diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-21 15:00:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-21 15:04:17 +0100 |
| commit | 5dfc54e087c15f823ee9b6541d2f0f314e69cbed (patch) | |
| tree | 845cabe598342a9dea2b77dafef629961ee0c89c /drivers/tty/rocket.c | |
| parent | 2ef75701d1711a1feee2a82b42a2597ddc05f88b (diff) | |
| download | blackbird-op-linux-5dfc54e087c15f823ee9b6541d2f0f314e69cbed.tar.gz blackbird-op-linux-5dfc54e087c15f823ee9b6541d2f0f314e69cbed.zip | |
ARM: GIC: avoid routing interrupts to offline CPUs
The irq_set_affinity() method can be called with masks which include
offline CPUs. This allows offline CPUs to have interrupts routed to
them by writing to /proc/irq/*/smp_affinity after hotplug has taken
a CPU offline. Fix this by ensuring that we select a target CPU
present in both the required affinity and the online CPU mask.
Ensure that we return IRQ_SET_MASK_OK (which happens to be 0) on
success to ensure generic code copies the new mask into the irq_data
structure.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/tty/rocket.c')
0 files changed, 0 insertions, 0 deletions
