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Message-Id: <1372860295-8306-3-git-send-email-mika.westerberg@linux.intel.com>
Date: Wed, 3 Jul 2013 17:04:49 +0300
From: Mika Westerberg <mika.westerberg@...ux.intel.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc: Jesse Barnes <jbarnes@...tuousgeek.org>,
Yinghai Lu <yinghai@...nel.org>, john.ronciak@...el.com,
miles.j.penner@...el.com, bruce.w.allan@...el.com,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
linux-pci@...r.kernel.org, x86@...nel.org
Subject: [PATCH v2 2/8] PCI: acpiphp: do not check for SLOT_ENABLED in enable_device()
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
With Thunderbolt you can chain devices: connect a new devices to plugged
one. In this case the slot is already enabled, but we still want to look
for new devices behind it.
We're going to reuse enable_device() for rescan for new devices on the
enabled slot. Let's push the check up by stack.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
drivers/pci/hotplug/acpiphp_glue.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 59df857..b983e29 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -688,9 +688,6 @@ static int __ref enable_device(struct acpiphp_slot *slot)
int num, max, pass;
LIST_HEAD(add_list);
- if (slot->flags & SLOT_ENABLED)
- goto err_exit;
-
list_for_each_entry(func, &slot->funcs, sibling)
acpiphp_bus_add(func);
@@ -1242,6 +1239,8 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot)
goto err_exit;
if (get_slot_status(slot) == ACPI_STA_ALL) {
+ if (slot->flags & SLOT_ENABLED)
+ goto err_exit;
/* configure all functions */
retval = enable_device(slot);
if (retval)
--
1.8.3.2
--
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