From nobody Wed Dec 17 14:13:56 2025 Received: from out30-118.freemail.mail.aliyun.com (out30-118.freemail.mail.aliyun.com [115.124.30.118]) (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 A4C244C96 for ; Mon, 24 Jun 2024 03:12:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.118 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719198727; cv=none; b=AXRHA9eg+MSUPTBDMSR+7szGwNCWP28eA5b81tmzQymIhwfXL1Teg3+8aXnHYu1YpReebw8uEpzBaJrSuJVkLf73n/cCWj80Qi+C2pIbFKNE2VjznmvEN3GEhih3D9XeqvvdbF5sM5dwTdjyzBjW68tO3wPLlw2ivUAVla7IMm0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719198727; c=relaxed/simple; bh=s5eSxh3w5ru8v9B7MPhDa91a374easaRZEOALaDA1so=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=dtPdIKRK/yo+dHnpRT/31vG4j+9kal8FV9sjBXPghrcFf9Lqxraouysfa/68/GyqyxyiGSY+/HCb3bB4OmMT1WxK8s3n89VFmjqSNztw1cgQ46qWCVf12yMqh9vW1dkqsOOIWbaeqfBYri6kbyWjN50rrBtMjEPN6kK9p1XdAXo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=p2rJNopE; arc=none smtp.client-ip=115.124.30.118 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="p2rJNopE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1719198722; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=h/k/C2qs1pKcv+sRC2nv2zMOr9MwmxizBcFEz86gVOo=; b=p2rJNopEd7iWvJly9K0f5VwSwixke9OHgrAbWTVrPH8EZkR9sUtt5KEeqKMLDgcA2U4YI+UgDvGWI4qkYDXSKD+kd0pmZvjHP0AR3pHbmYhl5oU6U6NYwfJV7mIVqy03vey+QnWpG6ErHvZjdAKhJEC+5usIAZxjscPdkjuAUCI= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045075189;MF=jiapeng.chong@linux.alibaba.com;NM=1;PH=DS;RN=13;SR=0;TI=SMTPD_---0W916qKp_1719198719; Received: from localhost(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0W916qKp_1719198719) by smtp.aliyun-inc.com; Mon, 24 Jun 2024 11:12:02 +0800 From: Jiapeng Chong To: harry.wentland@amd.com Cc: sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jiapeng Chong , Abaci Robot Subject: [PATCH] drm/amd/display: Use ARRAY_SIZE for array length Date: Mon, 24 Jun 2024 11:11:58 +0800 Message-Id: <20240624031158.98502-1-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 2.20.1.7.g153144c Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use of macro ARRAY_SIZE to calculate array size minimizes the redundant code and improves code reusability. ./drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c:164:45-46: WARNING: U= se ARRAY_SIZE. ./drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c:183:47-48: WARNING: U= se ARRAY_SIZE. ./drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c:237:45-46: WARNING: U= se ARRAY_SIZE. ./drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c:257:47-48: WARNING: U= se ARRAY_SIZE. Reported-by: Abaci Robot Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=3D9405 Signed-off-by: Jiapeng Chong --- drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c b/drivers/= gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c index 1b2df97226a3..7ecf76aea950 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c @@ -161,8 +161,7 @@ static enum mod_hdcp_status read(struct mod_hdcp *hdcp, return MOD_HDCP_STATUS_DDC_FAILURE; =20 if (is_dp_hdcp(hdcp)) { - int num_dpcd_addrs =3D sizeof(hdcp_dpcd_addrs) / - sizeof(hdcp_dpcd_addrs[0]); + int num_dpcd_addrs =3D ARRAY_SIZE(hdcp_dpcd_addrs); if (msg_id >=3D num_dpcd_addrs) return MOD_HDCP_STATUS_DDC_FAILURE; =20 @@ -180,8 +179,7 @@ static enum mod_hdcp_status read(struct mod_hdcp *hdcp, data_offset +=3D cur_size; } } else { - int num_i2c_offsets =3D sizeof(hdcp_i2c_offsets) / - sizeof(hdcp_i2c_offsets[0]); + int num_i2c_offsets =3D ARRAY_SIZE(hdcp_i2c_offsets); if (msg_id >=3D num_i2c_offsets) return MOD_HDCP_STATUS_DDC_FAILURE; =20 @@ -234,8 +232,7 @@ static enum mod_hdcp_status write(struct mod_hdcp *hdcp, return MOD_HDCP_STATUS_DDC_FAILURE; =20 if (is_dp_hdcp(hdcp)) { - int num_dpcd_addrs =3D sizeof(hdcp_dpcd_addrs) / - sizeof(hdcp_dpcd_addrs[0]); + int num_dpcd_addrs =3D ARRAY_SIZE(hdcp_dpcd_addrs); if (msg_id >=3D num_dpcd_addrs) return MOD_HDCP_STATUS_DDC_FAILURE; =20 @@ -254,8 +251,7 @@ static enum mod_hdcp_status write(struct mod_hdcp *hdcp, data_offset +=3D cur_size; } } else { - int num_i2c_offsets =3D sizeof(hdcp_i2c_offsets) / - sizeof(hdcp_i2c_offsets[0]); + int num_i2c_offsets =3D ARRAY_SIZE(hdcp_i2c_offsets); if (msg_id >=3D num_i2c_offsets) return MOD_HDCP_STATUS_DDC_FAILURE; =20 --=20 2.20.1.7.g153144c