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 49A63746F for ; Sun, 17 Sep 2023 20:39:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A70F8C433C8; Sun, 17 Sep 2023 20:39:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694983151; bh=ioaW6UywnqBUDQ8gYelRgkdnGAleZi1nrag+zz21NOc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hsd5Oax3lcFwLPs0erZPxPiYttWXP/Wv5Yy/5YdCzKUG+sRMsGFRBOZMuOYXx4ITV 407rN+fyVIFVH/C3hg+Yn9khW6KLp5nl9leHJCA41VAOkOHdC9yzuKSXk8AmJ2Sdiw c5QkPwjATcoaS1m90G8CF3HnCHsHb45zoK6iRhTA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hao Chen , Jijie Shao , Paolo Abeni , Sasha Levin Subject: [PATCH 5.15 457/511] net: hns3: fix byte order conversion issue in hclge_dbg_fd_tcam_read() Date: Sun, 17 Sep 2023 21:14:44 +0200 Message-ID: <20230917191124.791289697@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191113.831992765@linuxfoundation.org> References: <20230917191113.831992765@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hao Chen [ Upstream commit efccf655e99b6907ca07a466924e91805892e7d3 ] req1->tcam_data is defined as "u8 tcam_data[8]", and we convert it as (u32 *) without considerring byte order conversion, it may result in printing wrong data for tcam_data. Convert tcam_data to (__le32 *) first to fix it. Fixes: b5a0b70d77b9 ("net: hns3: refactor dump fd tcam of debugfs") Signed-off-by: Hao Chen Signed-off-by: Jijie Shao Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- .../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c index dd8b73aebe6a5..63665e8a7c718 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c @@ -1450,7 +1450,7 @@ static int hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, bool sel_x, struct hclge_desc desc[3]; int pos = 0; int ret, i; - u32 *req; + __le32 *req; hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_FD_TCAM_OP, true); desc[0].flag |= cpu_to_le16(HCLGE_CMD_FLAG_NEXT); @@ -1475,22 +1475,22 @@ static int hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, bool sel_x, tcam_msg.loc); /* tcam_data0 ~ tcam_data1 */ - req = (u32 *)req1->tcam_data; + req = (__le32 *)req1->tcam_data; for (i = 0; i < 2; i++) pos += scnprintf(tcam_buf + pos, HCLGE_DBG_TCAM_BUF_SIZE - pos, - "%08x\n", *req++); + "%08x\n", le32_to_cpu(*req++)); /* tcam_data2 ~ tcam_data7 */ - req = (u32 *)req2->tcam_data; + req = (__le32 *)req2->tcam_data; for (i = 0; i < 6; i++) pos += scnprintf(tcam_buf + pos, HCLGE_DBG_TCAM_BUF_SIZE - pos, - "%08x\n", *req++); + "%08x\n", le32_to_cpu(*req++)); /* tcam_data8 ~ tcam_data12 */ - req = (u32 *)req3->tcam_data; + req = (__le32 *)req3->tcam_data; for (i = 0; i < 5; i++) pos += scnprintf(tcam_buf + pos, HCLGE_DBG_TCAM_BUF_SIZE - pos, - "%08x\n", *req++); + "%08x\n", le32_to_cpu(*req++)); return ret; } -- 2.40.1