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 1F9A5EB64DD for ; Sun, 16 Jul 2023 20:42:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232498AbjGPUmw (ORCPT ); Sun, 16 Jul 2023 16:42:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232593AbjGPUmv (ORCPT ); Sun, 16 Jul 2023 16:42:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B0497E45 for ; Sun, 16 Jul 2023 13:42:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4497160EB8 for ; Sun, 16 Jul 2023 20:42:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 56FD7C433C7; Sun, 16 Jul 2023 20:42:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1689540169; bh=isATnDHqU9ZpG/NBC7KVfs5AdKvvF8bkd40Pun4YuKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZG4h9ssK9pN3cgfXIkmo5Vmra3tyRXuCYPrIfcw5Blxn3ALzT7ZnyQUGT5PWyav3t XyFMRhC3gCm9piswC/BWUv2IGygSsmWuO0HiGE9yiF2OjnkQrsJXdBRhVW9OGpsZTt ICfrKxguz3Ww01wMjetJy8zTeCiTixStzDImGIxc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Evan Quan , Chengming Gui , =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Srinivasan Shanmugam , Evan Quan , Sasha Levin Subject: [PATCH 6.1 268/591] drm/amdgpu: Fix memcpy() in sienna_cichlid_append_powerplay_table function. Date: Sun, 16 Jul 2023 21:46:47 +0200 Message-ID: <20230716194930.831727923@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230716194923.861634455@linuxfoundation.org> References: <20230716194923.861634455@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Srinivasan Shanmugam [ Upstream commit d50dc746ff72b9c48812dac3344fa87fbde940a3 ] Fixes the following gcc with W=1: In file included from ./include/linux/string.h:253, from ./include/linux/bitmap.h:11, from ./include/linux/cpumask.h:12, from ./arch/x86/include/asm/cpumask.h:5, from ./arch/x86/include/asm/msr.h:11, from ./arch/x86/include/asm/processor.h:22, from ./arch/x86/include/asm/cpufeature.h:5, from ./arch/x86/include/asm/thread_info.h:53, from ./include/linux/thread_info.h:60, from ./arch/x86/include/asm/preempt.h:7, from ./include/linux/preempt.h:78, from ./include/linux/spinlock.h:56, from ./include/linux/mmzone.h:8, from ./include/linux/gfp.h:7, from ./include/linux/firmware.h:7, from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:26: In function ‘fortify_memcpy_chk’, inlined from ‘sienna_cichlid_append_powerplay_table’ at drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:444:2, inlined from ‘sienna_cichlid_setup_pptable’ at drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:506:8, inlined from ‘sienna_cichlid_setup_pptable’ at drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:494:12: ./include/linux/fortify-string.h:413:4: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 413 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ the compiler complains about the size calculation in the memcpy() - "sizeof(*smc_dpm_table) - sizeof(smc_dpm_table->table_header)" is much larger than what fits into table_member. Hence, reuse 'smu_memcpy_trailing' for nv1x Fixes: 7077b19a38240 ("drm/amd/pm: use macro to get pptable members") Suggested-by: Evan Quan Cc: Evan Quan Cc: Chengming Gui Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Evan Quan Acked-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index 85d53597eb07a..f7ed3e655e397 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -431,7 +431,13 @@ static int sienna_cichlid_append_powerplay_table(struct smu_context *smu) { struct atom_smc_dpm_info_v4_9 *smc_dpm_table; int index, ret; - I2cControllerConfig_t *table_member; + PPTable_beige_goby_t *ppt_beige_goby; + PPTable_t *ppt; + + if (smu->adev->ip_versions[MP1_HWIP][0] == IP_VERSION(11, 0, 13)) + ppt_beige_goby = smu->smu_table.driver_pptable; + else + ppt = smu->smu_table.driver_pptable; index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, smc_dpm_info); @@ -440,9 +446,13 @@ static int sienna_cichlid_append_powerplay_table(struct smu_context *smu) (uint8_t **)&smc_dpm_table); if (ret) return ret; - GET_PPTABLE_MEMBER(I2cControllers, &table_member); - memcpy(table_member, smc_dpm_table->I2cControllers, - sizeof(*smc_dpm_table) - sizeof(smc_dpm_table->table_header)); + + if (smu->adev->ip_versions[MP1_HWIP][0] == IP_VERSION(11, 0, 13)) + smu_memcpy_trailing(ppt_beige_goby, I2cControllers, BoardReserved, + smc_dpm_table, I2cControllers); + else + smu_memcpy_trailing(ppt, I2cControllers, BoardReserved, + smc_dpm_table, I2cControllers); return 0; } -- 2.39.2