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 X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADD57C433E0 for ; Mon, 22 Mar 2021 16:07:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 83E1F619B7 for ; Mon, 22 Mar 2021 16:07:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232034AbhCVQGr (ORCPT ); Mon, 22 Mar 2021 12:06:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:53560 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231776AbhCVQFq (ORCPT ); Mon, 22 Mar 2021 12:05:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 49D21619CF; Mon, 22 Mar 2021 16:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Cc: Arnd Bergmann , x86@kernel.org, Ning Sun , Kalle Valo , Simon Kelley , James Smart , "James E.J. Bottomley" , Anders Larsen , Tejun Heo , Serge Hallyn , Imre Deak , linux-arm-kernel@lists.infradead.org, tboot-devel@lists.sourceforge.net, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, cgroups@vger.kernel.org, linux-security-module@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Manasi Navare , Uma Shankar , Ankit Nautiyal , Gwan-gyeong Mun , Animesh Manna , Sean Paul Subject: [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-Id: <20210322160253.4032422-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322160253.4032422-1-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Arnd Bergmann gcc-11 warns that intel_dp_check_mst_status() has a local array of fourteen bytes and passes the last four bytes into a function that expects a six-byte array: drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_check_mst_status’: drivers/gpu/drm/i915/display/intel_dp.c:4556:22: error: ‘drm_dp_channel_eq_ok’ reading 6 bytes from a region of size 4 [-Werror=stringop-overread] 4556 | !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp.c:4556:22: note: referencing argument 1 of type ‘const u8 *’ {aka ‘const unsigned char *’} In file included from drivers/gpu/drm/i915/display/intel_dp.c:38: include/drm/drm_dp_helper.h:1459:6: note: in a call to function ‘drm_dp_channel_eq_ok’ 1459 | bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE], | ^~~~~~~~~~~~~~~~~~~~ Clearly something is wrong here, but I can't quite figure out what. Changing the array size to 16 bytes avoids the warning, but is probably the wrong solution here. Signed-off-by: Arnd Bergmann --- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 8c12d5375607..830e2515f119 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -65,7 +65,7 @@ #include "intel_vdsc.h" #include "intel_vrr.h" -#define DP_DPRX_ESI_LEN 14 +#define DP_DPRX_ESI_LEN 16 /* DP DSC throughput values used for slice count calculations KPixels/s */ #define DP_DSC_PEAK_PIXEL_RATE 2720000 -- 2.29.2 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 X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3346AC433E1 for ; Mon, 22 Mar 2021 16:07:18 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BFC49619B6 for ; Mon, 22 Mar 2021 16:07:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BFC49619B6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OMqoDMMJquWJEyXGPly3iB6ESTLBOnbbsGV1rFFpJzw=; b=ZrK7ncka2feGeMTfJjFcY8ckR 4xbBjXWavMNIbhYkmewXFytETNNSkY2/+pu49q1Ve8GnlsMvsjq3c9iVRHvzc7jBdUAjj4lirsfrs