From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 318EB1586C7; Thu, 1 Aug 2024 00:23:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722471819; cv=none; b=BDoafsM0AqAe2YKiRpexjq/M6y1KTJWjN1g2y4GnC10HOPmhGoUu7iduBiDSvTTO/IyZiIZMHdsdxdfUrFxX8pnsokGksrX2fOqNYsrAGgrZUAHLkIX7kkFWJgv2+Bq2se3glmWnK36XMcFdEDwhWy+fzL35v7ctymsR1PbROm8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722471819; c=relaxed/simple; bh=I99g2PftbPR422YAsYQ8u0PD9IpmIFwk0pj8Ih3gMSM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cXdnSJsEP8hAH4ui8ZkgvXblqYwZ9zHtYHpqS56HeQqyHcqfHoFznRWwCU7/krXWEc6TGUmrXbsDMhTWywLe6/q9MWWI6IgGA7+eYvgdZG6BMTrKHms0cdDIKpScRxkEitMz1eBXHn/rCHoaMJgfctZnHdpk/Efk9mjMLujIJhs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GwBIvYWx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GwBIvYWx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20835C116B1; Thu, 1 Aug 2024 00:23:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722471819; bh=I99g2PftbPR422YAsYQ8u0PD9IpmIFwk0pj8Ih3gMSM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GwBIvYWxILi7bQD5aF4ONwNpIXoy8zWHGHlhVsCpOaDoS4zQ+bHTcy8fdqkOxYqS5 qhFvDNyjlPm6vs91bCoawIcgTSgQRDEhfrePkxpHvPPNjZB5HdKP0gvwuTIrVr2/u1 op3DJ+TyGutAvlgiuEcMCLlck9G9KMlEkQc1+MjjOJ5MEVsgBQpLXfwcswb/Su3qKm WI6TkEqBStIn+ipGmsruZxa++Ol67nVT5lySFblG2tySxVn6ZzB0rIziz6HlsszeK8 PiZaZ25f0TpHblEKVhCjto9VlWy6rj23rMtAs+GGZ/M2/tmj2vHSQ9xWXVkXL2zmtK dkvbSos46HwtA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Ma Jun , Yang Wang , Alex Deucher , Sasha Levin , kenneth.feng@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, mario.limonciello@amd.com, alexious@zju.edu.cn, sunran001@208suo.com, jesse.zhang@amd.com, ruanjinjie@huawei.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.6 30/83] drm/amdgpu/pm: Check input value for CUSTOM profile mode setting on legacy SOCs Date: Wed, 31 Jul 2024 20:17:45 -0400 Message-ID: <20240801002107.3934037-30-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240801002107.3934037-1-sashal@kernel.org> References: <20240801002107.3934037-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.43 Content-Transfer-Encoding: 8bit From: Ma Jun [ Upstream commit df0a9bd92fbbd3fcafcb2bce6463c9228a3e6868 ] Check the input value for CUSTOM profile mode setting on legacy SOCs. Otherwise we may use uninitalized value of input[] Signed-off-by: Ma Jun Reviewed-by: Yang Wang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c | 2 +- drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c | 8 ++++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c index aa91730e4eaff..4600bdeeede4f 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c @@ -5640,7 +5640,7 @@ static int smu7_set_power_profile_mode(struct pp_hwmgr *hwmgr, long *input, uint mode = input[size]; switch (mode) { case PP_SMC_POWER_PROFILE_CUSTOM: - if (size < 8 && size != 0) + if (size != 8 && size != 0) return -EINVAL; /* If only CUSTOM is passed in, use the saved values. Check * that we actually have a CUSTOM profile by ensuring that diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c index 3b33af30eb0fb..e16d7919fd097 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c @@ -4091,9 +4091,11 @@ static int vega20_set_power_profile_mode(struct pp_hwmgr *hwmgr, long *input, ui if (power_profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) { struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend); - if (size == 0 && !data->is_custom_profile_set) + + if (size != 10 && size != 0) return -EINVAL; - if (size < 10 && size != 0) + + if (size == 0 && !data->is_custom_profile_set) return -EINVAL; result = vega20_get_activity_monitor_coeff(hwmgr, @@ -4155,6 +4157,8 @@ static int vega20_set_power_profile_mode(struct pp_hwmgr *hwmgr, long *input, ui activity_monitor.Fclk_PD_Data_error_coeff = input[8]; activity_monitor.Fclk_PD_Data_error_rate_coeff = input[9]; break; + default: + return -EINVAL; } result = vega20_set_activity_monitor_coeff(hwmgr, -- 2.43.0