usb: dwc3: Add error logs for unknown endpoint events

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In cases where the controller somehow fails to write to event buffer
memory (e.g. due to incorrect MMU config), the driver would receive
all-zero dwc3 events. However, the abnormal event is silently dropped
as a regular ep0out event.
Add error logs when an unknown endpoint event is received to highlight
the anomaly.

Signed-off-by: Roy Luo <royluo@google.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230504000129.728316-1-royluo@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Roy Luo 2023-05-04 00:01:29 +00:00 • committed by Greg Kroah-Hartman

parent 02be19e914

commit 2f28c3c9c3

2 changed files with 6 additions and 0 deletions

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3

drivers/usb/dwc3/ep0.c

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3

drivers/usb/dwc3/gadget.c

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