Re: [PATCH] usb: xhci: fix maximum event ring segments calculation

[Thorsten Leemhuis]

On 8/30/26 05:12, Pierre-David Belanger wrote:

> The failure on 08dbfad3f504:
> 
>   xhci_hcd 0000:00:04.0: xHCI Host Controller
>   xhci_hcd 0000:00:04.0: new USB bus registered, assigned bus number 1
>   xhci_hcd 0000:00:04.0: Failed to allocate interrupter erst
>   xhci_hcd 0000:00:04.0: can't setup: -12
>   xhci_hcd 0000:00:04.0: USB bus 1 deregistered
>   xhci_hcd 0000:00:04.0: init 0000:00:04.0 fail, -12
>   xhci_hcd 0000:00:04.0: probe with driver xhci_hcd failed with error -12
FWIW, not my area of expertise, but to me it looks like there were two
similar fixes submitted earlier to address this and "usb: xhci: Fix
HCS_ERST_MAX conversion" (
https://lore.kernel.org/all/20260828105926.930033-1-oushixiong1025@xxxxxxx/
) seems to be heading towards mainline already according to Mathias.
Sadly this missed -rc1, wonder why it wasn't submitted for it to prevent
more people from running into this, but whatever, that's ship has sailed.

Ciao, Thorsten