From 9361b771ad0b8fe1206469b89fc2eef9d13fe8b2 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 10 Jun 2015 19:44:20 -0300
Subject: [PATCH 3/7] interrupts: Do not refrain from parsing the irq
 affinities for !root

I.e. let the OS be the one to decide if access to this file is allowed
or not, and non root users can see this, at least around 4.1-rc times:

Running: procfs/procfs.py:

  31: {'affinity': [0, 1, 2, 3], 'type': 'PCI-MSI-edge', 'cpu': [178564, 0, 285828, 0], 'users': ['xhci_hcd']}
  30: {'affinity': [0, 1, 2, 3], 'type': 'PCI-MSI-edge', 'cpu': [342630, 0, 197229, 0], 'users': ['0000:00:1f.2']}
  35: {'affinity': [0, 1, 2, 3], 'type': 'PCI-MSI-edge', 'cpu': [858, 0, 565, 0], 'users': ['snd_hda_intel']}
  34: {'affinity': [0, 1, 2, 3], 'type': 'PCI-MSI-edge', 'cpu': [306, 0, 44, 0], 'users': ['thunderbolt']}

And now 'tuna -Q' works for non root users:

  [acme@zoo python-linux-procfs]$ ../tuna/tuna-cmd.py -Q
     # users            affinity
     0 timer             0,1,2,3
     8 rtc0              0,1,2,3
     9 acpi              0,1,2,3
    17 17-fasteoi   brcmsmac  0,1,2,3
    22 22-fasteoi   ehci_hcd:usb4  0,1,2,3
    23 23-fasteoi   ehci_hcd:usb3  0,1,2,3
    26 pciehp            0,1,2,3
    27 pciehp            0,1,2,3
    28 pciehp            0,1,2,3
    29 pciehp            0,1,2,3
    30 0000:00:1f.2      0,1,2,3
    31 xhci_hcd          0,1,2,3
    32 i915              0,1,2,3
    33 mei_me            0,1,2,3
    34 thunderbolt       0,1,2,3
    35 snd_hda_intel     0,1,2,3
  [acme@zoo python-linux-procfs]$

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: John Kacur <jkacur@redhat.com>
---
 procfs/procfs.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/procfs/procfs.py b/procfs/procfs.py
index 4ff7e9804bc9..2d0e2b043797 100755
--- a/procfs/procfs.py
+++ b/procfs/procfs.py
@@ -405,8 +405,6 @@ class interrupts:
 		return dict
 
 	def parse_affinity(self, irq):
-		if os.getuid() != 0:
-			return
 		try:
 			f = file("/proc/irq/%s/smp_affinity" % irq)
 			line = f.readline()
-- 
1.8.3.1