This is a note to let you know that I've just added the patch titled
of: fix PCI bus match for PCIe slots
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
of-fix-pci-bus-match-for-pcie-slots.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 14e2abb732e485ee57d9d5b2cb8884652238e5c1 Mon Sep 17 00:00:00 2001
From: Kleber Sacilotto de Souza <klebers@xxxxxxxxxxxxxxxxxx>
Date: Mon, 3 Feb 2014 13:31:03 -0200
Subject: of: fix PCI bus match for PCIe slots
From: Kleber Sacilotto de Souza <klebers@xxxxxxxxxxxxxxxxxx>
commit 14e2abb732e485ee57d9d5b2cb8884652238e5c1 upstream.
On IBM pseries systems the device_type device-tree property of a PCIe
bridge contains the string "pciex". The of_bus_pci_match() function was
looking only for "pci" on this property, so in such cases the bus
matching code was falling back to the default bus, causing problems on
functions that should be using "assigned-addresses" for region address
translation. This patch fixes the problem by also looking for "pciex" on
the PCI bus match function.
v2: added comment
Signed-off-by: Kleber Sacilotto de Souza <klebers@xxxxxxxxxxxxxxxxxx>
Acked-by: Grant Likely <grant.likely@xxxxxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/of/address.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -99,11 +99,12 @@ static unsigned int of_bus_default_get_f
static int of_bus_pci_match(struct device_node *np)
{
/*
+ * "pciex" is PCI Express
* "vci" is for the /chaos bridge on 1st-gen PCI powermacs
* "ht" is hypertransport
*/
- return !strcmp(np->type, "pci") || !strcmp(np->type, "vci") ||
- !strcmp(np->type, "ht");
+ return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex") ||
+ !strcmp(np->type, "vci") || !strcmp(np->type, "ht");
}
static void of_bus_pci_count_cells(struct device_node *np,
Patches currently in stable-queue which might be from klebers@xxxxxxxxxxxxxxxxxx are
queue-3.12/of-fix-pci-bus-match-for-pcie-slots.patch
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