[PATCH net] lib: packing: add documentation for pbuflen argument

[Vladimir Oltean <olteanv@gmail.com>]

Fixes sparse warning:

Function parameter or member 'pbuflen' not described in 'packing'

Fixes: 554aae35007e ("lib: Add support for generic packing operations")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
---
Hi David, since the original "packing" submission went in through your
tree, could you please take this patch as well?

 lib/packing.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/packing.c b/lib/packing.c
index 50d1e9f2f5a7..6ed72dccfdb5 100644
--- a/lib/packing.c
+++ b/lib/packing.c
@@ -73,6 +73,7 @@ static void adjust_for_msb_right_quirk(u64 *to_write, int *box_start_bit,
  * @endbit: The index (in logical notation, compensated for quirks) where
  *	    the packed value ends within pbuf. Must be smaller than, or equal
  *	    to, startbit.
+ * @pbuflen: The length in bytes of the packed buffer pointed to by @pbuf.
  * @op: If PACK, then uval will be treated as const pointer and copied (packed)
  *	into pbuf, between startbit and endbit.
  *	If UNPACK, then pbuf will be treated as const pointer and the logical
-- 
2.25.1