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 CE3FCEB64DD for ; Thu, 3 Aug 2023 14:43:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235936AbjHCOnx (ORCPT ); Thu, 3 Aug 2023 10:43:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236986AbjHCOnQ (ORCPT ); Thu, 3 Aug 2023 10:43:16 -0400 Received: from mail-wm1-x34a.google.com (mail-wm1-x34a.google.com [IPv6:2a00:1450:4864:20::34a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C81C730D2 for ; Thu, 3 Aug 2023 07:42:31 -0700 (PDT) Received: by mail-wm1-x34a.google.com with SMTP id 5b1f17b1804b1-3fe182913c5so6729355e9.0 for ; Thu, 03 Aug 2023 07:42:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1691073750; x=1691678550; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=0ejXtVjO9uaTmaPpKPCMPrm2Yr8xE8g5nBELmFhSIvc=; b=eclzpD56PAvuFmNsITeQ3TfHQrMtVUwZTr94wlpz582WaX1/EGrXcEoUcROygX07ZA MoXJNvUp1vUJpQPhTufbiLoa6dCNqMGR+1ghn7bq0gJW+AIkr3ByMXAlRcH0OCPdL+UD 4DCg9aUolAXKTpm5MqQhQvIXzhR/JeXGIopYb8FnLXzrBS/0iQTAvA806Fxpcycphnrv P2KYfsCzqpRx4i+ykt7RuQvrbsA/dAXtSpe/nrqmvPNG1oHmjpRg1yeNAjwbCZDhvvEm pVzneh4RP1j7mUIctLjMDIK/3ANqW5aBn8LPm7tnsPG7wOgxQ+exofEebAa6eaiknLT4 KnLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691073750; x=1691678550; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=0ejXtVjO9uaTmaPpKPCMPrm2Yr8xE8g5nBELmFhSIvc=; b=Fi6w5BJpylGjSBHNaK8w+LiQcypQgkN8qZ+ev+aoWKxyK97THUbA4X8Xgnb1yvUgOy Zq6bik8w2DorgmSIkxgOpmb1IZ0Xp4enWQJvWsJfsoQxvMxdsJR6F9Hy8H7lsHMwujdv vFBBe4IFgFks9NqMrwu467Hg/e6y7zNG1N16+VxN8XUlbMTXnsMo4/TM/acUuIhz7elc 8afI3x4NH7o0SPWQtRqUilW4x2/xXMlC+mGM0Qz0U+Cq9qtTMBPXLBbbye7BuWWvmxf4 L3+TEjNHU6h9stVtLIHCzISGEgzBCSJhNr9LSp7K7N3llOQZFnR1vg/KSP6GEeZ0ghYj +4Hw== X-Gm-Message-State: ABy/qLawF3GZFp1DmrGgRV1p/AU8LfWWu4QVyZhRiHIpVGcw5XOQVRxv exGnVFQ+laUnKIVkRBZB6pBnlfqZmkc= X-Google-Smtp-Source: APBJJlHoRP9t97M7xyqZGKQN0/CPF7nCzoPK8aCSenB+Cx/LKVYYj2MS/G6vKOM7eOcGqD5bDkjkz9P1bO8= X-Received: from nogikhp920.muc.corp.google.com ([2a00:79e0:9c:201:2d82:fa1b:ad60:64b]) (user=nogikh job=sendgmr) by 2002:adf:f6c8:0:b0:314:182c:1a2b with SMTP id y8-20020adff6c8000000b00314182c1a2bmr50766wrp.4.1691073750119; Thu, 03 Aug 2023 07:42:30 -0700 (PDT) Date: Thu, 3 Aug 2023 16:42:27 +0200 Mime-Version: 1.0 X-Mailer: git-send-email 2.41.0.585.gd2178a4bd4-goog Message-ID: <20230803144227.2187749-1-nogikh@google.com> Subject: drivers/gpu/drm/bridge/samsung-dsim.c link error From: Aleksandr Nogikh To: aford173@gmail.com, l.stach@pengutronix.de, inki.dae@samsung.com, jagan@amarulasolutions.com, m.szyprowski@samsung.com, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: syzkaller@googlegroups.com, dvyukov@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, We've been seing the following linker error on arm64 syzbot instances: ld.lld: error: undefined symbol: phy_mipi_dphy_get_default_config_for_hsclk >>> referenced by samsung-dsim.c:731 (drivers/gpu/drm/bridge/samsung-dsim.c:731) >>> drivers/gpu/drm/bridge/samsung-dsim.o:(samsung_dsim_init) in archive vmlinux.a Steps to reproduce on the latest linux-next: $ git checkout next-20230803 $ wget -O '.config' 'https://raw.githubusercontent.com/google/syzkaller/master/dashboard/config/linux/upstream-arm64-kasan.config' $ make CC=clang ARCH=arm64 LD=ld.lld CROSS_COMPILE=aarch64-linux-gnu- olddefconfig This also prints: WARNING: unmet direct dependencies detected for GENERIC_PHY_MIPI_DPHY Depends on [n]: GENERIC_PHY [=n] Selected by [y]: - DRM_NWL_MIPI_DSI [=y] && DRM_BRIDGE [=y] && DRM [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y] - DRM_SAMSUNG_DSIM [=y] && DRM [=y] && DRM_BRIDGE [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y] $ make CC=clang ARCH=arm64 LD=ld.lld CROSS_COMPILE=aarch64-linux-gnu- -j$(nproc) The kernel should have still compiled fine even despite the message above, right? Could you please take a look? -- Thank you! Aleksandr