tree 944b79bef5f73bfe1ea7fc5e89cb9e36562d0929
parent 80625942094b114d85811e5ff1fbc9e06dabe0ff
author Natalie.Protasevich@unisys.com <Natalie.Protasevich@unisys.com> 1122671012 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1122674473 -0700

[PATCH] x86: avoid wasting IRQs patch update

The patch addresses a problem with ACPI SCI interrupt entry, which gets
re-used, and the IRQ is assigned to another unrelated device.  The patch
corrects the code such that SCI IRQ is skipped and duplicate entry is
avoided.  Second issue came up with VIA chipset, the problem was caused by
original patch assigning IRQs starting 16 and up.  The VIA chipset uses
4-bit IRQ register for internal interrupt routing, and therefore cannot
handle IRQ numbers assigned to its devices.  The patch corrects this
problem by allowing PCI IRQs below 16.

Signed-off by: Natalie Protasevich <Natalie.Protasevich@unisys.com>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>