usb: dwc2: only masquerade split-IN interrupt transfers#7290
Merged
pelwell merged 1 commit intoraspberrypi:rpi-6.18.yfrom Apr 8, 2026
Merged
usb: dwc2: only masquerade split-IN interrupt transfers#7290pelwell merged 1 commit intoraspberrypi:rpi-6.18.yfrom
pelwell merged 1 commit intoraspberrypi:rpi-6.18.yfrom
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PR has positive feedback. Unsure as to whether this goes in 6.12 as it's a bugfix, but for an edge case. |
Contributor
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If you are satisfied that this is unlikely to change behaviour in a negative way then we should do the back port. |
Some hub hardware does not differentiate pipe direction in the non-periodic split handler, so transfers to the same endpoint index will collide. A simple fix is to limit the non-periodic masquerade only to IN transfers, which are also the most affected by interrupt latency. A recurrence of raspberrypi#2024 Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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I'm satisfied that it won't regress behaviour. |
popcornmix
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kernel: usb: dwc2: only masquerade split-IN interrupt transfers See: raspberrypi/linux#7290 kernel: Backport PHY hwtstamp_get support for ethtool tsconfig (CM5) See: raspberrypi/linux#7293
popcornmix
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kernel: usb: dwc2: only masquerade split-IN interrupt transfers See: raspberrypi/linux#7290 kernel: Backport PHY hwtstamp_get support for ethtool tsconfig (CM5) See: raspberrypi/linux#7293
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Potential workaround for #7282