lkml.org 
[lkml]   [2020]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [RFC PATCH] irqchip/sifive-plic: Fix getting wrong chip_data when interrupt is hierarchy
Date
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.


\
 
 \ /
  Last update: 2020-11-01 13:11    [W:0.078 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site