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| author |   Anton Blanchard <anton@samba.org> | 2010-01-06 15:55:12 +1100 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2010-01-06 15:47:57 -0800 |
| commit | 1d1e9f04216b379000128392b11edd7f5d0ebed1 (patch) | |
| tree | 450002f3d4defb270aa150df1dccf123cd3b0844 /lib/dma-debug.c | |
| parent | Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd (diff) | |
| download | wireguard-linux-1d1e9f04216b379000128392b11edd7f5d0ebed1.tar.xz wireguard-linux-1d1e9f04216b379000128392b11edd7f5d0ebed1.zip | |
[IA64] cpumask_of_node() should handle -1 as a node
pcibus_to_node can return -1 if we cannot determine which node a pci bus
is on. If passed -1, cpumask_of_node will negatively index the lookup array
and pull in random data:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
00000000,00000003,00000000,00000000
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
64-65
Change cpumask_of_node to check for -1 and return cpu_all_mask in this
case:
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus
ffffffff,ffffffff,ffffffff,ffffffff
# cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist
0-127
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'lib/dma-debug.c')
0 files changed, 0 insertions, 0 deletions