y98yJ77LWoDb50yJD6FnQVJnnImvZH3Ul7DwigFfQrznIaMvF+PsR02pkSEXmw3ScSe5Hv3CGtiHc c20QLHK6iaLAw5pEsT4UDXCO5FtmI7I2u+gJBhxVEF5zEcGkR5jPE7xiaG8s5b9JgkuZ5JlwVPVHa F9y52hLq8czomaLMtnyOUWgcZk1MPTEHhw8YsyhJUkAeAr90p7MAht+AQc8tBmbNZBcIE9yKLVD6S hskl4ToJQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lON5E-00ByaE-Kx; Mon, 22 Mar 2021 16:07:12 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lON3o-00Bxyl-I9; Mon, 22 Mar 2021 16:05:46 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 49D21619CF; Mon, 22 Mar 2021 16:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Cc: Arnd Bergmann , x86@kernel.org, Ning Sun , Kalle Valo , Simon Kelley , James Smart , "James E.J. Bottomley" , Anders Larsen , Tejun Heo , Serge Hallyn , Imre Deak , linux-arm-kernel@lists.infradead.org, tboot-devel@lists.sourceforge.net, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, cgroups@vger.kernel.org, linux-security-module@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Manasi Navare , Uma Shankar , Ankit Nautiyal , Gwan-gyeong Mun , Animesh Manna , Sean Paul Subject: [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-Id: <20210322160253.4032422-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322160253.4032422-1-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210322_160545_302305_48D0A692 X-CRM114-Status: GOOD ( 14.33 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org RnJvbTogQXJuZCBCZXJnbWFubiA8YXJuZEBhcm5kYi5kZT4KCmdjYy0xMSB3YXJucyB0aGF0IGlu dGVsX2RwX2NoZWNrX21zdF9zdGF0dXMoKSBoYXMgYSBsb2NhbCBhcnJheSBvZgpmb3VydGVlbiBi eXRlcyBhbmQgcGFzc2VzIHRoZSBsYXN0IGZvdXIgYnl0ZXMgaW50byBhIGZ1bmN0aW9uIHRoYXQK ZXhwZWN0cyBhIHNpeC1ieXRlIGFycmF5OgoKZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jOiBJbiBmdW5jdGlvbiDigJhpbnRlbF9kcF9jaGVja19tc3Rfc3RhdHVz4oCZOgpk cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2RwLmM6NDU1NjoyMjogZXJyb3I6IOKA mGRybV9kcF9jaGFubmVsX2VxX29r4oCZIHJlYWRpbmcgNiBieXRlcyBmcm9tIGEgcmVnaW9uIG9m IHNpemUgNCBbLVdlcnJvcj1zdHJpbmdvcC1vdmVycmVhZF0KIDQ1NTYgfCAgICAgICAgICAgICAg ICAgICAgICFkcm1fZHBfY2hhbm5lbF9lcV9vaygmZXNpWzEwXSwgaW50ZWxfZHAtPmxhbmVfY291 bnQpKSB7CiAgICAgIHwgICAgICAgICAgICAgICAgICAgICAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+ fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fgpkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNw bGF5L2ludGVsX2RwLmM6NDU1NjoyMjogbm90ZTogcmVmZXJlbmNpbmcgYXJndW1lbnQgMSBvZiB0 eXBlIOKAmGNvbnN0IHU4ICrigJkge2FrYSDigJhjb25zdCB1bnNpZ25lZCBjaGFyICrigJl9Cklu IGZpbGUgaW5jbHVkZWQgZnJvbSBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2Rw LmM6Mzg6CmluY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaDoxNDU5OjY6IG5vdGU6IGluIGEgY2Fs bCB0byBmdW5jdGlvbiDigJhkcm1fZHBfY2hhbm5lbF9lcV9va+KAmQogMTQ1OSB8IGJvb2wgZHJt X2RwX2NoYW5uZWxfZXFfb2soY29uc3QgdTggbGlua19zdGF0dXNbRFBfTElOS19TVEFUVVNfU0la RV0sCiAgICAgIHwgICAgICBefn5+fn5+fn5+fn5+fn5+fn5+fgoKQ2xlYXJseSBzb21ldGhpbmcg aXMgd3JvbmcgaGVyZSwgYnV0IEkgY2FuJ3QgcXVpdGUgZmlndXJlIG91dCB3aGF0LgpDaGFuZ2lu ZyB0aGUgYXJyYXkgc2l6ZSB0byAxNiBieXRlcyBhdm9pZHMgdGhlIHdhcm5pbmcsIGJ1dCBpcwpw cm9iYWJseSB0aGUgd3Jvbmcgc29sdXRpb24gaGVyZS4KClNpZ25lZC1vZmYtYnk6IEFybmQgQmVy Z21hbm4gPGFybmRAYXJuZGIuZGU+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jIHwgMiArLQogMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0 