From: sashiko-bot@kernel.org
To: "Thinh Nguyen" <Thinh.Nguyen@synopsys.com>
Cc: "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: [PATCH 4/7] usb: dwc3: gadget: Issue no-op Start Transfer only for stream endpoints
Date: Wed, 21 Oct 2026 00:48:04 +0000 [thread overview]
Message-ID: <sashiko-outbox-179647@kernel.org> (raw)
In-Reply-To: <227e97e30d26a017c92d7008a8633c01f955d088.1792542945.git.Thinh.Nguyen@synopsys.com>
> The function driver may re-enable an endpoint before the End Transfer
> command issued on ep disable completes. The no-op Start Transfer issued
> on ep enable then fails with "No Resource".
>
> Only stream endpoints need the no-op Start Transfer to initiate a
> stream. Other bulk and interrupt endpoints start their transfer when a
> request is queued. Skip it for those endpoints, and move it to a helper
> to be reused.
>
> Fixes: a97ea994605e ("usb: dwc3: gadget: offset Start Transfer latency for bulk EPs")
> Cc: stable@vger.kernel.org
> Reported-by: Selvarasu Ganesan <selvarasu.g@samsung.com>
> Closes: https://lore.kernel.org/linux-usb/20260227121236.963-1-selvarasu.g@samsung.com/
> Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1792542945.git.Thinh.Nguyen@synopsys.com?part=4
next prev parent reply other threads:[~2026-10-21 0:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-21 0:37 [PATCH 0/7] usb: dwc3: gadget: Fix No Resource after End Transfer Thinh Nguyen
2026-10-21 0:37 ` [PATCH 1/7] usb: dwc3: gadget: Reject requests to a disabled endpoint Thinh Nguyen
2026-10-21 0:44 ` sashiko-bot
2026-10-21 0:37 ` [PATCH 2/7] usb: dwc3: gadget: Track a timed out End Transfer Thinh Nguyen
2026-10-21 0:43 ` sashiko-bot
2026-10-21 0:38 ` [PATCH 3/7] usb: dwc3: gadget: Clear delayed stop on End Transfer completion Thinh Nguyen
2026-10-21 0:58 ` sashiko-bot
2026-10-21 0:38 ` [PATCH 4/7] usb: dwc3: gadget: Issue no-op Start Transfer only for stream endpoints Thinh Nguyen
2026-10-21 0:48 ` sashiko-bot [this message]
2026-10-21 0:38 ` [PATCH 5/7] usb: dwc3: gadget: Wait for End Transfer completion on ep disable Thinh Nguyen
2026-10-21 1:13 ` sashiko-bot
2026-10-21 0:38 ` [PATCH 6/7] usb: dwc3: gadget: Reset endpoint flags on controller start Thinh Nguyen
2026-10-21 1:03 ` sashiko-bot
2026-10-21 0:38 ` [PATCH 7/7] usb: dwc3: gadget: Recover from End Transfer timeout Thinh Nguyen
2026-10-21 1:05 ` sashiko-bot
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