From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 621B7C4332F for ; Sat, 24 Dec 2022 01:43:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237049AbiLXBnd (ORCPT ); Fri, 23 Dec 2022 20:43:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237075AbiLXBl6 (ORCPT ); Fri, 23 Dec 2022 20:41:58 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 263C556D7C; Fri, 23 Dec 2022 17:33:49 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 9794ECE1D03; Sat, 24 Dec 2022 01:33:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E081C433F0; Sat, 24 Dec 2022 01:33:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671845612; bh=a5WBbi6MJo+w2IIzowc3UGampdUoFPDmqlBd9eh11Vk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N73qg9Xqefki2WugkQ0NVBpxIG+fhVY0kNw0NwaEjUrCTY0nUeNVnPnCRb9iqADgB e5lUI2zlXB03jJ+AAo3biATFVA2QfLzXpZgc57pcE+HYZYRDDbsPUYUrUyCSDnpIvS RtVfoWCgIxzCccigK/1ctWk/+xqwlPNlpiCBYn/e3y5N8bFOcbq5ioCKGk4cl++Wrw KfVFgqAJ1HUUdGQwhy6ujmBz7xXIHcRCY+mhAeoOcxQN3s9cOBooH14zmKWzeiTDxK JNg+cS7j4z8tIirRTCqYmNTXvteqxKx/PqLuTgSvEL8O7AvJ7eqpIlBtuw99wW9Bhj yK/SC6RkcIc3g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Shuah Khan , Greg Kroah-Hartman , Sasha Levin , valentina.manea.m@gmail.com, shuah@kernel.org, linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 3/4] usb/usbip: Fix v_recv_cmd_submit() to use PIPE_BULK define Date: Fri, 23 Dec 2022 20:33:24 -0500 Message-Id: <20221224013325.393931-3-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221224013325.393931-1-sashal@kernel.org> References: <20221224013325.393931-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shuah Khan [ Upstream commit dd65a243a915ca319ed5fee9161a168c836fa2f2 ] Fix v_recv_cmd_submit() to use PIPE_BULK define instead of hard coded values. This also fixes the following signed integer overflow error reported by cppcheck. This is not an issue since pipe is unsigned int. However, this change improves the code to use proper define. drivers/usb/usbip/vudc_rx.c:152:26: error: Signed integer overflow for expression '3<<30'. [integerOverflow] urb_p->urb->pipe &= ~(3 << 30); In addition, add a build time check for PIPE_BULK != 3 as the code path depends on PIPE_BULK = 3. Signed-off-by: Shuah Khan Link: https://lore.kernel.org/r/20221110194738.38514-1-skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/usbip/vudc_rx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/usbip/vudc_rx.c b/drivers/usb/usbip/vudc_rx.c index d020e72b3122..7c5d09ee3ef8 100644 --- a/drivers/usb/usbip/vudc_rx.c +++ b/drivers/usb/usbip/vudc_rx.c @@ -161,7 +161,9 @@ static int v_recv_cmd_submit(struct vudc *udc, urb_p->urb->status = -EINPROGRESS; /* FIXME: more pipe setup to please usbip_common */ - urb_p->urb->pipe &= ~(3 << 30); + BUILD_BUG_ON_MSG(PIPE_BULK != 3, "PIPE_* doesn't range from 0 to 3"); + + urb_p->urb->pipe &= ~(PIPE_BULK << 30); switch (urb_p->ep->type) { case USB_ENDPOINT_XFER_BULK: urb_p->urb->pipe |= (PIPE_BULK << 30); -- 2.35.1