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Message-ID: <YaM3ZeQS4tHzsRkK@kroah.com>
Date: Sun, 28 Nov 2021 09:01:41 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Yury Norov <yury.norov@...il.com>
Cc: linux-kernel@...r.kernel.org,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
"Paul E. McKenney" <paulmck@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Alexey Klimov <aklimov@...hat.com>,
Amitkumar Karwar <amitkarwar@...il.com>,
Andi Kleen <ak@...ux.intel.com>, Andrew Lunn <andrew@...n.ch>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Gross <agross@...nel.org>,
Andy Lutomirski <luto@...nel.org>,
Andy Shevchenko <andy@...radead.org>,
Anup Patel <anup.patel@....com>,
Ard Biesheuvel <ardb@...nel.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>,
Catalin Marinas <catalin.marinas@....com>,
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Subject: Re: [PATCH 3/9] all: replace bitmap_weigth() with
bitmap_{empty,full,eq,gt,le}
On Sat, Nov 27, 2021 at 07:56:58PM -0800, Yury Norov wrote:
> bitmap_weight() counts all set bits in the bitmap unconditionally.
> However in some cases we can traverse a part of bitmap when we
> only need to check if number of set bits is greater, less or equal
> to some number.
>
> This patch replaces bitmap_weight() with one of
> bitmap_{empty,full,eq,gt,le), as appropriate.
>
> In some places driver code has been optimized further, where it's
> trivial.
>
> Signed-off-by: Yury Norov <yury.norov@...il.com>
> ---
> arch/nds32/kernel/perf_event_cpu.c | 4 +---
> arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 ++--
> arch/x86/kvm/hyperv.c | 8 ++++----
> drivers/crypto/ccp/ccp-dev-v5.c | 5 +----
> drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 2 +-
> drivers/iio/adc/mxs-lradc-adc.c | 3 +--
> drivers/iio/dummy/iio_simple_dummy_buffer.c | 4 ++--
> drivers/iio/industrialio-buffer.c | 2 +-
> drivers/iio/industrialio-trigger.c | 2 +-
> drivers/memstick/core/ms_block.c | 4 ++--
> drivers/net/dsa/b53/b53_common.c | 2 +-
> drivers/net/ethernet/broadcom/bcmsysport.c | 6 +-----
> drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 4 ++--
> drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 2 +-
> .../ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 2 +-
> .../ethernet/marvell/octeontx2/nic/otx2_flows.c | 8 ++++----
> .../net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 2 +-
> drivers/net/ethernet/mellanox/mlx4/cmd.c | 10 +++-------
> drivers/net/ethernet/mellanox/mlx4/eq.c | 4 ++--
> drivers/net/ethernet/mellanox/mlx4/main.c | 2 +-
> .../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 2 +-
> drivers/net/ethernet/qlogic/qed/qed_dev.c | 3 +--
> drivers/net/ethernet/qlogic/qed/qed_rdma.c | 4 ++--
> drivers/net/ethernet/qlogic/qed/qed_roce.c | 2 +-
> drivers/perf/arm-cci.c | 2 +-
> drivers/perf/arm_pmu.c | 4 ++--
> drivers/perf/hisilicon/hisi_uncore_pmu.c | 2 +-
> drivers/perf/thunderx2_pmu.c | 3 +--
> drivers/perf/xgene_pmu.c | 2 +-
> drivers/pwm/pwm-pca9685.c | 2 +-
> drivers/staging/media/tegra-video/vi.c | 2 +-
> drivers/thermal/intel/intel_powerclamp.c | 10 ++++------
> fs/ocfs2/cluster/heartbeat.c | 14 +++++++-------
> 33 files changed, 57 insertions(+), 75 deletions(-)
After you get the new functions added to the kernel tree, this patch
should be broken up into one-patch-per-subsystem and submitted through
the various subsystem trees.
thanks,
greg k-h
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