From: Bing Zhao <bzhao@marvell.com>
To: <linux-wireless@vger.kernel.org>
Cc: "John W. Linville" <linville@tuxdriver.com>,
Dan Carpenter <dan.carpenter@oracle.com>,
Amitkumar Karwar <akarwar@marvell.com>,
Avinash Patil <patila@marvell.com>,
Nishant Sarmukadam <nishants@marvell.com>,
Frank Huang <frankh@marvell.com>, Bing Zhao <bzhao@marvell.com>
Subject: [PATCH 2/6] mwifiex: replace u16 with __le16 in struct mwifiex_types_power_group
Date: Tue, 22 Oct 2013 15:24:43 -0700 [thread overview]
Message-ID: <1382480687-12720-3-git-send-email-bzhao@marvell.com> (raw)
In-Reply-To: <1382480687-12720-1-git-send-email-bzhao@marvell.com>
From: Amitkumar Karwar <akarwar@marvell.com>
__le16 to u16 conversion is missing for "pg_tlv_hdr->length"
in mwifiex_get_power_level(). This creates a problem on big
endian machines.
It is resolved by changing definition of the structure
and making required endianness changes.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
---
drivers/net/wireless/mwifiex/fw.h | 4 ++--
drivers/net/wireless/mwifiex/sta_cmd.c | 4 ++--
drivers/net/wireless/mwifiex/sta_cmdresp.c | 4 ++--
drivers/net/wireless/mwifiex/sta_ioctl.c | 5 +++--
4 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index f80f30b..c8385ec 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -1020,8 +1020,8 @@ struct mwifiex_power_group {
} __packed;
struct mwifiex_types_power_group {
- u16 type;
- u16 length;
+ __le16 type;
+ __le16 length;
} __packed;
struct host_cmd_ds_txpwr_cfg {
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index 7d66018..2181ee2 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -239,14 +239,14 @@ static int mwifiex_cmd_tx_power_cfg(struct host_cmd_ds_command *cmd,
memmove(cmd_txp_cfg, txp,
sizeof(struct host_cmd_ds_txpwr_cfg) +
sizeof(struct mwifiex_types_power_group) +
- pg_tlv->length);
+ le16_to_cpu(pg_tlv->length));
pg_tlv = (struct mwifiex_types_power_group *) ((u8 *)
cmd_txp_cfg +
sizeof(struct host_cmd_ds_txpwr_cfg));
cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) +
sizeof(struct mwifiex_types_power_group) +
- pg_tlv->length);
+ le16_to_cpu(pg_tlv->length));
} else {
memmove(cmd_txp_cfg, txp, sizeof(*txp));
}
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 58a6013..bdf50fd 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -340,7 +340,7 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg));
pg = (struct mwifiex_power_group *)
((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
- length = pg_tlv_hdr->length;
+ length = le16_to_cpu(pg_tlv_hdr->length);
if (length > 0) {
max_power = pg->power_max;
min_power = pg->power_min;
@@ -356,7 +356,7 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
length -= sizeof(struct mwifiex_power_group);
}
- if (pg_tlv_hdr->length > 0) {
+ if (le16_to_cpu(pg_tlv_hdr->length) > 0) {
priv->min_tx_power_level = (u8) min_power;
priv->max_tx_power_level = (u8) max_power;
}
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index f084412..c8e029d 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -638,8 +638,9 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
txp_cfg->mode = cpu_to_le32(1);
pg_tlv = (struct mwifiex_types_power_group *)
(buf + sizeof(struct host_cmd_ds_txpwr_cfg));
- pg_tlv->type = TLV_TYPE_POWER_GROUP;
- pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
+ pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
+ pg_tlv->length =
+ cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
pg = (struct mwifiex_power_group *)
(buf + sizeof(struct host_cmd_ds_txpwr_cfg)
+ sizeof(struct mwifiex_types_power_group));
--
1.8.2.3
next prev parent reply other threads:[~2013-10-22 22:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-22 22:24 [PATCH 0/6] mwifiex: potential integer underflow and invalid mem access Bing Zhao
2013-10-22 22:24 ` [PATCH 1/6] mwifiex: potential integer underflow in mwifiex_ret_wmm_get_status() Bing Zhao
2013-10-22 22:24 ` Bing Zhao [this message]
2013-10-22 22:24 ` [PATCH 3/6] mwifiex: fix invalid memory access in mwifiex_get_power_level() Bing Zhao
2013-10-22 22:24 ` [PATCH 4/6] mwifiex: fix invalid memory access in mwifiex_ret_tx_rate_cfg() Bing Zhao
2013-10-22 22:24 ` [PATCH 5/6] mwifiex: fix invalid memory access in mwifiex_update_autoindex_ies() Bing Zhao
2013-10-22 22:24 ` [PATCH 6/6] mwifiex: improvements in mwifiex_ret_tx_power_cfg() Bing Zhao
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