package/kernel/mac80211/patches/750-rtlwifi-Align-private-space-in-rtl_priv-struct.patch

   1 From 60ce314d1750fef843e9db70050e09e49f838b69 Mon Sep 17 00:00:00 2001
   2 From: Larry Finger <Larry.Finger@lwfinger.net>
   3 Date: Thu, 19 Sep 2013 02:21:35 +0000
   4 Subject: rtlwifi: Align private space in rtl_priv struct
   5
   6 The private array at the end of the rtl_priv struct is not aligned.
   7 On ARM architecture, this causes an alignment trap and is fixed by aligning
   8 that array with __align(sizeof(void *)). That should properly align that
   9 space according to the requirements of all architectures.
  10
  11 Reported-by: Jason Andrews <jasona@cadence.com>
  12 Tested-by: Jason Andrews <jasona@cadence.com>
  13 Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
  14 Cc: Stable <stable@vger.kernel.org>
  15 Signed-off-by: John W. Linville <linville@tuxdriver.com>
  16 ---
  17 --- a/drivers/net/wireless/rtlwifi/wifi.h
  18 +++ b/drivers/net/wireless/rtlwifi/wifi.h
  19 @@ -2057,7 +2057,7 @@ struct rtl_priv {
  20            that it points to the data allocated
  21            beyond  this structure like:
  22            rtl_pci_priv or rtl_usb_priv */
  23 -       u8 priv[0];
  24 +       u8 priv[0] __aligned(sizeof(void *));
  25  };
  26
  27  #define rtl_priv(hw)           (((struct rtl_priv *)(hw)->priv))