From: Andreas Kemnade <andreas@kemnade.info>
To: Kalle Valo <kvalo@codeaurora.org>,
libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Andreas Kemnade <andreas@kemnade.info>
Subject: [PATCH 1/6] wireless:libertas: do not strip header for PS_MODE commands
Date: Wed, 6 Jan 2016 22:08:09 +0100 [thread overview]
Message-ID: <1452114494-6451-2-git-send-email-andreas@kemnade.info> (raw)
In-Reply-To: <1452114494-6451-1-git-send-email-andreas@kemnade.info>
struct cmd_ds_802_11_ps_mode
contains the command header and a pointer to it was
initialized with data points to the body which leads to
mis-interpretation of the cmd_ds_802_11_ps_mode.action member.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
---
drivers/net/wireless/libertas/cmd.c | 4 ++--
drivers/net/wireless/libertas/cmdresp.c | 5 ++++-
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 0387a5b..40467d6 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -957,7 +957,7 @@ static void lbs_queue_cmd(struct lbs_private *priv,
/* Exit_PS command needs to be queued in the header always. */
if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
- struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf;
+ struct cmd_ds_802_11_ps_mode *psm = (void *)cmdnode->cmdbuf;
if (psm->action == cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
if (priv->psstate != PS_STATE_FULL_POWER)
@@ -1387,7 +1387,7 @@ int lbs_execute_next_command(struct lbs_private *priv)
* PS command. Ignore it if it is not Exit_PS.
* otherwise send it down immediately.
*/
- struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
+ struct cmd_ds_802_11_ps_mode *psm = (void *)cmd;
lbs_deb_host(
"EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index e5442e8..701125f 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -123,7 +123,10 @@ int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
priv->cmd_timed_out = 0;
if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
- struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
+ /* struct cmd_ds_802_11_ps_mode also contains
+ * the header
+ */
+ struct cmd_ds_802_11_ps_mode *psmode = (void *)resp;
u16 action = le16_to_cpu(psmode->action);
lbs_deb_host(
--
2.1.4
next prev parent reply other threads:[~2016-01-06 21:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-06 21:08 [PATCH 0/6] wireless:libertas: ieee80211 powersave mode Andreas Kemnade
2016-01-06 21:08 ` Andreas Kemnade [this message]
2016-01-06 21:08 ` [PATCH 2/6] wireless:libertas: check whether bus can do more than polling Andreas Kemnade
2016-01-06 21:08 ` [PATCH 3/6] wireless:libertas: add an cfg80211 interface for powersaving Andreas Kemnade
2016-01-06 21:08 ` [PATCH 4/6] wireless:libertas: do not confirm sleep if commands are pending Andreas Kemnade
2016-01-06 21:08 ` [PATCH 5/6] wireless:libertas: go back to ps mode without commands pending Andreas Kemnade
2016-01-06 21:08 ` [PATCH 6/6] wireless:libertas: fix suspend problems Andreas Kemnade
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