Re: [PATCH v2] usb: XHCI: Implement xhci_handshake_check_state() API

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On 3.10.2023 8.41, Udipto Goswami wrote:


On 9/19/2023 2:28 PM, Udipto Goswami wrote:
In some situations where xhci removal happens parallel to
xhci_handshake, we enoughter a scenario where the
xhci_handshake will fails because the status does not change
the entire duration of polling. This causes the xhci_handshake
to timeout resulting in long wait which might lead to watchdog
timeout.

The API  handles command timeout which may happen upon XHCI
stack removal. Check for xhci state and exit the handshake if
xhci is removed.

Signed-off-by: Udipto Goswami <quic_ugoswami@xxxxxxxxxxx>
---
v2: Fixed compilation error.

...

Hi All,

Gentle Reminder on this.


Thanks, added to queue

Modified the commit message a bit

-Mathias





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