linux-kernel - Re: [PATCH v2 0/3] Fix pci_iounmap() on !CONFIG_GENERIC

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Date:   Fri, 18 Sep 2020 12:45:08 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>, bhelgaas@...gle.com
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        George Cherian <george.cherian@...vell.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        linux-pci@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/3] Fix pci_iounmap() on !CONFIG_GENERIC_IOMAP

On Wed, Sep 16, 2020 at 12:06:55PM +0100, Lorenzo Pieralisi wrote:
> v2 of a previous posting.
> 
> v1->v2:
> 	- Added additional patch to remove sparc32 useless __KERNEL__
> 	  guard
> 
> v1: https://lore.kernel.org/lkml/20200915093203.16934-1-lorenzo.pieralisi@arm.com
> 
> Original cover letter
> ---
> 
> Fix the empty pci_iounmap() implementation that is causing memory leaks on
> !CONFIG_GENERIC_IOMAP configs relying on asm-generic/io.h.
> 
> A small tweak is required on sparc32 to pull in some declarations,
> hopefully nothing problematic, subject to changes as requested.
> 
> Previous tentatives:
> https://lore.kernel.org/lkml/20200905024811.74701-1-yangyingliang@huawei.com
> https://lore.kernel.org/lkml/20200824132046.3114383-1-george.cherian@marvell.com
> 
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: George Cherian <george.cherian@...vell.com>
> Cc: Yang Yingliang <yangyingliang@...wei.com>
> 
> Lorenzo Pieralisi (3):
>   sparc32: Remove useless io_32.h __KERNEL__ preprocessor guard
>   sparc32: Move ioremap/iounmap declaration before asm-generic/io.h
>     include
>   asm-generic/io.h: Fix !CONFIG_GENERIC_IOMAP pci_iounmap()
>     implementation
> 
>  arch/sparc/include/asm/io_32.h | 17 ++++++---------
>  include/asm-generic/io.h       | 39 +++++++++++++++++++++++-----------
>  2 files changed, 34 insertions(+), 22 deletions(-)

Arnd, David, Bjorn,

I have got review/test tags, is it OK if we merge this series please ?

Can we pull it in the PCI tree or you want it to go via a different
route upstream ?

Please let me know.

Thanks,
Lorenzo