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| author | Tejun Heo <tj@kernel.org> | 2008-07-05 04:10:50 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-05 20:05:37 (GMT) |
| commit | d28f87aa87ce8b196349d7c306a7e6fe3abd7155 (patch) | |
| tree | c6bc6d198536772cd50d08c6772e291c5ba91f31 /security | |
| parent | d79df630f622806c4d0e116fbaf6ebf6baf53461 (diff) | |
| download | linux-d28f87aa87ce8b196349d7c306a7e6fe3abd7155.tar.xz | |
ahci: give another shot at clearing all bits in irq_stat
Commit ea0c62f7cf70f13a67830471b613337bd0c9a62e tried to clear all
bits in irq_stat but it didn't actually achieve that as irq_stat was
anded with port_map right after read. This patch makes ahci driver
always use the unmasked value to clear irq_status.
While at it, add explanation on the peculiarities of ahci IRQ
clearing.
This was spotted by Linus Torvalds.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions