linux-kernel - Re: [PATCH v2 08/15] PCI: endpoint: Fix pci_epf_alloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ebadc615-f633-e84e-041a-99b7936a123b@ti.com>
Date:   Wed, 13 Feb 2019 19:17:14 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Alan Douglas <adouglas@...ence.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        <linux-omap@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-rockchip@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 08/15] PCI: endpoint: Fix pci_epf_alloc_space to set
 correct MEM TYPE flags

Hi Lorenzo,

On 11/02/19 11:07 PM, Lorenzo Pieralisi wrote:
> On Mon, Jan 14, 2019 at 04:45:06PM +0530, Kishon Vijay Abraham I wrote:
>> pci_epf_alloc_space() sets the MEM TYPE flags to indicate a 32-bit
>> Base Address Register irrespective of the size. Fix it here to indicate
>> 64-bit BAR if the size is > 2GB.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>> ---
>>  drivers/pci/endpoint/pci-epf-core.c | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> This looks like a fix and should me marked as such. Does it work
> as as standalone patch if it gets backported ?

Yeah, it should work. But the current users doesn't allocate > 2GB and some
EPC drivers configure their registers based on size. So nothing is broken
without this patch as such.

Thanks
Kishon