Messages in this thread | | | From | Marc Zyngier <> | Subject | Re: [RFC PATCH] irqchip/sifive-plic: Fix getting wrong chip_data when interrupt is hierarchy | Date | Sun, 1 Nov 2020 12:10:27 +0000 |
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On Thu, 29 Oct 2020 10:37:38 +0800, Greentime Hu wrote: > This oops is caused by a wrong chip_data and it is because plic_irq_unmask > uses irq_get_chip_data(irq_data->irq) to get the chip_data. However it may > get another irq_data with the same irq_data->irq if it is hierarchy. > > In this case, it will get irq_data of sifive_gpio_irqchip instead of > plic_chip so that it will get a wrong chip_data and then the wrong lmask > of it to cause this oops. > > [...]
Applied to irq/irqchip-next, thanks!
[1/1] irqchip/sifive-plic: Fix chip_data access within a hierarchy commit: f9ac7bbd6e4540dcc6df621b9c9b6eb2e26ded1d
Cheers,
M. -- Without deviation from the norm, progress is not possible.
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