From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DCBA13BF2E7; Thu, 15 Jan 2026 17:22:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768497775; cv=none; b=R1q8a7RdXZJdPbEQHqpRjrSRWhUeKZvgJa+EUthVEgiA51b3Q9lsVpAzzAO3hXgp/P7uvg74HsBEZM+EqcalF+J+Dtu05j1pHv66boeGNuVVRq8RNi6VlWyopRU4j6mFLaYbWHEEo4zu0vxBbVHyLwKYGGKyzAyIgtrRboArwcc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768497775; c=relaxed/simple; bh=EQo+azW+sWfFB3cQ/MkhD7I1yfbN77ipxXzwWE2yvCs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Zpy48sDGzPHfeQPZqC7PMDsTBiEnCd+DV017OXqMjwt6ivWE784nq33LJjuZkOOMvNXaDw8MWZ5oqqvr4LRaIF6Nk/Raq3OoCmkSz/c9nTyRIu5xlHQ3gY/htxkdDk/vmtz1bJBy8qnQwmB97lWW2kfzXBM5qHFz4SYx93Aw4OE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1IKU5xO8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="1IKU5xO8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6C2CBC19423; Thu, 15 Jan 2026 17:22:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1768497775; bh=EQo+azW+sWfFB3cQ/MkhD7I1yfbN77ipxXzwWE2yvCs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1IKU5xO8oHsN/74CCCls/vqvNxGVMsLqA4F4/241zonUhuokWFdSYKNDyPO/cJHVR 0qRA1N3fy92bbgGQmVAvVB6acrW50CbpxCeTYCIg/NTZig2klgQauuYTDN2RwlXdHj 93JmhVzIgpskAh4xKgoXirAzXx3OIE1isMErKtPk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Haotien Hsu , Wayne Chang Subject: [PATCH 5.15 198/554] usb: gadget: tegra-xudc: Always reinitialize data toggle when clear halt Date: Thu, 15 Jan 2026 17:44:24 +0100 Message-ID: <20260115164253.423672745@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260115164246.225995385@linuxfoundation.org> References: <20260115164246.225995385@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Haotien Hsu commit 2585973c7f9ee31d21e5848c996fab2521fd383d upstream. The driver previously skipped handling ClearFeature(ENDPOINT_HALT) when the endpoint was already not halted. This prevented the controller from resetting the data sequence number and reinitializing the endpoint state. According to USB 3.2 specification Rev. 1.1, section 9.4.5, ClearFeature(ENDPOINT_HALT) must always reset the data sequence and set the stream state machine to Disabled, regardless of whether the endpoint was halted. Remove the early return so that ClearFeature(ENDPOINT_HALT) always resets the endpoint sequence state as required by the specification. Fixes: 49db427232fe ("usb: gadget: Add UDC driver for tegra XUSB device mode controller") Cc: stable Signed-off-by: Haotien Hsu Signed-off-by: Wayne Chang Link: https://patch.msgid.link/20251127033540.2287517-1-waynec@nvidia.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/tegra-xudc.c | 6 ------ 1 file changed, 6 deletions(-) --- a/drivers/usb/gadget/udc/tegra-xudc.c +++ b/drivers/usb/gadget/udc/tegra-xudc.c @@ -1542,12 +1542,6 @@ static int __tegra_xudc_ep_set_halt(stru return -ENOTSUPP; } - if (!!(xudc_readl(xudc, EP_HALT) & BIT(ep->index)) == halt) { - dev_dbg(xudc->dev, "EP %u already %s\n", ep->index, - halt ? "halted" : "not halted"); - return 0; - } - if (halt) { ep_halt(xudc, ep->index); } else {