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ethtool: Add common function for filling out strings

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Add a function to handle the common pattern of printing a string into the
ethtool strings interface and incrementing the string pointer by the
ETH_GSTRING_LEN. Most of the drivers end up doing this and several have
implemented their own versions of this function so it would make sense to
consolidate on one implementation.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck
2021-03-16 17:30:36 -07:00
committed by David S. Miller
parent 0c88eda9f5
commit 7888fe53b7
2 changed files with 21 additions and 0 deletions
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9
include/linux/ethtool.h
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@@ -571,4 +571,13 @@ struct ethtool_phy_ops {
*/
void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
/**
* ethtool_sprintf - Write formatted string to ethtool string data
* @data: Pointer to start of string to update
* @fmt: Format of string to write
*
* Write formatted string to data. Update data to point at start of
* next string.
*/
extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
#endif /* _LINUX_ETHTOOL_H */