drivers/net: fix unresolved 64bit math in mellanox/mlx4/en_dcb_nl.c
Commit 109d244605
"net/mlx4_en: Set max rate-limit for a TC"
introduced 64 bit math operations into mlx4_en_dcbnl_ieee_setmaxrate()
causing the following final link failure on an x86_32 allmodconfig
ERROR: "__udivdi3" [drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko] undefined!
Convert it to use div_u64() instead.
Cc: Amir Vadai <amirv@mellanox.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -32,6 +32,7 @@
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*/
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#include <linux/dcbnl.h>
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#include <linux/math64.h>
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#include "mlx4_en.h"
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@ -227,9 +228,9 @@ static int mlx4_en_dcbnl_ieee_setmaxrate(struct net_device *dev,
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/* Convert from Kbps into HW units, rounding result up.
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* Setting to 0, means unlimited BW.
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*/
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tmp[i] =
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(maxrate->tc_maxrate[i] + MLX4_RATELIMIT_UNITS_IN_KB -
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1) / MLX4_RATELIMIT_UNITS_IN_KB;
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tmp[i] = div_u64(maxrate->tc_maxrate[i] +
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MLX4_RATELIMIT_UNITS_IN_KB - 1,
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MLX4_RATELIMIT_UNITS_IN_KB);
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}
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err = mlx4_en_config_port_scheduler(priv, NULL, tmp);
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