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 D793AC433EF for ; Mon, 30 May 2022 14:38:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232935AbiE3OiB (ORCPT ); Mon, 30 May 2022 10:38:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42818 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240578AbiE3OTz (ORCPT ); Mon, 30 May 2022 10:19:55 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15FA91248D4; Mon, 30 May 2022 06:50:00 -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 ams.source.kernel.org (Postfix) with ESMTPS id 56A5FB80DAC; Mon, 30 May 2022 13:49:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24528C385B8; Mon, 30 May 2022 13:49:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653918560; bh=t7o3dVSPbYAXzDXsGXvIxTwGgdjNZH7ytre5uqNhv44=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=trDVC1tcAtT/KcsWgWcIdCzoWfneqgE5EBWDb5ATXMtSBXjvs26cI4VIyOVQIpr7F K2lPTXAurktRhPC+cflLdQli3p5styg6Un7Qe6Bmhp70Uua4ATb5+xbAyOF4ov3rrS jvueyfI/eYDMy2k6oJQCz/vUTQw/TpIW+VE8y5LsijMVuHnwIp3HsxEofAtGVkf4e3 N147VqDE5+0m8AGq++XHWXWLXX0zgF8HaibwF0dqw3LaR1ebb9IYWHIP0uZlR8Mm7a BSX9aSgg8Q2UhPlAEYx6xmSiWVesNE7wZ7lfC3RIhbU4v/hTiAOL5wIp3GSGnYuVT2 Ge4h3qHQEcewg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jakub Kicinski , "David S . Miller" , Sasha Levin , edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 54/55] eth: tg3: silence the GCC 12 array-bounds warning Date: Mon, 30 May 2022 09:47:00 -0400 Message-Id: <20220530134701.1935933-54-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220530134701.1935933-1-sashal@kernel.org> References: <20220530134701.1935933-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jakub Kicinski [ Upstream commit 9dec850fd7c210a04b4707df8e6c95bfafdd6a4b ] 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- 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 7046ad6d3d0e..ac50da49ca77 100644 --- a/drivers/net/ethernet/broadcom/Makefile +++ b/drivers/net/ethernet/broadcom/Makefile @@ -16,3 +16,8 @@ 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 += -Wno-array-bounds +endif -- 2.35.1