aW9uKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9k cC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kcC5jCmluZGV4IDhjMTJk NTM3NTYwNy4uODMwZTI1MTVmMTE5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9k aXNwbGF5L2ludGVsX2RwLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRl bF9kcC5jCkBAIC02NSw3ICs2NSw3IEBACiAjaW5jbHVkZSAiaW50ZWxfdmRzYy5oIgogI2luY2x1 ZGUgImludGVsX3Zyci5oIgogCi0jZGVmaW5lIERQX0RQUlhfRVNJX0xFTiAxNAorI2RlZmluZSBE UF9EUFJYX0VTSV9MRU4gMTYKIAogLyogRFAgRFNDIHRocm91Z2hwdXQgdmFsdWVzIHVzZWQgZm9y IHNsaWNlIGNvdW50IGNhbGN1bGF0aW9ucyBLUGl4ZWxzL3MgKi8KICNkZWZpbmUgRFBfRFNDX1BF QUtfUElYRUxfUkFURQkJCTI3MjAwMDAKLS0gCjIuMjkuMgoKCi0tIAphdGgxMWsgbWFpbGluZyBs aXN0CmF0aDExa0BsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3Jn L21haWxtYW4vbGlzdGluZm8vYXRoMTFrCg== 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 X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82234C433DB for ; Mon, 22 Mar 2021 16:08:57 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D3366198C for ; Mon, 22 Mar 2021 16:08:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D3366198C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0plwUvjf3/EyolnwhVrZwRyA9pxlSCMHxc/EXGFaDOU=; b=f2W528GfQRJdgmEZbciI/Krp3 +PjxVR6lJTWbQZjFJoDThtc4K9QjurmLSOnPuHnitWpoi289WLwpdIojCV5SZoOeyrc4dCYOAXMpb rd/cqa8UHn/BMUfE69imhB4ttBk4jZbJQsZndPbmKqDlQTrjCtkGMTEgOu2Ayx6B+WDPAtJdNGSM8 SDc3Y6mFmcH/f4Knmassow6HMK0Y9fMy8sryRBePPAsQA3+a0r9vepHiEmTJBAO6dU376JFjMjUbc GJuArDZmGuzRxYWY3846vTuxV+CFuLqlLfdgdzPuqOQqM/n2NDKV+61FpycKrFXquawG4X2dM/a1X SoT6g8qnQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lON5H-00BybQ-Pn; Mon, 22 Mar 2021 16:07:16 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lON3o-00Bxyl-I9; Mon, 22 Mar 2021 16:05:46 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 49D21619CF; Mon, 22 Mar 2021 16:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Cc: Arnd Bergmann , x86@kernel.org, Ning Sun , Kalle Valo , Simon Kelley , James Smart , "James E.J. Bottomley" , Anders Larsen , Tejun Heo , Serge Hallyn , Imre Deak , linux-arm-kernel@lists.infradead.org, tboot-devel@lists.sourceforge.net, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, cgroups@vger.kernel.org, linux-security-module@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Manasi Navare , Uma Shankar , Ankit Nautiyal , Gwan-gyeong Mun , Animesh Manna , Sean Paul Subject: [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-Id: <20210322160253.4032422-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322160253.4032422-1-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210322_160545_302305_48D0A692 X-CRM114-Status: GOOD ( 14.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org RnJvbTogQXJuZCBCZXJnbWFubiA8YXJuZEBhcm5kYi5kZT4KCmdjYy0xMSB3YXJucyB0aGF0IGlu dGVsX2RwX2NoZWNrX21zdF9zdGF0dXMoKSBoYXMgYSBsb2NhbCBhcnJheSBvZgpmb3VydGVlbiBi eXRlcyBhbmQgcGFzc2VzIHRoZSBsYXN0IGZvdXIgYnl0ZXMgaW50byBhIGZ1bmN0aW9uIHRoYXQK ZXhwZWN0cyBhIHNpeC1ieXRlIGFycmF5OgoKZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jOiBJbiBmdW5jdGlvbiDigJhpbnRlbF9kcF9jaGVja19tc3Rfc3RhdHVz4oCZOgpk cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2RwLmM6NDU1NjoyMjogZXJyb3I6IOKA