linux-kernel - Re: [PATCH -fixes] RISC-V: ACPI: Fix acpi_os

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Date:   Sun, 23 Jul 2023 22:40:27 +0530
From:   Sunil V L <sunilvl@...tanamicro.com>
To:     Conor Dooley <conor@...nel.org>
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH -fixes] RISC-V: ACPI: Fix acpi_os_ioremap to return iomem
 address

On Sun, Jul 23, 2023 at 05:49:22PM +0100, Conor Dooley wrote:
> Hey Sunil,
> 
> On Sun, Jul 23, 2023 at 08:34:34PM +0530, Sunil V L wrote:
> > Fix the acpi_os_ioremap() to return iomem address and
> > use memory attributes from EFI memory map while remapping.
> > 
> > Reported-by: kernel test robot <lkp@...el.com>
> > Closes: https://lore.kernel.org/oe-kbuild-all/202307230357.egcTAefj-lkp@intel.com/
> > Fixes: a91a9ffbd3a5 ("RISC-V: Add support to build the ACPI core")
> > Signed-off-by: Sunil V L <sunilvl@...tanamicro.com>
> 
> Huh, there's quite a lot more going on here than $subject would
> suggest... This really seems like it should be a pair of commits, with
> a trivial one fixing the lkp reported sparse issue & a second one, with
> a more detailed commit message, implementing the memory attributes
> stuff. Doing it as an "afterthought" as part of the LKP fix does not seem
> at all right to me.
> 
Thanks!, Conor. Yeah, I agree. I had the patch ready to enhance this
function and when I saw today bot finding the issue, I just updated to
make it fix patch. Let me split to two patches.

> When you split it, I figure you should CC Ard and Alex Ghiti on the
> patch adding the EFI attribute stuff.
> 
Sure.

Thanks,
Sunil