diff options
| author | Alexander Lobakin <[email protected]> | 2020-02-17 10:36:29 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2020-03-04 13:11:49 -0400 |
| commit | 91b74bf5310b22ac3286d8e9b5354b77f41af178 (patch) | |
| tree | aaa2fb032f43d9dd07d72a3d8d8b06203dc013ee /tools/perf/scripts/python/syscall-counts.py | |
| parent | c13cac2a21b44c6d18a2cf5485f26eee0fb686f6 (diff) | |
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/[email protected]
Signed-off-by: Alexander Lobakin <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions