Re: [PATCH v3 1/2] irqchip/loongson-eiointc: Fix return value checking of eiointc_index

[Philippe Mathieu-Daudé]

On 11/7/23 14:08, Bibo Mao wrote:
> Return value of function eiointc_index is int, however it is converted
> into uint32_t and then compared smaller than zero. This causes logic
> problem. There is eioint initialization problem on qemu virt-machine
> where there is only one eioint node and more than 4 vcpus. Nodemap of
> eioint is 1, and external device intr can only be routed to vcpu 0-3, the
> other vcpus can not response any external device interrupts and only local
> processor interrupts like ipi/timer can work.
>
> Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
> ---
>   drivers/irqchip/irq-loongson-eiointc.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)

Fixes: dd281e1a1a93 ("irqchip: Add Loongson Extended I/O interrupt 
controller support")

Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>