From patchwork Tue Apr 26 08:21:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 566460 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 66F0FC433EF for ; Tue, 26 Apr 2022 08:37:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345361AbiDZIkS (ORCPT ); Tue, 26 Apr 2022 04:40:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345440AbiDZIjH (ORCPT ); Tue, 26 Apr 2022 04:39:07 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4242B1387F4; Tue, 26 Apr 2022 01:29:47 -0700 (PDT) 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 dfw.source.kernel.org (Postfix) with ESMTPS id C43276185A; Tue, 26 Apr 2022 08:29:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21EECC385A4; Tue, 26 Apr 2022 08:29:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650961786; bh=MD2a3mTLCRYlsfqyW71MashvvoF42g9X7TNWmf2UenA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KZl4qppQo68r3wXX0caOgVJ7J5vWgA4Sjqm0MdXtK8n4yHsp+rlbA4H9R/cNWhsN0 DFE/zOWReaIhV8ck5czauTNk3NuMw99Sq1d0GHjHMCzYznLe9jaFZztDfR9kon/giN UVegGSwooTtbDMnj8NvuCen1SVOXNFcrlzaNg0Gk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Borislav Petkov , Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Kalle Valo , "David S. Miller" , Jakub Kicinski , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Sasha Levin Subject: [PATCH 5.4 29/62] mt76: Fix undefined behavior due to shift overflowing the constant Date: Tue, 26 Apr 2022 10:21:09 +0200 Message-Id: <20220426081738.061478684@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220426081737.209637816@linuxfoundation.org> References: <20220426081737.209637816@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Borislav Petkov [ Upstream commit dbc2b1764734857d68425468ffa8486e97ab89df ] Fix: drivers/net/wireless/mediatek/mt76/mt76x2/pci.c: In function ‘mt76x2e_probe’: ././include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_946’ \ declared with attribute error: FIELD_PREP: mask is not constant _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) See https://lore.kernel.org/r/YkwQ6%2BtIH8GQpuct@zn.tnic for the gory details as to why it triggers with older gccs only. Signed-off-by: Borislav Petkov Cc: Felix Fietkau Cc: Lorenzo Bianconi Cc: Ryder Lee Cc: Shayne Chen Cc: Sean Wang Cc: Kalle Valo Cc: "David S. Miller" Cc: Jakub Kicinski Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220405151517.29753-9-bp@alien8.de Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt76x2/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c index cf611d1b817c..e6d7646a0d9c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c @@ -76,7 +76,7 @@ mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9); /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */ - mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf); + mt76_rmw_field(dev, 0x15a0c, 0xfU << 28, 0xf); /* RG_SSUSB_CDR_BR_PE1D = 0x3 */ mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3);