mGRybV9kcF9jaGFubmVsX2VxX29r4oCZIHJlYWRpbmcgNiBieXRlcyBmcm9tIGEgcmVnaW9uIG9m IHNpemUgNCBbLVdlcnJvcj1zdHJpbmdvcC1vdmVycmVhZF0KIDQ1NTYgfCAgICAgICAgICAgICAg ICAgICAgICFkcm1fZHBfY2hhbm5lbF9lcV9vaygmZXNpWzEwXSwgaW50ZWxfZHAtPmxhbmVfY291 bnQpKSB7CiAgICAgIHwgICAgICAgICAgICAgICAgICAgICAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+ fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fgpkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNw bGF5L2ludGVsX2RwLmM6NDU1NjoyMjogbm90ZTogcmVmZXJlbmNpbmcgYXJndW1lbnQgMSBvZiB0 eXBlIOKAmGNvbnN0IHU4ICrigJkge2FrYSDigJhjb25zdCB1bnNpZ25lZCBjaGFyICrigJl9Cklu IGZpbGUgaW5jbHVkZWQgZnJvbSBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2Rw LmM6Mzg6CmluY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaDoxNDU5OjY6IG5vdGU6IGluIGEgY2Fs bCB0byBmdW5jdGlvbiDigJhkcm1fZHBfY2hhbm5lbF9lcV9va+KAmQogMTQ1OSB8IGJvb2wgZHJt X2RwX2NoYW5uZWxfZXFfb2soY29uc3QgdTggbGlua19zdGF0dXNbRFBfTElOS19TVEFUVVNfU0la RV0sCiAgICAgIHwgICAgICBefn5+fn5+fn5+fn5+fn5+fn5+fgoKQ2xlYXJseSBzb21ldGhpbmcg aXMgd3JvbmcgaGVyZSwgYnV0IEkgY2FuJ3QgcXVpdGUgZmlndXJlIG91dCB3aGF0LgpDaGFuZ2lu ZyB0aGUgYXJyYXkgc2l6ZSB0byAxNiBieXRlcyBhdm9pZHMgdGhlIHdhcm5pbmcsIGJ1dCBpcwpw cm9iYWJseSB0aGUgd3Jvbmcgc29sdXRpb24gaGVyZS4KClNpZ25lZC1vZmYtYnk6IEFybmQgQmVy Z21hbm4gPGFybmRAYXJuZGIuZGU+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jIHwgMiArLQogMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0 aW9uKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9k cC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kcC5jCmluZGV4IDhjMTJk NTM3NTYwNy4uODMwZTI1MTVmMTE5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9k aXNwbGF5L2ludGVsX2RwLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRl bF9kcC5jCkBAIC02NSw3ICs2NSw3IEBACiAjaW5jbHVkZSAiaW50ZWxfdmRzYy5oIgogI2luY2x1 ZGUgImludGVsX3Zyci5oIgogCi0jZGVmaW5lIERQX0RQUlhfRVNJX0xFTiAxNAorI2RlZmluZSBE UF9EUFJYX0VTSV9MRU4gMTYKIAogLyogRFAgRFNDIHRocm91Z2hwdXQgdmFsdWVzIHVzZWQgZm9y IHNsaWNlIGNvdW50IGNhbGN1bGF0aW9ucyBLUGl4ZWxzL3MgKi8KICNkZWZpbmUgRFBfRFNDX1BF QUtfUElYRUxfUkFURQkJCTI3MjAwMDAKLS0gCjIuMjkuMgoKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0 CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK 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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC11BC433E0 for ; Mon, 22 Mar 2021 16:05:45 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6C0E1619AB for ; Mon, 22 Mar 2021 16:05:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C0E1619AB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E716F6E507; Mon, 22 Mar 2021 16:05:44 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4984E6E507; Mon, 22 Mar 2021 16:05:43 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 49D21619CF; Mon, 22 Mar 2021 16:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Subject: [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-Id: <20210322160253.4032422-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322160253.4032422-1-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, linux-scsi@vger.kernel.org, Animesh Manna , x86@kernel.org, James Smart , tboot-devel@lists.sourceforge.net, Uma Shankar , Kalle Valo , Ankit Nautiyal , ath11k@lists.infradead.org, Serge Hallyn , Arnd Bergmann , "James E.J. Bottomley" , Gwan-gyeong Mun , Ning Sun , Anders Larsen , Sean Paul , cgroups@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Manasi Navare , linux-security-module@vger.kernel.org, Tejun Heo , Simon Kelley , intel-gfx@lists.freedesktop.