Re: [PATCH 0/7] RDMA: hfi1: cpumasks usage fixes
From: Leon Romanovsky
Date: Wed Jun 25 2025 - 06:41:50 EST
On Mon, Jun 23, 2025 at 12:23:36PM -0400, Dennis Dalessandro wrote:
> On 6/21/25 11:03 AM, Yury Norov wrote:
> > On Thu, Jun 12, 2025 at 11:12:29AM +0300, Leon Romanovsky wrote:
> >> On Wed, Jun 04, 2025 at 03:39:36PM -0400, Yury Norov wrote:
> >>> The driver uses cpumasks API in a non-optimal way; partially because of
> >>> absence of proper functions. Fix this and nearby logic.
> >>>
> >>> Yury Norov [NVIDIA] (7):
> >>> cpumask: add cpumask_clear_cpus()
> >>> RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()
> >>> RDMA: hfi1: simplify find_hw_thread_mask()
> >>> RDMA: hfi1: simplify init_real_cpu_mask()
> >>> RDMA: hfi1: use rounddown in find_hw_thread_mask()
> >>> RDMA: hfi1: simplify hfi1_get_proc_affinity()
> >>> RDMI: hfi1: drop cpumask_empty() call in hfi1/affinity.c
> >>>
> >>> drivers/infiniband/hw/hfi1/affinity.c | 96 +++++++++++----------------
> >>> include/linux/cpumask.h | 12 ++++
> >>> 2 files changed, 49 insertions(+), 59 deletions(-)
> >>
> >> Dennis?
> >
> > So?.. Any feedback?
>
> I'm ambivalent about this patch series. It looks OK but I don't think it's
> really fixing anything.
Yeas, I applied because more code was deleted than added.