From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: John Garry <john.garry@huawei.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Hanjun Guo <hanjun.guo@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Arnd Bergmann <arnd@arndb.de>,
Mark Rutland <mark.rutland@arm.com>,
Olof Johansson <olof@lixom.net>,
Dann Frazier <dann.frazier@canonical.com>,
Rob Herring <robh@kernel.org>, Joe Perches <joe@perches.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
linux-pci@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linuxarm <linuxarm@huawei.com>,
Corey Minyard <minyard@acm.org>devicetree <d>
Subject: Re: [PATCH v13 7/9] ACPI: Translate the I/O range of non-MMIO devices before scanning
Date: Wed, 14 Feb 2018 18:16:53 +0200 [thread overview]
Message-ID: <CAHp75VfOa5pN4MKT-aQmWBwPGWsOaQupyfrN-weWwfR3vMLtuA@mail.gmail.com> (raw)
In-Reply-To: <adfa2009-476b-8c25-c661-b0eeb48a6c43@huawei.com>
On Wed, Feb 14, 2018 at 5:33 PM, John Garry <john.garry@huawei.com> wrote:
> On 14/02/2018 13:53, Andy Shevchenko wrote:
>> On Tue, Feb 13, 2018 at 7:45 PM, John Garry <john.garry@huawei.com> wrote:
>>> + sys_port = logic_pio_trans_hwaddr(&host->fwnode, res->start,
>>> len);
>>> + if (sys_port == -1UL)
>> Wouldn't it be better to compare with ULONG_MAX?
> Could do, being the same thing. Maybe people prefer -1UL as it saves having
> to figure out what ULONG_MAX is :)
-1UL looks confusing.
Another approach is to use ~0UL if that is preferable.
>>> + list_for_each_entry(rentry, &resource_list, node)
>>> + resources[count++] = *rentry->res;
>> It has similarities with acpi_create_platform_device().
>> I guess we can utilize existing code.
> For sure, this particular segment is effectively same as part of
> acpi_create_platform_device():
Not the same, acpi_create_platform_device() does a bit more than
copying the resources. If it indeed makes no hurt...
> list_for_each_entry(rentry, &resource_list, node)
> acpi_platform_fill_resource(adev, rentry->res,
> &resources[count++]);
> So is your idea to refactor this common segment into a helper function?
...I would go with helper.
>>> + char *name = &acpi_indirect_io_mfd_cell[count].name[0];
>>> + char *pnpid = &acpi_indirect_io_mfd_cell[count].pnpid[0];
>>
>>
>> Plain x is equivalent to &x[0].
> Right, but I thought for arrays that we should use address of x rather than
> x itself, no?
x is addressed by it's beginning.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2018-02-14 16:16 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-13 17:45 [PATCH v13 0/9] LPC: legacy ISA I/O support John Garry
2018-02-13 17:45 ` [PATCH v13 1/9] LIB: Introduce a generic PIO mapping method John Garry
[not found] ` <1518543933-22456-2-git-send-email-john.garry-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-02-13 23:05 ` dann frazier
2018-02-14 16:13 ` John Garry
2018-02-13 17:45 ` [PATCH v13 2/9] PCI: Remove unused __weak attribute in pci_register_io_range() John Garry
2018-02-13 17:45 ` [PATCH v13 3/9] PCI: Add fwnode handler as input param of pci_register_io_range() John Garry
2018-02-13 17:45 ` [PATCH v13 4/9] PCI: Apply the new generic I/O management on PCI IO hosts John Garry
2018-02-13 22:57 ` dann frazier
2018-02-14 15:42 ` John Garry
2018-02-14 16:05 ` dann frazier
2018-02-13 17:45 ` [PATCH v13 5/9] OF: Add missing I/O range exception for indirect-IO devices John Garry
[not found] ` <1518543933-22456-1-git-send-email-john.garry-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-02-13 17:45 ` [PATCH v13 6/9] LPC: Support the LPC host on Hip06/Hip07 with DT bindings John Garry
2018-02-13 17:45 ` [PATCH v13 7/9] ACPI: Translate the I/O range of non-MMIO devices before scanning John Garry
2018-02-14 9:21 ` Rafael J. Wysocki
2018-02-14 12:48 ` John Garry
2018-02-14 13:53 ` Andy Shevchenko
2018-02-14 15:33 ` John Garry
2018-02-14 16:16 ` Andy Shevchenko [this message]
2018-02-15 17:07 ` John Garry
[not found] ` <59e5293f-0ea5-12f4-27db-b13bbcf0918b-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-02-16 14:42 ` Andy Shevchenko
[not found] ` <CAHp75VeTQg+A9o5Ox-k_9Qx8=JPEnqg1taVjcd8Zd2rfj_TMog-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-16 14:48 ` John Garry
2018-02-14 16:16 ` Lorenzo Pieralisi
2018-02-14 16:52 ` John Garry
2018-02-15 11:19 ` John Garry
2018-02-15 11:47 ` Rafael J. Wysocki
[not found] ` <CAJZ5v0jGvo+cutmvi3WSe1JNvQ1UvZhJr1mQ76=8=1E5Gq+iRg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-15 12:36 ` Lorenzo Pieralisi
2018-02-15 12:59 ` John Garry
2018-02-15 12:22 ` Andy Shevchenko
[not found] ` <CAHp75VfFKcnUVQwPUxynzp88RXWdV8VEqtXxd0=_Q_GJKO6UpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-15 12:52 ` John Garry
[not found] ` <f7b3de31-46fb-f80e-511e-651fa815bddf-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-02-15 12:55 ` Andy Shevchenko
2018-02-13 17:45 ` [PATCH v13 8/9] LPC, ACPI: Add the HISI LPC ACPI support John Garry
2018-02-13 17:45 ` [PATCH v13 9/9] MAINTAINERS: Add maintainer for HiSilicon LPC driver John Garry
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