Don't cast struct foo * to struct list_head *, it's safe only when
the list member is the first member of struct foo.
Also don't cast struct list_head * to struct foo *.
BTW: I'm not so sure where this patch should go to.
Signed-off-by: Li Zefan <[EMAIL PROTECTED]>
---
drivers/net/wireless/libertas/cmd.c | 22 +++++++++++-----------
1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/libertas/cmd.c
b/drivers/net/wireless/libertas/cmd.c
index be5cfd8..0fce9bb 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -946,11 +946,10 @@ void libertas_queue_cmd(wlan_adapter * adapter, struct
cmd_ctrl_node *cmdnode, u
spin_lock_irqsave(&adapter->driver_lock, flags);
if (addtail) {
- list_add_tail((struct list_head *)cmdnode,
- &adapter->cmdpendingq);
+ list_add_tail(&cmdnode->list, &adapter->cmdpendingq);
adapter->nr_cmd_pending++;
} else
- list_add((struct list_head *)cmdnode, &adapter->cmdpendingq);
+ list_add(&cmdnode->list, &adapter->cmdpendingq);
spin_unlock_irqrestore(&adapter->driver_lock, flags);
@@ -1068,7 +1067,7 @@ void __libertas_cleanup_and_insert_cmd(wlan_private *
priv, struct cmd_ctrl_node
return;
cleanup_cmdnode(ptempcmd);
- list_add_tail((struct list_head *)ptempcmd, &adapter->cmdfreeq);
+ list_add_tail(&ptempcmd->list, &adapter->cmdfreeq);
}
static void libertas_cleanup_and_insert_cmd(wlan_private * priv, struct
cmd_ctrl_node *ptempcmd)
@@ -1558,8 +1557,9 @@ struct cmd_ctrl_node
*libertas_get_free_cmd_ctrl_node(wlan_private * priv)
spin_lock_irqsave(&adapter->driver_lock, flags);
if (!list_empty(&adapter->cmdfreeq)) {
- tempnode = (struct cmd_ctrl_node *)adapter->cmdfreeq.next;
- list_del((struct list_head *)tempnode);
+ tempnode = list_first_entry(&adapter->cmdfreeq,
+ struct cmd_ctrl_node, list);
+ list_del(&tempnode->list);
} else {
lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
tempnode = NULL;
@@ -1656,8 +1656,8 @@ int libertas_execute_next_command(wlan_private * priv)
}
if (!list_empty(&adapter->cmdpendingq)) {
- cmdnode = (struct cmd_ctrl_node *)
- adapter->cmdpendingq.next;
+ cmdnode = list_first_entry(&adapter->cmdpendingq,
+ struct cmd_ctrl_node, list);
}
spin_unlock_irqrestore(&adapter->driver_lock, flags);
@@ -1721,7 +1721,7 @@ int libertas_execute_next_command(wlan_private * priv)
cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
lbs_deb_host(
"EXEC_NEXT_CMD: ignore ENTER_PS
cmd\n");
- list_del((struct list_head *)cmdnode);
+ list_del(&cmdnode->list);
libertas_cleanup_and_insert_cmd(priv,
cmdnode);
ret = 0;
@@ -1732,7 +1732,7 @@ int libertas_execute_next_command(wlan_private * priv)
(adapter->psstate == PS_STATE_PRE_SLEEP)) {
lbs_deb_host(
"EXEC_NEXT_CMD: ignore EXIT_PS
cmd in sleep\n");
- list_del((struct list_head *)cmdnode);
+ list_del(&cmdnode->list);
libertas_cleanup_and_insert_cmd(priv,
cmdnode);
adapter->needtowakeup = 1;
@@ -1744,7 +1744,7 @@ int libertas_execute_next_command(wlan_private * priv)
"EXEC_NEXT_CMD: sending EXIT_PS\n");
}
}
- list_del((struct list_head *)cmdnode);
+ list_del(&cmdnode->list);
lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
le16_to_cpu(cmdptr->command));
DownloadcommandToStation(priv, cmdnode);
--
1.5.3.rc7
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