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[2620:137:e000::1:20]) by mx.google.com with ESMTP id hb44-20020a170907162c00b006e8c5874098si13958329ejc.43.2022.05.20.17.55.06; Fri, 20 May 2022 17:55:27 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=VqM1rnsQ; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353305AbiETTnh (ORCPT + 69 others); Fri, 20 May 2022 15:43:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353271AbiETTn2 (ORCPT ); Fri, 20 May 2022 15:43:28 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22535197F62; Fri, 20 May 2022 12:43:28 -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 B235061C1D; Fri, 20 May 2022 19:43:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53017C34119; Fri, 20 May 2022 19:43:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653075807; bh=1CHHoR/Uc9TOmk7VZ5FDY8+i+nmwtgnWeoA//yxKWSA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VqM1rnsQtmb13wh6rKfYCgUzmcvaYU/uYKKtuJFr0yp9u+YuqEkWF5urCMD3Q02pj uBdcLsUFXb7KcY4Di/fnfB+TItyds/+GwXFd/4zujRuaeVc9uBeBXkgXDYpcRLWTbe l1en4UIOgAIZ1TPyxE3Dai4f9SQdGxYKLmNEJTbFK5IRE+tBj7OpmUQ308iAp7HHq+ EuYLoEk6ciIlkkLpm7r4Fk/B4EgV/NgSc8cmFxW+Xq1Y72aUfnvfRuBNaWAD+EzXG3 +BF4gKURMw07rRMy1m9Y8Olv2GLSvzi7winKS2R9pQo9FPWzy3cE2LuBCb20T5/I57 h6xW9YvRMGMEg== From: Jakub Kicinski To: kvalo@kernel.org, johannes@sipsolutions.net Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Jakub Kicinski , chunkeey@googlemail.com Subject: [PATCH net-next 8/8] wifi: carl9170: silence a GCC 12 -Warray-bounds warning Date: Fri, 20 May 2022 12:43:20 -0700 Message-Id: <20220520194320.2356236-9-kuba@kernel.org> X-Mailer: git-send-email 2.34.3 In-Reply-To: <20220520194320.2356236-1-kuba@kernel.org> References: <20220520194320.2356236-1-kuba@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org carl9170 has a big union (struct carl9170_cmd) with all the command types in it. But it allocates buffers only large enough for a given command. This upsets GCC 12: drivers/net/wireless/ath/carl9170/cmd.c:125:30: warning: array subscript ‘struct carl9170_cmd[0]’ is partly outside array bounds of ‘unsigned char[8]’ [-Warray-bounds] 125 | tmp->hdr.cmd = cmd; | ~~~~~~~~~~~~~^~~~~ Punt the warning to W=1 for now. Hopefully GCC will learn to recognize which fields are in-bounds. Signed-off-by: Jakub Kicinski --- CC: chunkeey@googlemail.com CC: kvalo@kernel.org CC: linux-wireless@vger.kernel.org --- drivers/net/wireless/ath/carl9170/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/ath/carl9170/Makefile b/drivers/net/wireless/ath/carl9170/Makefile index 1a81868ce26d..7463baa62fa8 100644 --- a/drivers/net/wireless/ath/carl9170/Makefile +++ b/drivers/net/wireless/ath/carl9170/Makefile @@ -3,3 +3,8 @@ carl9170-objs := main.o usb.o cmd.o mac.o phy.o led.o fw.o tx.o rx.o carl9170-$(CONFIG_CARL9170_DEBUGFS) += debug.o obj-$(CONFIG_CARL9170) += carl9170.o + +# FIXME: temporarily silence -Warray-bounds on non W=1+ builds +ifndef KBUILD_EXTRA_WARN +CFLAGS_cmd.o += -Wno-array-bounds +endif -- 2.34.3