linux-kernel - [PATCH 2/4] Fix PCIe hotplug for non-ACPI ExpressCard slots (version 2)

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Date:	Tue, 16 Oct 2007 21:54:42 -0400
From:	Mark Lord <lkml@....ca>
To:	Kristen Carlson Accardi <kristen.c.accardi@...el.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	Greg KH <greg@...ah.com>, pcihpd-discuss@...ts.sourceforge.net,
	Andrew Morton <akpm@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>
Subject: [PATCH 2/4] Fix PCIe hotplug for non-ACPI ExpressCard slots (version
 2)

Fix pciehp_probe() to deal with pre-inserted ExpressCard cards,
but only when pciehp_force==1.  Otherwise behaviour is unmodified.

Signed-off-by: Mark Lord <mlord@...ox.com>
---
--- old/drivers/pci/hotplug/pciehp_ctrl.c	2007-10-16 21:14:44.000000000 -0400
+++ linux/drivers/pci/hotplug/pciehp_ctrl.c	2007-10-16 21:16:36.000000000 -0400
@@ -37,7 +37,6 @@
 #include "pciehp.h"
 
 static void interrupt_event_handler(struct work_struct *work);
-static int pciehp_enable_slot(struct slot *p_slot);
 static int pciehp_disable_slot(struct slot *p_slot);
 
 static int queue_interrupt_event(struct slot *p_slot, u32 event_type)
--- old/drivers/pci/hotplug/pciehp.h	2007-10-12 12:43:44.000000000 -0400
+++ linux/drivers/pci/hotplug/pciehp.h	2007-10-16 21:16:06.000000000 -0400
@@ -161,6 +161,7 @@
 extern int pciehp_unconfigure_device(struct slot *p_slot);
 extern void pciehp_queue_pushbutton_work(struct work_struct *work);
 int pcie_init(struct controller *ctrl, struct pcie_device *dev);
+int pciehp_enable_slot(struct slot *p_slot);
 
 static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
 {
--- old/drivers/pci/hotplug/pciehp_core.c	2007-10-16 21:14:44.000000000 -0400
+++ linux/drivers/pci/hotplug/pciehp_core.c	2007-10-16 21:15:56.000000000 -0400
@@ -477,7 +477,8 @@
 		rc = t_slot->hpc_ops->power_off_slot(t_slot);
 		if (rc)
 			goto err_out_free_ctrl_slot;
-	}
+	} else if (pciehp_force)
+		pciehp_enable_slot(t_slot);
 
 	return 0;
 
-
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