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@@ -91,7 +91,7 @@ static void ixp4xx_config_irq(unsigned irq, enum ixp4xx_irq_type type);
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/*
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* IRQ -> GPIO mapping table
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*/
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-static char irq2gpio[32] = {
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+static signed char irq2gpio[32] = {
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-1, -1, -1, -1, -1, -1, 0, 1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, 2, 3, 4, 5, 6,
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