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net: ethtool: Fix documentation of ethtool_sprintf()

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commit f55d8e60f10909dbc5524e261041e1d28d7d20d8 upstream.

This function takes a pointer to a pointer, unlike sprintf() which is
passed a plain pointer. Fix up the documentation to make this clear.

Fixes: 7888fe53b7 ("ethtool: Add common function for filling out strings")
Cc: Alexander Duyck <alexanderduyck@fb.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20231028192511.100001-1-andrew@lunn.ch
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrew Lunn 2023-10-28 21:25:11 +02:00 committed by Greg Kroah-Hartman
parent 57e35d9229
commit eef592e71a
1 changed files with 2 additions and 2 deletions
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4
include/linux/ethtool.h
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@ -836,10 +836,10 @@ int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
/**
* ethtool_sprintf - Write formatted string to ethtool string data
* @data: Pointer to start of string to update
* @data: Pointer to a pointer to the start of string to update
* @fmt: Format of string to write
*
* Write formatted string to data. Update data to point at start of
* 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, ...);