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author | Scott Wood <scottwood@freescale.com> | 2012-12-21 16:15:47 +0000 |
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committer | Alexander Graf <agraf@suse.de> | 2013-01-07 17:37:10 +0100 |
commit | 47f73749c61765f7a898ac88f11995368740da10 (patch) | |
tree | 8131c8329be0fd224ecc5577a97bd3671c0979a0 /cutils.c | |
parent | 3c94378e2c500b6211e95d7457f4a9959955c3d1 (diff) |
Revert "openpic: Accelerate pending irq search"
This reverts commit a9bd83f4c65de0058659ede009fa1a241f379edd.
This counting approach is not robust against setting a bit that
was already set, or clearing a bit that was already clear. Perhaps
that is considered a bug, but besides the lack of any documentation
for that restriction, it's a pretty unpleasant way for the problem
to manifest itself.
It could be made more robust by testing the current value of the
bit before changing the count, but a later patch speeds up IRQ_check
in all cases, not just when there's nothing pending. Hopefully that
should be adequate to address performance concerns.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'cutils.c')
0 files changed, 0 insertions, 0 deletions