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 232A7C433F5 for ; Fri, 20 May 2022 06:45:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345956AbiETGpQ (ORCPT ); Fri, 20 May 2022 02:45:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345958AbiETGpO (ORCPT ); Fri, 20 May 2022 02:45:14 -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 737DE14CDCE for ; Thu, 19 May 2022 23:45:13 -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 04FDF61DAE for ; Fri, 20 May 2022 06:45:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1FB63C385A9; Fri, 20 May 2022 06:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653029112; bh=YUbX3JtusIzXc7sFFiCK91kV5cPUy9Rk1AwIlgAqjck=; h=From:To:Cc:Subject:Date:From; b=ifka/h0OGHS4t8mm2+DuaXvCHLgoOMHD2a7E1Q57lBZmqooco+4tHqSRgWZBzVg4v b/X34yaUR5ljHMWUwhTckqVnR8Jvu8ES48TwQ/q62+T5dfCYr/lwyYVbXC4LU5W5rK OZ56QMCdEIVNJSYdtmClGMaY3PVKrzt4/ulpKsv08Csppl/H1IcOPo8enub4VIluVc omdTyI5ujhQVqjoJkQ6Q/oO2ryHs7TEdOcSiCHEJV6n6dmK+KL6O2MxC3wfpPbEznC lS+m2Y+bwbx4jPtTjYv6qPDYuipMwwSaIJc5KRl3vdV7/L2F+64CugswvjBlQb+FcY 2tN3QIe+qxxFg== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, mchan@broadcom.com, siva.kallam@broadcom.com, prashant@broadcom.com, Jakub Kicinski Subject: [PATCH net-next] eth: tg3: silence the GCC 12 array-bounds warning Date: Thu, 19 May 2022 23:45:05 -0700 Message-Id: <20220520064505.2316192-1-kuba@kernel.org> X-Mailer: git-send-email 2.34.3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org GCC 12 currently generates a rather inconsistent warning: drivers/net/ethernet/broadcom/tg3.c:17795:51: warning: array subscript 5 is above array bounds of ‘struct tg3_napi[5]’ [-Warray-bounds] 17795 | struct tg3_napi *tnapi = &tp->napi[i]; | ~~~~~~~~^~~ i is guaranteed < tp->irq_max which in turn is either 1 or 5. There are more loops like this one in the driver, but strangely GCC 12 dislikes only this single one. Silence this silliness for now. Signed-off-by: Jakub Kicinski --- --- drivers/net/ethernet/broadcom/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile index 0ddfb5b5d53c..577130c020d0 100644 --- a/drivers/net/ethernet/broadcom/Makefile +++ b/drivers/net/ethernet/broadcom/Makefile @@ -17,3 +17,8 @@ obj-$(CONFIG_BGMAC_BCMA) += bgmac-bcma.o bgmac-bcma-mdio.o obj-$(CONFIG_BGMAC_PLATFORM) += bgmac-platform.o obj-$(CONFIG_SYSTEMPORT) += bcmsysport.o obj-$(CONFIG_BNXT) += bnxt/ + +# FIXME: temporarily silence -Warray-bounds on non W=1 builds +ifndef KBUILD_EXTRA_WARN +CFLAGS_tg3.o += $(call cc-disable-warning, array-bounds) +endif -- 2.34.3