This is a note to let you know that I've just added the patch titled
PCI: Export pcie_find_root_port
to the 4.8-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:
pci-export-pcie_find_root_port.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e784930bd645e7df78c66e7872fec282b0620075 Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <jthumshirn@xxxxxxx>
Date: Wed, 2 Nov 2016 16:35:51 -0600
Subject: PCI: Export pcie_find_root_port
From: Johannes Thumshirn <jthumshirn@xxxxxxx>
commit e784930bd645e7df78c66e7872fec282b0620075 upstream.
Export pcie_find_root_port() so we can use it outside of PCIe-AER error
injection.
Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/pcie/aer/aer_inject.c | 14 --------------
include/linux/pci.h | 14 ++++++++++++++
2 files changed, 14 insertions(+), 14 deletions(-)
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -307,20 +307,6 @@ out:
return 0;
}
-static struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
-{
- while (1) {
- if (!pci_is_pcie(dev))
- break;
- if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
- return dev;
- if (!dev->bus->self)
- break;
- dev = dev->bus->self;
- }
- return NULL;
-}
-
static int find_aer_device_iter(struct device *device, void *data)
{
struct pcie_device **result = data;
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1896,6 +1896,20 @@ static inline int pci_pcie_type(const st
return (pcie_caps_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4;
}
+static inline struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
+{
+ while (1) {
+ if (!pci_is_pcie(dev))
+ break;
+ if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
+ return dev;
+ if (!dev->bus->self)
+ break;
+ dev = dev->bus->self;
+ }
+ return NULL;
+}
+
void pci_request_acs(void);
bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags);
bool pci_acs_path_enabled(struct pci_dev *start,
Patches currently in stable-queue which might be from jthumshirn@xxxxxxx are
queue-4.8/scsi-libfc-fix-seconds_since_last_reset-miscalculation.patch
queue-4.8/pci-set-read-completion-boundary-to-128-iff-root-port-supports-it-_hpx.patch
queue-4.8/pci-export-pcie_find_root_port.patch
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