Re: [PATCH 0/7] cpumask: repair cpumask_check()

[Yury Norov]

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On Mon, Sep 19, 2022 at 2:06 PM Yury Norov <yury.norov@xxxxxxxxx> wrote:
>
> After switching cpumask to use nr_cpu_ids in [1], cpumask_check() started
> generating many false-positive warnings. There are some more issues with
> the cpumask_check() that brake it.
>
> This series fixes cpumask_check() mess and addresses most of the
> false-positive warnings observed on boot of x86_64 and arm64.
>
> [1] https://lore.kernel.org/lkml/20220905230820.3295223-4-yury.norov@xxxxxxxxx/T/
>
> Yury Norov (7):
>   cpumask: fix checking valid cpu range
>   net: fix cpu_max_bits_warn() usage in netif_attrmask_next{,_and}
>   cpumask: switch for_each_cpu{,_not} to use for_each_bit()
>   lib/find_bit: add find_next{,_and}_bit_wrap
>   lib/bitmap: introduce for_each_set_bit_wrap() macro
>   lib/find: optimize for_each() macros
>   lib/bitmap: add tests for for_each() iterators
>
>  include/linux/cpumask.h   |  37 ++----
>  include/linux/find.h      | 140 +++++++++++++++++-----
>  include/linux/netdevice.h |  10 +-
>  lib/cpumask.c             |  12 +-
>  lib/test_bitmap.c         | 244 +++++++++++++++++++++++++++++++++++++-
>  5 files changed, 375 insertions(+), 68 deletions(-)
>
> --
> 2.34.1
>