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RnJvbTogQXJuZCBCZXJnbWFubiA8YXJuZEBhcm5kYi5kZT4KCmdjYy0xMSB3YXJucyB0aGF0IGlu dGVsX2RwX2NoZWNrX21zdF9zdGF0dXMoKSBoYXMgYSBsb2NhbCBhcnJheSBvZgpmb3VydGVlbiBi eXRlcyBhbmQgcGFzc2VzIHRoZSBsYXN0IGZvdXIgYnl0ZXMgaW50byBhIGZ1bmN0aW9uIHRoYXQK ZXhwZWN0cyBhIHNpeC1ieXRlIGFycmF5OgoKZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jOiBJbiBmdW5jdGlvbiDigJhpbnRlbF9kcF9jaGVja19tc3Rfc3RhdHVz4oCZOgpk cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2RwLmM6NDU1NjoyMjogZXJyb3I6IOKA mGRybV9kcF9jaGFubmVsX2VxX29r4oCZIHJlYWRpbmcgNiBieXRlcyBmcm9tIGEgcmVnaW9uIG9m IHNpemUgNCBbLVdlcnJvcj1zdHJpbmdvcC1vdmVycmVhZF0KIDQ1NTYgfCAgICAgICAgICAgICAg ICAgICAgICFkcm1fZHBfY2hhbm5lbF9lcV9vaygmZXNpWzEwXSwgaW50ZWxfZHAtPmxhbmVfY291 bnQpKSB7CiAgICAgIHwgICAgICAgICAgICAgICAgICAgICAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+ fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fgpkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNw bGF5L2ludGVsX2RwLmM6NDU1NjoyMjogbm90ZTogcmVmZXJlbmNpbmcgYXJndW1lbnQgMSBvZiB0 eXBlIOKAmGNvbnN0IHU4ICrigJkge2FrYSDigJhjb25zdCB1bnNpZ25lZCBjaGFyICrigJl9Cklu IGZpbGUgaW5jbHVkZWQgZnJvbSBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2Rw LmM6Mzg6CmluY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaDoxNDU5OjY6IG5vdGU6IGluIGEgY2Fs bCB0byBmdW5jdGlvbiDigJhkcm1fZHBfY2hhbm5lbF9lcV9va+KAmQogMTQ1OSB8IGJvb2wgZHJt X2RwX2NoYW5uZWxfZXFfb2soY29uc3QgdTggbGlua19zdGF0dXNbRFBfTElOS19TVEFUVVNfU0la RV0sCiAgICAgIHwgICAgICBefn5+fn5+fn5+fn5+fn5+fn5+fgoKQ2xlYXJseSBzb21ldGhpbmcg aXMgd3JvbmcgaGVyZSwgYnV0IEkgY2FuJ3QgcXVpdGUgZmlndXJlIG91dCB3aGF0LgpDaGFuZ2lu ZyB0aGUgYXJyYXkgc2l6ZSB0byAxNiBieXRlcyBhdm9pZHMgdGhlIHdhcm5pbmcsIGJ1dCBpcwpw cm9iYWJseSB0aGUgd3Jvbmcgc29sdXRpb24gaGVyZS4KClNpZ25lZC1vZmYtYnk6IEFybmQgQmVy Z21hbm4gPGFybmRAYXJuZGIuZGU+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jIHwgMiArLQogMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0 aW9uKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9k cC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kcC5jCmluZGV4IDhjMTJk NTM3NTYwNy4uODMwZTI1MTVmMTE5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9k aXNwbGF5L2ludGVsX2RwLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRl bF9kcC5jCkBAIC02NSw3ICs2NSw3IEBACiAjaW5jbHVkZSAiaW50ZWxfdmRzYy5oIgogI2luY2x1 ZGUgImludGVsX3Zyci5oIgogCi0jZGVmaW5lIERQX0RQUlhfRVNJX0xFTiAxNAorI2RlZmluZSBE UF9EUFJYX0VTSV9MRU4gMTYKIAogLyogRFAgRFNDIHRocm91Z2hwdXQgdmFsdWVzIHVzZWQgZm9y IHNsaWNlIGNvdW50IGNhbGN1bGF0aW9ucyBLUGl4ZWxzL3MgKi8KICNkZWZpbmUgRFBfRFNDX1BF QUtfUElYRUxfUkFURQkJCTI3MjAwMDAKLS0gCjIuMjkuMgoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2 ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== 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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E297BC433E0 for ; Mon, 22 Mar 2021 18:17:51 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8F34461992 for ; Mon, 22 Mar 2021 18:17:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F34461992 