Re: [PATCH 00/22] Explicitly deny IRQ0 in the USB host drivers
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-10-19 05:41:39
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-10-19 05:41:39
On Mon, Oct 18, 2021 at 09:39:08PM +0300, Sergey Shtylyov wrote:
Here are 22 patches against the 'usb-next' branch of Greg KH's 'usb.git' repo. The affected drivers use platform_get_irq() which can return IRQ0 (considered invalid, according to Linus) that means broken HCD when passed to usb_add_hcd() called at the end of the probe methods. I think that the solution to this issue is either explicitly deny or accept IRQ0 in usb_add_hcd()... /but/ here's this patch set to get the things going...
Why not fix the root of the problem for your platform that is failing to assign a valid irq for the device? Are you going to make this change to all callers of this function in the kernel tree? thanks, greg k-h