linux-kernel - Re: [PATCH] EDAC, pnd2: Fix ioremap() size in dnv_rd

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Message-ID: <20190809172533.GA31823@agluck-desk2.amr.corp.intel.com>
Date:   Fri, 9 Aug 2019 10:25:33 -0700
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Stephen Douthit <stephend@...icom-usa.com>
Cc:     Borislav Petkov <bp@...en8.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        James Morse <james.morse@....com>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] EDAC, pnd2: Fix ioremap() size in dnv_rd_reg()

On Fri, Aug 09, 2019 at 02:18:02PM +0000, Stephen Douthit wrote:
> Depending on how BIOS has marked the reserved region containing the 32KB
> MCHBAR you can get warnings like:
> 
> resource sanity check: requesting [mem 0xfed10000-0xfed1ffff], which spans more than reserved [mem 0xfed10000-0xfed17fff]
> caller dnv_rd_reg+0xc8/0x240 [pnd2_edac] mapping multiple BARs
> 
> Not all of the mmio regions used in dnv_rd_reg() are the same size.  The
> MCHBAR window is 32KB and the sideband ports are 64KB.  Pass the correct
> size to ioremap() depending on which resource we're reading from.

Applied. Thanks.

-Tony

[Boris/Mauro: I pushed to edac-for-next branch in ras tree
 git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git]