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| author |   Alexander Lobakin <alobakin@dlink.ru> | 2020-02-17 10:36:29 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-03-04 13:11:49 -0400 |
| commit | 91b74bf5310b22ac3286d8e9b5354b77f41af178 (patch) | |
| tree | aaa2fb032f43d9dd07d72a3d8d8b06203dc013ee /drivers/infiniband/hw/mlx5/cong.c | |
| parent | Merge tag 'v5.6-rc4' into rdma.git for-next (diff) | |
| download | linux-dev-91b74bf5310b22ac3286d8e9b5354b77f41af178.tar.xz linux-dev-91b74bf5310b22ac3286d8e9b5354b77f41af178.zip | |
IB/mlx5: Optimize u64 division on 32-bit arches
Commit f164be8c0366 ("IB/mlx5: Extend caps stage to handle VAR
capabilities") introduced a straight "/" division of the u64 variable
"bar_size".
This was fixed with commit 685eff513183 ("IB/mlx5: Use div64_u64 for
num_var_hw_entries calculation"). However, div64_u64() is redundant here
as mlx5_var_table::stride_size is of type u32. Make the actual code way
more optimized on 32-bit kernels using div_u64() and fix 80 chars
break-through by the way.
Fixes: 685eff513183 ("IB/mlx5: Use div64_u64 for num_var_hw_entries calculation")
Link: https://lore.kernel.org/r/20200217073629.8051-1-alobakin@dlink.ru
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cong.c')
0 files changed, 0 insertions, 0 deletions