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-rw-r--r--src/superio/acpi/pnp.asl4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/superio/acpi/pnp.asl b/src/superio/acpi/pnp.asl
index dc5c3909c4..6fdcb85898 100644
--- a/src/superio/acpi/pnp.asl
+++ b/src/superio/acpi/pnp.asl
@@ -121,10 +121,10 @@
#define PNP_WRITE_IRQ(IRQ_TO, RESOURCE, IRQ_TAG) \
CreateWordField (RESOURCE, IRQ_TAG._INT, IRQ_TAG##W)\
- Subtract (FindSetLeftBit (IRQ_TAG##W), 1, IRQ_TO)
+ IRQ_TO = FindSetLeftBit (IRQ_TAG##W) - 1
#define PNP_WRITE_DMA(DMA_TO, RESOURCE, DMA_TAG) \
CreateByteField (RESOURCE, DMA_TAG._DMA, DMA_TAG##W)\
- Subtract (FindSetLeftBit (DMA_TAG##W), 1, DMA_TO)
+ DMA_TO = FindSetLeftBit (DMA_TAG##W) - 1
#endif