net/mlx4_en: Fix type mismatch for 32-bit systems

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is_power_of_2 expects unsigned long and we pass u64 max_val_cycles,
this will be truncated on 32 bit systems, and the result is not what we
were expecting.
div_u64 expects u32 as a second argument and we pass
max_val_cycles_rounded which is u64 hence it will always be truncated.
Fix was tested on both 64 and 32 bit systems and got same results for
max_val_cycles and max_val_cycles_rounded.

Fixes: 4850cf4581 ("net/mlx4_en: Resolve dividing by zero in 32-bit system")
Signed-off-by: Slava Shwartsman <slavash@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Slava Shwartsman 2016-12-29 18:37:12 +02:00 • committed by David S. Miller

parent c1d5f8ff80

commit 61b6034c6c

1 changed files with 2 additions and 6 deletions

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drivers/net/ethernet/mellanox/mlx4/en_clock.c

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