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net: Rework netdev_drivername() to avoid warning.

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This interface uses a temporary buffer, but for no real reason.
And now can generate warnings like:

net/sched/sch_generic.c: In function dev_watchdog
net/sched/sch_generic.c:254:10: warning: unused variable drivername

Just return driver->name directly or "".

Reported-by: Connor Hansen <cmdkhh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-06-06 16:41:33 -07:00
commit 3019de124b
3 changed files with 7 additions and 14 deletions
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2
include/linux/netdevice.h
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@ -2555,7 +2555,7 @@ extern void netdev_class_remove_file(struct class_attribute *class_attr);
extern struct kobj_ns_type_operations net_ns_type_operations;
extern char *netdev_drivername(const struct net_device *dev, char *buffer, int len);
extern const char *netdev_drivername(const struct net_device *dev);
extern void linkwatch_run_queue(void);