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 471616E566; Mon, 22 Mar 2021 18:17:41 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4984E6E507; Mon, 22 Mar 2021 16:05:43 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 49D21619CF; Mon, 22 Mar 2021 16:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-Id: <20210322160253.4032422-12-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322160253.4032422-1-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 22 Mar 2021 18:17:39 +0000 Subject: [Intel-gfx] [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, linux-scsi@vger.kernel.org, x86@kernel.org, James Smart , tboot-devel@lists.sourceforge.net, Kalle Valo , ath11k@lists.infradead.org, Serge Hallyn , Arnd Bergmann , "James E.J. Bottomley" , Ning Sun , Anders Larsen , Sean Paul , cgroups@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-security-module@vger.kernel.org, Tejun Heo , Simon Kelley , intel-gfx@lists.freedesktop.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" RnJvbTogQXJuZCBCZXJnbWFubiA8YXJuZEBhcm5kYi5kZT4KCmdjYy0xMSB3YXJucyB0aGF0IGlu dGVsX2RwX2NoZWNrX21zdF9zdGF0dXMoKSBoYXMgYSBsb2NhbCBhcnJheSBvZgpmb3VydGVlbiBi eXRlcyBhbmQgcGFzc2VzIHRoZSBsYXN0IGZvdXIgYnl0ZXMgaW50byBhIGZ1bmN0aW9uIHRoYXQK ZXhwZWN0cyBhIHNpeC1ieXRlIGFycmF5OgoKZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jOiBJbiBmdW5jdGlvbiDigJhpbnRlbF9kcF9jaGVja19tc3Rfc3RhdHVz4oCZOgpk cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2RwLmM6NDU1NjoyMjogZXJyb3I6IOKA mGRybV9kcF9jaGFubmVsX2VxX29r4oCZIHJlYWRpbmcgNiBieXRlcyBmcm9tIGEgcmVnaW9uIG9m IHNpemUgNCBbLVdlcnJvcj1zdHJpbmdvcC1vdmVycmVhZF0KIDQ1NTYgfCAgICAgICAgICAgICAg ICAgICAgICFkcm1fZHBfY2hhbm5lbF9lcV9vaygmZXNpWzEwXSwgaW50ZWxfZHAtPmxhbmVfY291 bnQpKSB7CiAgICAgIHwgICAgICAgICAgICAgICAgICAgICAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+ fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fgpkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNw bGF5L2ludGVsX2RwLmM6NDU1NjoyMjogbm90ZTogcmVmZXJlbmNpbmcgYXJndW1lbnQgMSBvZiB0 eXBlIOKAmGNvbnN0IHU4ICrigJkge2FrYSDigJhjb25zdCB1bnNpZ25lZCBjaGFyICrigJl9Cklu IGZpbGUgaW5jbHVkZWQgZnJvbSBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2Rw LmM6Mzg6CmluY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaDoxNDU5OjY6IG5vdGU6IGluIGEgY2Fs bCB0byBmdW5jdGlvbiDigJhkcm1fZHBfY2hhbm5lbF9lcV9va+KAmQogMTQ1OSB8IGJvb2wgZHJt X2RwX2NoYW5uZWxfZXFfb2soY29uc3QgdTggbGlua19zdGF0dXNbRFBfTElOS19TVEFUVVNfU0la RV0sCiAgICAgIHwgICAgICBefn5+fn5+fn5+fn5+fn5+fn5+fgoKQ2xlYXJseSBzb21ldGhpbmcg aXMgd3JvbmcgaGVyZSwgYnV0IEkgY2FuJ3QgcXVpdGUgZmlndXJlIG91dCB3aGF0LgpDaGFuZ2lu ZyB0aGUgYXJyYXkgc2l6ZSB0byAxNiBieXRlcyBhdm9pZHMgdGhlIHdhcm5pbmcsIGJ1dCBpcwpw cm9iYWJseSB0aGUgd3Jvbmcgc29sdXRpb24gaGVyZS4KClNpZ25lZC1vZmYtYnk6IEFybmQgQmVy Z21hbm4gPGFybmRAYXJuZGIuZGU+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9p bnRlbF9kcC5jIHwgMiArLQogMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0 aW9uKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9k cC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kcC5jCmluZGV4IDhjMTJk NTM3NTYwNy4uODMwZTI1MTVmMTE5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9k aXNwbGF5L2ludGVsX2RwLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRl bF9kcC5jCkBAIC02NSw3ICs2NSw3IEBACiAjaW5jbHVkZSAiaW50ZWxfdmRzYy5oIgogI2luY2x1 