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MIPS: DEC: Do not set up the FPU interrupt if no FPU
Following the arrangement for processors that wire FPU exceptions to the FPE CPU exception handle the case where no FPU is in use -- which for DECstation systems will only ever happen when the "nofpu" kernel option has been used -- do not register the FPU interrupt in such a case either. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9714/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -758,7 +758,7 @@ void __init arch_init_irq(void)
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dec_interrupt[DEC_IRQ_HALT] = -1;
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/* Register board interrupts: FPU and cascade. */
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if (dec_interrupt[DEC_IRQ_FPU] >= 0) {
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if (dec_interrupt[DEC_IRQ_FPU] >= 0 && cpu_has_fpu) {
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struct irq_desc *desc_fpu;
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int irq_fpu;
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