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| author | Anton Blanchard <anton@samba.org> | 2010-01-06 15:55:13 +1100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-01-12 18:19:37 +0100 |
| commit | d797396f3387c5be8f63fcc8e9be98bb884ea86a (patch) | |
| tree | 63024f12dfb080db7d8fbc73776f1bbdc68bbf7f /Documentation/i2c | |
| parent | 0e8a1d8262f41d6e8c1d736a408882bbb7a5c0a6 (diff) | |
| download | linux-d797396f3387c5be8f63fcc8e9be98bb884ea86a.tar.bz2 | |
MIPS: 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>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Patchwork: http://patchwork.linux-mips.org/patch/831/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'Documentation/i2c')
0 files changed, 0 insertions, 0 deletions