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From: Jerome Pouiller <Jerome.Pouiller@silabs.com>
To: devel@driverdev.osuosl.org, linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Kalle Valo" <kvalo@codeaurora.org>,
	"David S . Miller" <davem@davemloft.net>,
	"Jérôme Pouiller" <jerome.pouiller@silabs.com>
Subject: [PATCH 07/17] staging: wfx: fix endianness of hif_req_read_mib fields
Date: Mon, 11 May 2020 17:49:20 +0200	[thread overview]
Message-ID: <20200511154930.190212-8-Jerome.Pouiller@silabs.com> (raw)
In-Reply-To: <20200511154930.190212-1-Jerome.Pouiller@silabs.com>

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

The structs hif_{req,cnf}_read_mib contain only little endian values.
Thus, it is necessary to fix byte ordering before to use them.
Especially, sparse detected wrong accesses to fields mib_id and length.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/hif_tx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 58013c019192..490a9de54faf 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -189,17 +189,17 @@ int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
 	wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body));
 	ret = wfx_cmd_send(wdev, hif, reply, buf_len, false);
 
-	if (!ret && mib_id != reply->mib_id) {
+	if (!ret && mib_id != le16_to_cpu(reply->mib_id)) {
 		dev_warn(wdev->dev,
 			 "%s: confirmation mismatch request\n", __func__);
 		ret = -EIO;
 	}
 	if (ret == -ENOMEM)
-		dev_err(wdev->dev,
-			"buffer is too small to receive %s (%zu < %d)\n",
-			get_mib_name(mib_id), val_len, reply->length);
+		dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n",
+			get_mib_name(mib_id), val_len,
+			le16_to_cpu(reply->length));
 	if (!ret)
-		memcpy(val, &reply->mib_data, reply->length);
+		memcpy(val, &reply->mib_data, le16_to_cpu(reply->length));
 	else
 		memset(val, 0xFF, val_len);
 	kfree(hif);
-- 
2.26.2


WARNING: multiple messages have this Message-ID (diff)
From: Jerome Pouiller <Jerome.Pouiller@silabs.com>
To: devel@driverdev.osuosl.org, linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"David S . Miller" <davem@davemloft.net>,
	Kalle Valo <kvalo@codeaurora.org>
Subject: [PATCH 07/17] staging: wfx: fix endianness of hif_req_read_mib fields
Date: Mon, 11 May 2020 17:49:20 +0200	[thread overview]
Message-ID: <20200511154930.190212-8-Jerome.Pouiller@silabs.com> (raw)
In-Reply-To: <20200511154930.190212-1-Jerome.Pouiller@silabs.com>

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

The structs hif_{req,cnf}_read_mib contain only little endian values.
Thus, it is necessary to fix byte ordering before to use them.
Especially, sparse detected wrong accesses to fields mib_id and length.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/hif_tx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 58013c019192..490a9de54faf 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -189,17 +189,17 @@ int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
 	wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body));
 	ret = wfx_cmd_send(wdev, hif, reply, buf_len, false);
 
-	if (!ret && mib_id != reply->mib_id) {
+	if (!ret && mib_id != le16_to_cpu(reply->mib_id)) {
 		dev_warn(wdev->dev,
 			 "%s: confirmation mismatch request\n", __func__);
 		ret = -EIO;
 	}
 	if (ret == -ENOMEM)
-		dev_err(wdev->dev,
-			"buffer is too small to receive %s (%zu < %d)\n",
-			get_mib_name(mib_id), val_len, reply->length);
+		dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n",
+			get_mib_name(mib_id), val_len,
+			le16_to_cpu(reply->length));
 	if (!ret)
-		memcpy(val, &reply->mib_data, reply->length);
+		memcpy(val, &reply->mib_data, le16_to_cpu(reply->length));
 	else
 		memset(val, 0xFF, val_len);
 	kfree(hif);
-- 
2.26.2

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  parent reply	other threads:[~2020-05-11 15:51 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-11 15:49 [PATCH 00/17] staging: wfx: fix support for big-endian hosts Jerome Pouiller
2020-05-11 15:49 ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 01/17] staging: wfx: fix use of cpu_to_le32 instead of le32_to_cpu Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 02/17] staging: wfx: take advantage of le32_to_cpup() Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 03/17] staging: wfx: fix cast operator Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 04/17] staging: wfx: fix wrong bytes order Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 05/17] staging: wfx: fix output of rx_stats on big endian hosts Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 06/17] staging: wfx: fix endianness of fields media_delay and tx_queue_delay Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` Jerome Pouiller [this message]
2020-05-11 15:49   ` [PATCH 07/17] staging: wfx: fix endianness of hif_req_read_mib fields Jerome Pouiller
2020-05-11 15:49 ` [PATCH 08/17] staging: wfx: fix access to le32 attribute 'ps_mode_error' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 09/17] staging: wfx: fix access to le32 attribute 'event_id' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 10/17] staging: wfx: fix access to le32 attribute 'indication_type' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 11/17] staging: wfx: declare the field 'packet_id' with native byte order Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 12/17] staging: wfx: fix endianness of the struct hif_ind_startup Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 13/17] staging: wfx: fix endianness of the field 'len' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 21:59   ` kbuild test robot
2020-05-11 21:59     ` kbuild test robot
2020-05-11 21:59     ` kbuild test robot
2020-05-12  7:43   ` Geert Uytterhoeven
2020-05-12  7:43     ` Geert Uytterhoeven
2020-05-12  9:25     ` Jérôme Pouiller
2020-05-12  9:25       ` Jérôme Pouiller
2020-05-11 15:49 ` [PATCH 14/17] staging: wfx: fix endianness of the field 'status' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 15/17] staging: wfx: fix endianness of the field 'num_tx_confs' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 16/17] staging: wfx: fix endianness of the field 'channel_number' Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller
2020-05-11 15:49 ` [PATCH 17/17] staging: wfx: update TODO Jerome Pouiller
2020-05-11 15:49   ` Jerome Pouiller

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