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ethtool: Expand documentation of struct ethtool_perm_addr

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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2014-02-12 22:14:48 +00:00 committed by David S. Miller
parent 590912298c
commit f432c095f7
1 changed files with 12 additions and 1 deletions
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13
include/uapi/linux/ethtool.h
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@ -614,8 +614,19 @@ struct ethtool_stats {
__u64 data[0];
};
/**
* struct ethtool_perm_addr - permanent hardware address
* @cmd: Command number = %ETHTOOL_GPERMADDR
* @size: On entry, the size of the buffer. On return, the size of the
* address. The command fails if the buffer is too small.
* @data: Buffer for the address
*
* Users must allocate the buffer immediately following this structure.
* A buffer size of %MAX_ADDR_LEN should be sufficient for any address
* type.
*/
struct ethtool_perm_addr {
__u32 cmd; /* ETHTOOL_GPERMADDR */
__u32 cmd;
__u32 size;
__u8 data[0];
};