linux-kernel - Re: [PATCH] parport_pc: Avoid FIFO port location truncation

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Message-ID: <CADVatmMBMgk1Uga46FWs4CysiCQ2JQhyfSyp4OK1VDnLdAXSCg@mail.gmail.com>
Date:   Mon, 3 Oct 2022 12:19:14 +0100
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Bjorn Helgaas <helgaas@...nel.org>, linux-kernel@...r.kernel.org,
        "Maciej W. Rozycki" <macro@...am.me.uk>
Subject: Re: [PATCH] parport_pc: Avoid FIFO port location truncation

On Fri, Sep 23, 2022 at 7:52 PM Maciej W. Rozycki <macro@...am.me.uk> wrote:
>
> Match the data type of a temporary holding a reference to the FIFO port
> with the type of the original reference coming from `struct parport',
> avoiding data truncation with LP64 ports such as SPARC64 that refer to
> PCI port I/O locations via their corresponding MMIO addresses and will
> therefore have non-zero bits in the high 32-bit part of the reference.
> And in any case it is cleaner to have the data types matching here.
>
> Signed-off-by: Maciej W. Rozycki <macro@...am.me.uk>
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Link: https://lore.kernel.org/linux-pci/20220419033752.GA1101844@bhelgaas/

Thanks for the patch Maciej.

Acked-by: Sudip Mukherjee <sudipm.mukherjee@...il.com>

Greg, can you please add it to your tree. I know I am late and the
merge window is now open.


-- 
Regards
Sudip