From: Leon Romanovsky <leon@kernel•org>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse•de>
Cc: andrew.murray@arm•com, maz@kernel•org,
linux-kernel@vger•kernel.org,
"Michael Turquette" <mturquette@baylibre•com>,
"Stephen Boyd" <sboyd@kernel•org>,
"Emilio López" <emilio@elopez•com.ar>,
"Maxime Ripard" <mripard@kernel•org>,
"Chen-Yu Tsai" <wens@csie•org>,
"Mike Marciniszyn" <mike.marciniszyn@intel•com>,
"Dennis Dalessandro" <dennis.dalessandro@intel•com>,
"Yishai Hadas" <yishaih@mellanox•com>,
"Moni Shoua" <monis@mellanox•com>,
"David Woodhouse" <dwmw2@infradead•org>,
"Lu Baolu" <baolu.lu@linux•intel.com>,
"Joerg Roedel" <joro@8bytes•org>,
"Tom Lendacky" <thomas.lendacky@amd•com>,
"Mirko Lindner" <mlindner@marvell•com>,
"Stephen Hemminger" <stephen@networkplumber•org>,
"Jiri Pirko" <jiri@resnulli•us>,
"Solarflare linux maintainers" <linux-net-drivers@solarflare•com>,
"Edward Cree" <ecree@solarflare•com>,
"Martin Habets" <mhabets@solarflare•com>,
"Bjorn Helgaas" <bhelgaas@google•com>,
"Eric Biederman" <ebiederm@xmission•com>,
"Thomas Graf" <tgraf@suug•ch>,
"Herbert Xu" <herbert@gondor•apana.org.au>,
james.quinlan@broadcom•com, mbrugger@suse•com,
f.fainelli@gmail•com, phil@raspberrypi•org, wahrenst@gmx•net,
jeremy.linton@arm•com, linux-pci@vger•kernel.org,
linux-rpi-kernel@lists•infradead.org,
"Robin Murphy" <robin.murphy@arm•con>,
"Doug Ledford" <dledford@redhat•com>,
"Jason Gunthorpe" <jgg@ziepe•ca>,
"David S. Miller" <davem@davemloft•net>,
"Trond Myklebust" <trond.myklebust@hammerspace•com>,
"Anna Schumaker" <anna.schumaker@netapp•com>,
"J. Bruce Fields" <bfields@fieldses•org>,
"Chuck Lever" <chuck.lever@oracle•com>,
linux-clk@vger•kernel.org, linux-arm-kernel@lists•infradead.org,
linux-rdma@vger•kernel.org, iommu@lists•linux-foundation.org,
netdev@vger•kernel.org, kexec@lists•infradead.org,
linux-nfs@vger•kernel.org
Subject: Re: [PATCH v4 7/8] linux/log2.h: Fix 64bit calculations in roundup/down_pow_two()
Date: Wed, 4 Dec 2019 16:17:25 +0200 [thread overview]
Message-ID: <20191204141725.GA4939@unreal> (raw)
In-Reply-To: <20191203114743.1294-8-nsaenzjulienne@suse.de>
On Tue, Dec 03, 2019 at 12:47:40PM +0100, Nicolas Saenz Julienne wrote:
> Some users need to make sure their rounding function accepts and returns
> 64bit long variables regardless of the architecture. Sadly
> roundup/rounddown_pow_two() takes and returns unsigned longs. It turns
> out ilog2() already handles 32/64bit calculations properly, and being
> the building block to the round functions we can rework them as a
> wrapper around it.
>
> Suggested-by: Robin Murphy <robin.murphy@arm•con>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse•de>
> ---
> drivers/clk/clk-divider.c | 8 ++--
> drivers/clk/sunxi/clk-sunxi.c | 2 +-
> drivers/infiniband/hw/hfi1/chip.c | 4 +-
> drivers/infiniband/hw/hfi1/init.c | 4 +-
> drivers/infiniband/hw/mlx4/srq.c | 2 +-
> drivers/infiniband/hw/mthca/mthca_srq.c | 2 +-
> drivers/infiniband/sw/rxe/rxe_qp.c | 4 +-
Thanks, for infiniband.
Reviewed-by: Leon Romanovsky <leonro@mellanox•com>
next prev parent reply other threads:[~2019-12-05 8:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 11:47 [PATCH v4 0/8] Raspberry Pi 4 PCIe support Nicolas Saenz Julienne
2019-12-03 11:47 ` [PATCH v4 7/8] linux/log2.h: Fix 64bit calculations in roundup/down_pow_two() Nicolas Saenz Julienne
2019-12-03 16:39 ` Chuck Lever
2019-12-04 10:56 ` Martin Habets
2019-12-04 14:17 ` Leon Romanovsky [this message]
2019-12-05 0:39 ` Lu Baolu
2019-12-05 17:48 ` Robin Murphy
2019-12-12 12:31 ` Nicolas Saenz Julienne
2019-12-05 22:30 ` Bjorn Helgaas
2019-12-12 13:16 ` Nicolas Saenz Julienne
2019-12-03 11:47 ` [PATCH v4 8/8] linux/log2.h: Use roundup/dow_pow_two() on 64bit calculations Nicolas Saenz Julienne
2019-12-03 15:53 ` Rob Herring
2019-12-03 16:06 ` Nicolas Saenz Julienne
2019-12-05 20:38 ` Bjorn Helgaas
2019-12-12 13:21 ` Nicolas Saenz Julienne
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