Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   =?utf-8?Q?Krzysztof_Ha=C5=82asa?= <khalasa@piap.pl>
To:     Rob Herring <robh@kernel.org>
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        PCI <linux-pci@vger.kernel.org>,
        Artem Lapkin <email2tema@gmail.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Huacai Chen <chenhuacai@gmail.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Krzysztof =?utf-8?Q?Wilczy=C5=84s?= =?utf-8?Q?ki?= 
        <kw@linux.com>, Richard Zhu <hongxing.zhu@nxp.com>,
        Lucas Stach <l.stach@pengutronix.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] PCIe: limit Max Read Request Size on i.MX to 512 bytes
References: <m37dgp20cr.fsf@t19.piap.pl>
        <CAL_JsqL1bPwbPB-3y6s0d6XoNkjrSzpbx=p7BcTq8UyTbh8pvw@mail.gmail.com>
Sender: khalasa@piap.pl
Date:   Fri, 13 Aug 2021 20:18:44 +0200
In-Reply-To: <CAL_JsqL1bPwbPB-3y6s0d6XoNkjrSzpbx=p7BcTq8UyTbh8pvw@mail.gmail.com>
        (Rob Herring's message of "Fri, 13 Aug 2021 08:45:43 -0500")
Message-ID: <m3v949ky2j.fsf@t19.piap.pl>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

Rob,

Rob Herring <robh@kernel.org> writes:

>> +++ b/drivers/pci/Kconfig
>> @@ -34,6 +34,9 @@ config PCI_DOMAINS_GENERIC
>>  config PCI_SYSCALL
>>         bool
>>
>> +config NEED_PCIE_MAX_MRRS
>
> We don't need a config option for this. It's not much code and it will
> effectively always be enabled with multi-platform kernels.

But... non-ARM kernels?
Then perhaps #if CONFIG_ARM?
--=20
Krzysztof "Chris" Ha=C5=82asa

Sie=C4=87 Badawcza =C5=81ukasiewicz
Przemys=C5=82owy Instytut Automatyki i Pomiar=C3=B3w PIAP
Al. Jerozolimskie 202, 02-486 Warszawa