batman-adv: Replace gw_reselect divisor with simple shift

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The gw_factor is divided by BATADV_TQ_LOCAL_WINDOW_SIZE ** 2 * 64. But the
rest of the calculation has nothing to do with the tq window size and
therefore the calculation is just (tmp_gw_factor / (64 ** 3)).

Replace it with a simple shift to avoid a costly 64-bit divide when the
max_gw_factor is changed from u32 to u64. This type change is necessary
to avoid an overflow bug.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>

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Sven Eckelmann 2015-06-22 09:13:23 +02:00 • committed by Antonio Quartulli

parent 07a51cd379

commit e071d93eb4

1 changed files with 1 additions and 5 deletions

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6

net/batman-adv/gateway_client.c

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