[ 087/110] rtlwifi: Align private space in rtl_priv struct

From: Greg Kroah-Hartman
Date: Fri Oct 11 2013 - 16:25:46 EST


3.10-stable review patch. If anyone has any objections, please let me know.

------------------

From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>

commit 60ce314d1750fef843e9db70050e09e49f838b69 upstream.

The private array at the end of the rtl_priv struct is not aligned.
On ARM architecture, this causes an alignment trap and is fixed by aligning
that array with __align(sizeof(void *)). That should properly align that
space according to the requirements of all architectures.

Reported-by: Jason Andrews <jasona@xxxxxxxxxxx>
Tested-by: Jason Andrews <jasona@xxxxxxxxxxx>
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/wireless/rtlwifi/wifi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -2057,7 +2057,7 @@ struct rtl_priv {
that it points to the data allocated
beyond this structure like:
rtl_pci_priv or rtl_usb_priv */
- u8 priv[0];
+ u8 priv[0] __aligned(sizeof(void *));
};

#define rtl_priv(hw) (((struct rtl_priv *)(hw)->priv))


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