batman-adv: change compat code to remove sparse warning
Commit Message
The latest compat patch fixing rtnl ops compile errors from 2.6.32
("batman-adv: add compat support for the new netlink ops") fixes
the compilation, but leaves some sparse errors:
batman-adv/soft-interface.c:573:10: warning: Initializer entry defined twice
batman-adv/soft-interface.c:574:10: also defined here
This patch uses another approach by moving the initializers in a dummy
struct instead. This also removes the sparse errors.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
---
compat.h | 30 +++++++++++++-----------------
1 file changed, 13 insertions(+), 17 deletions(-)
Comments
On Thu, Feb 28, 2013 at 12:08:47 +0100, Simon Wunderlich wrote:
> The latest compat patch fixing rtnl ops compile errors from 2.6.32
> ("batman-adv: add compat support for the new netlink ops") fixes
> the compilation, but leaves some sparse errors:
> batman-adv/soft-interface.c:573:10: warning: Initializer entry defined twice
> batman-adv/soft-interface.c:574:10: also defined here
>
> This patch uses another approach by moving the initializers in a dummy
> struct instead. This also removes the sparse errors.
>
> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Thank you Simon!
Cheers,
On Thursday, February 28, 2013 19:13:30 Antonio Quartulli wrote:
> On Thu, Feb 28, 2013 at 12:08:47 +0100, Simon Wunderlich wrote:
> > The latest compat patch fixing rtnl ops compile errors from 2.6.32
> > ("batman-adv: add compat support for the new netlink ops") fixes
> > the compilation, but leaves some sparse errors:
> > batman-adv/soft-interface.c:573:10: warning: Initializer entry defined
> > twice batman-adv/soft-interface.c:574:10: also defined here
> >
> > This patch uses another approach by moving the initializers in a dummy
> > struct instead. This also removes the sparse errors.
> >
> > Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
>
> Acked-by: Antonio Quartulli <ordex@autistici.org>
Applied in revision 2caa9e1.
Thanks,
Marek
@@ -135,23 +135,19 @@ static inline int batadv_param_set_copystring(const char *val,
#define kstrtoul strict_strtoul
#define kstrtol strict_strtol
-#define batadv_softif_slave_add(x, y) \
-batadv_softif_slave_add(struct net_device *dev, struct ifreq *rq, int cmd)\
-{\
- return -EOPNOTSUPP;\
-}\
-static int __attribute__((unused)) __batadv_softif_slave_add(x, y)
-
-#define batadv_softif_slave_del(x, y) \
-__batadv_softif_slave_del(struct net_device *dev, struct net_device *slave_dev);\
-static int batadv_softif_slave_del(struct net_device *dev, struct ifreq *rq, int cmd)\
-{\
- return -EOPNOTSUPP;\
-}\
-static int __attribute__((unused)) __batadv_softif_slave_del(x, y)
-
-#define ndo_add_slave ndo_do_ioctl
-#define ndo_del_slave ndo_do_ioctl
+/* Hack for removing ndo_add/del_slave at the end of net_device_ops.
+ * This is somewhat ugly because it requires that ndo_validate_addr
+ * is at the end of this struct in soft-interface.c.
+ */
+#define ndo_validate_addr \
+ ndo_validate_addr = eth_validate_addr, \
+}; \
+static const struct { \
+ void *ndo_validate_addr; \
+ void *ndo_add_slave; \
+ void *ndo_del_slave; \
+} __attribute__((unused)) __useless_ops1 = { \
+ .ndo_validate_addr
#endif /* < KERNEL_VERSION(2, 6, 39) */