PCI: pciehp: Remove unused interrupt events

This change “PCI: pciehp: Remove unused interrupt events” in Linux kernel is authored by Bjorn Helgaas <bhelgaas [at] google.com> on Wed Jul 1 17:01:03 2015 -0500.

PCI: pciehp: Remove unused interrupt events

The list of interrupt events (INT_BUTTON_IGNORE, INT_PRESENCE_ON, etc.) was
copied from other hotplug drivers, but pciehp doesn't use them all.

Remove the interrupt events that aren't used by pciehp.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

This Linux change may have been applied to various maintained Linux releases and you can find Linux releases including commit 58fa240.

There are 10 lines of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 drivers/pci/hotplug/pciehp.h | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 57cd132..aca84e1 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -101,18 +101,14 @@ struct controller {
 	unsigned int power_fault_detected;
 };
 
-#define INT_BUTTON_IGNORE		0
 #define INT_PRESENCE_ON			1
 #define INT_PRESENCE_OFF		2
 #define INT_SWITCH_CLOSE		3
 #define INT_SWITCH_OPEN			4
 #define INT_POWER_FAULT			5
-#define INT_POWER_FAULT_CLEAR		6
-#define INT_BUTTON_PRESS		7
-#define INT_BUTTON_RELEASE		8
-#define INT_BUTTON_CANCEL		9
-#define INT_LINK_UP			10
-#define INT_LINK_DOWN			11
+#define INT_BUTTON_PRESS		6
+#define INT_LINK_UP			7
+#define INT_LINK_DOWN			8
 
 #define STATIC_STATE			0
 #define BLINKINGON_STATE		1

The commit for this change in Linux stable tree is 58fa240 (patch).

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