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authorBharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>2016-09-01 15:44:46 +0530
committerBjorn Helgaas <bhelgaas@google.com>2016-09-13 10:41:48 -0500
commit9413d968f24371bede2c82ec7bb8d040eede8417 (patch)
tree6755d0423674490384a09b03df1ac81755ae1207 /arch/microblaze
parentb328f3ce993c647c055f917afa947d6c2369461d (diff)
downloadlinux-9413d968f24371bede2c82ec7bb8d040eede8417.tar.gz
microblaze/PCI: Add multidomain support for procfs
We create a procfs directory for every PCI bus.  Previously, the directory
name was just the bus number, so using the same bus number in different
domains caused a kernel crash when we tried to create a duplicate
directory.

Make pci_proc_domain() return the domain number, so procfs directories for
buses in domain 0 are named with just the bus number, and directories for
buses in other domains include both the domain number and the bus number.

[bhelgaas: changelog]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/pci/pci-common.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 81556b843a8e..7f696f97f9dd 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -632,10 +632,10 @@ void pci_process_bridge_OF_ranges(struct pci_controller *hose,
 	}
 }
 
-/* Decide whether to display the domain number in /proc */
+/* Display the domain number in /proc */
 int pci_proc_domain(struct pci_bus *bus)
 {
-	return 0;
+	return pci_domain_nr(bus);
 }
 
 /* This header fixup will do the resource fixup for all devices as they are