772,15 +772,6 @@ struct controller *pcie_init(struct pcie_device *dev)
init_waitqueue_head(&ctrl->queue);
dbg_ctrl(ctrl);
- /*
- * Controller doesn't notify of command completion if the "No
- * Command Completed Support" bit is set in Slot Capabilities.
- * If set, it means the controller can accept hotplug commands
- * with no delay between them.
- */
- if (NO_CMD_CMPL(ctrl))
- ctrl->no_cmd_complete = 1;
-
/* Check if Data Link Layer Link Active Reporting is implemented */
pcie_capability_read_dword(pdev, PCI_EXP_LNKCAP, &link_cap);
if (link_cap & PCI_EXP_LNKCAP_DLLLARC) {