diff options
| author | Ivo van Doorn <ivdoorn@gmail.com> | 2008-06-16 21:57:11 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-27 00:49:16 +0400 |
| commit | c1d35dfa0f7d75ba14c442143a9ad8e232d3edfb (patch) | |
| tree | 9266a9be1068c66b6c80f0f5a73e47af88acd584 | |
| parent | d74f5ba473b915e5d4ea1ed391984bb62d9de8b1 (diff) | |
| download | linux-c1d35dfa0f7d75ba14c442143a9ad8e232d3edfb.tar.xz | |
rt2x00: Fix sparse warning on nested container_of()
Sparse produces warnings about nested contain_of() statements,
this means that lines like:
interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
will upset sparse.
Add a new macro to rt2x00usb.h which will convert to device
structure to the usb_device pointer in 2 steps to prevent this
sparse warning.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2500usb.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.h | 6 |
3 files changed, 10 insertions, 8 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 6b6e7b93d2ad..d0958008c013 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1672,8 +1672,7 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev) static int rt2500usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) { struct rt2x00_dev *rt2x00dev = hw->priv; - struct usb_device *usb_dev = - interface_to_usbdev(to_usb_interface(rt2x00dev->dev)); + struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif); struct queue_entry_priv_usb_bcn *bcn_priv; diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index b94c461fbaf9..5593b9a83108 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -40,8 +40,7 @@ int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev, void *buffer, const u16 buffer_length, const int timeout) { - struct usb_device *usb_dev = - interface_to_usbdev(to_usb_interface(rt2x00dev->dev)); + struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); int status; unsigned int i; unsigned int pipe = @@ -162,8 +161,7 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb) int rt2x00usb_write_tx_data(struct queue_entry *entry) { struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - struct usb_device *usb_dev = - interface_to_usbdev(to_usb_interface(rt2x00dev->dev)); + struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); struct queue_entry_priv_usb *entry_priv = entry->priv_data; struct skb_frame_desc *skbdesc; u32 length; @@ -319,8 +317,7 @@ EXPORT_SYMBOL_GPL(rt2x00usb_disable_radio); void rt2x00usb_init_rxentry(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry) { - struct usb_device *usb_dev = - interface_to_usbdev(to_usb_interface(rt2x00dev->dev)); + struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); struct queue_entry_priv_usb *entry_priv = entry->priv_data; usb_fill_bulk_urb(entry_priv->urb, usb_dev, diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index b1187c812e7f..aad794adf52c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -26,6 +26,12 @@ #ifndef RT2X00USB_H #define RT2X00USB_H +#define to_usb_device_intf(d) \ +({ \ + struct usb_interface *intf = to_usb_interface(d); \ + interface_to_usbdev(intf); \ +}) + /* * This variable should be used with the * usb_driver structure initialization. |