ZGUgImludGVsX3Zyci5oIgogCi0jZGVmaW5lIERQX0RQUlhfRVNJX0xFTiAxNAorI2RlZmluZSBE UF9EUFJYX0VTSV9MRU4gMTYKIAogLyogRFAgRFNDIHRocm91Z2hwdXQgdmFsdWVzIHVzZWQgZm9y IHNsaWNlIGNvdW50IGNhbGN1bGF0aW9ucyBLUGl4ZWxzL3MgKi8KICNkZWZpbmUgRFBfRFNDX1BF QUtfUElYRUxfUkFURQkJCTI3MjAwMDAKLS0gCjIuMjkuMgoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1n ZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: [PATCH 11/11] [RFC] drm/i915/dp: fix array overflow warning Date: Mon, 22 Mar 2021 17:02:49 +0100 Message-ID: <20210322160253.4032422-12-arnd@kernel.org> References: <20210322160253.4032422-1-arnd@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616429143; bh=ppc9fZupOrjA6hpvzPGCige1HMZi82rKq0OzuPiwp30=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KfNQhB8I6TCilI9rWZIUvrD60VxxXK7zzzf2CzYQVcPCX4dTFC+5vrq57/HXue9eN 7bPBi+K09Uuo8FgLHJN5cLADDDnPtd+D6sEhJhO/VLvKBoLaRa1BESfKHtMpZuvnwh D3Vc4uZU9Dcg74j9eeiZa4qkcbeOz2ZvcezhMcicUmJ4FzCGExiFKR4ER32CvaOaWV akMTcdJNfGrFGH5JvGZ7qns0oNxpRTzGH0qZ76EqyoQfhjLJvxqyHurET1PBvf6svb dBMESSwDo3iJsmPDGBQ1mVtfw03/ahNqDciEznfWOfvZZJNzU8YYxi4I1doMFPdTRo oo8eGNoKcMUqQ== In-Reply-To: <20210322160253.4032422-1-arnd-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> List-ID: Content-Type: text/plain; charset="utf-8" To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Martin Sebor , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter Cc: Arnd Bergmann , x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, Ning Sun , Kalle Valo , Simon Kelley , James Smart , "James E.J. Bottomley" , Anders Larsen , Tejun Heo , Serge Hallyn , Imre Deak , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, tboot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, intel-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, ath11k-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Manasi From: Arnd Bergmann gcc-11 warns that intel_dp_check_mst_status() has a local array of fourteen bytes and passes the last four bytes into a function that expects a six-byte array: drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_check_mst_status’: drivers/gpu/drm/i915/display/intel_dp.c:4556:22: error: ‘drm_dp_channel_eq_ok’ reading 6 bytes from a region of size 4 [-Werror=stringop-overread] 4556 | !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp.c:4556:22: note: referencing argument 1 of type ‘const u8 *’ {aka ‘const unsigned char *’} In file included from drivers/gpu/drm/i915/display/intel_dp.c:38: include/drm/drm_dp_helper.h:1459:6: note: in a call to function ‘drm_dp_channel_eq_ok’ 1459 | bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE], | ^~~~~~~~~~~~~~~~~~~~ Clearly something is wrong here, but I can't quite figure out what. Changing the array size to 16 bytes avoids the warning, but is probably the wrong solution here. Signed-off-by: Arnd Bergmann --- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 8c12d5375607..830e2515f119 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -65,7 +65,7 @@ #include "intel_vdsc.h" #include "intel_vrr.h" -#define DP_DPRX_ESI_LEN 14 +#define DP_DPRX_ESI_LEN 16 /* DP DSC throughput values used for slice count calculations KPixels/s */ #define DP_DSC_PEAK_PIXEL_RATE 2720000 -- 2.29.2