netdev - [PATCH net-next 11/14] ethtool: Expand documentation of struct ethtool_perm

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Date:	Wed, 12 Feb 2014 22:14:48 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: [PATCH net-next 11/14] ethtool: Expand documentation of struct
 ethtool_perm_addr

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 include/uapi/linux/ethtool.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index e96aec0..79be416 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -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];
 };


-- 
Ben Hutchings
If more than one person is responsible for a bug, no one is at fault.

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