From: Michal Suchanek <hramrach@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: "Heiner Kallweit" <hkallweit1@gmail.com>,
"David Woodhouse" <dwmw2@infradead.org>,
"Brian Norris" <computersforpeace@gmail.com>,
"Han Xu" <han.xu@freescale.com>,
"Boris Brezillon" <boris.brezillon@free-electrons.com>,
"Javier Martinez Canillas" <javier@osg.samsung.com>,
"Stephen Warren" <swarren@nvidia.com>,
"Andrew F. Davis" <afd@ti.com>, "Marek Vasut" <marex@denx.de>,
"Rafał Miłecki" <zajec5@gmail.com>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Gabor Juhos" <juhosg@openwrt.org>,
"Bean Huo 霍斌斌" <beanhuo@micron.com>,
"Furquan Shaikh" <furquan@google.com>,
"MTD Maling List" <linux-mtd@lists.infradead.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
linux-spi <linux-spi@vger.kernel.org>
Subject: Re: [PATCH v5 08/10] spi: expose master transfer size limitation.
Date: Wed, 2 Dec 2015 10:38:56 +0100 [thread overview]
Message-ID: <CAOMqctS6KaXuX0nS_pO7O80466j-3G8g_MAySdwRcCK10jozFw@mail.gmail.com> (raw)
In-Reply-To: <20151201231233.GA1929@sirena.org.uk>
On 2 December 2015 at 00:12, Mark Brown <broonie@kernel.org> wrote:
> On Tue, Dec 01, 2015 at 04:51:06PM -0000, Michal Suchanek wrote:
>
>> +static inline size_t
>> +spi_max_transfer_size(struct spi_device *spi)
>> +{
>> + struct spi_master *master = spi->master;
>> + if (!master->max_transfer_size)
>> + return 0;
>> + return master->max_transfer_size(spi);
>> +}
>
> Can we change this to return SIZE_MAX instead (ie, the maximum value for
> a size_t)? That way callers don't need to worry if there is a limit, if
> they want to handle it they can just unconditionally assume that a limit
> will be provided.
Yes, that sounds reasonable.
Thanks
Michal
WARNING: multiple messages have this Message-ID (diff)
From: Michal Suchanek <hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: "Heiner Kallweit"
<hkallweit1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"David Woodhouse" <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
"Brian Norris"
<computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Han Xu" <han.xu-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
"Boris Brezillon"
<boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
"Javier Martinez Canillas"
<javier-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>,
"Stephen Warren"
<swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"Andrew F. Davis" <afd-l0cyMroinI0@public.gmane.org>,
"Marek Vasut" <marex-ynQEQJNshbs@public.gmane.org>,
"Rafał Miłecki" <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Mika Westerberg"
<mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
"Gabor Juhos" <juhosg-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>,
"Bean Huo 霍斌斌" <beanhuo-AL4WhLSQfzjQT0dZR+AlfA@public.gmane.org>,
"Furquan Shaikh"
<furquan-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
"MTD Maling List"
<linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"Linux Kernel Mailing List"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-spi <linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH v5 08/10] spi: expose master transfer size limitation.
Date: Wed, 2 Dec 2015 10:38:56 +0100 [thread overview]
Message-ID: <CAOMqctS6KaXuX0nS_pO7O80466j-3G8g_MAySdwRcCK10jozFw@mail.gmail.com> (raw)
In-Reply-To: <20151201231233.GA1929-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
On 2 December 2015 at 00:12, Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
> On Tue, Dec 01, 2015 at 04:51:06PM -0000, Michal Suchanek wrote:
>
>> +static inline size_t
>> +spi_max_transfer_size(struct spi_device *spi)
>> +{
>> + struct spi_master *master = spi->master;
>> + if (!master->max_transfer_size)
>> + return 0;
>> + return master->max_transfer_size(spi);
>> +}
>
> Can we change this to return SIZE_MAX instead (ie, the maximum value for
> a size_t)? That way callers don't need to worry if there is a limit, if
> they want to handle it they can just unconditionally assume that a limit
> will be provided.
Yes, that sounds reasonable.
Thanks
Michal
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2015-12-02 9:39 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 16:51 [PATCH v5 00/10] add error checking to spi-nor read and write Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 01/10] mtd: spi-nor: change return value of read/write Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 02/10] mtd: m25p80: return amount of data transferred or error in read/write Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 04/10] mtd: spi-nor: check return value from read/write Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 03/10] mtd: fsl-quadspi: return amount of data read/written or error Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 07/10] mtd: spi-nor: add read loop Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 06/10] mtd: spi-nor: simplify write loop Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 05/10] mtd: spi-nor: stop passing around retlen Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 08/10] spi: expose master transfer size limitation Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 19:58 ` Mark Brown
2015-12-01 19:58 ` Mark Brown
2015-12-01 21:07 ` Heiner Kallweit
2015-12-01 21:07 ` Heiner Kallweit
2015-12-01 21:31 ` Mark Brown
2015-12-01 21:31 ` Mark Brown
2015-12-02 9:55 ` Michal Suchanek
2015-12-02 9:55 ` Michal Suchanek
2015-12-01 23:12 ` Mark Brown
2015-12-02 9:38 ` Michal Suchanek [this message]
2015-12-02 9:38 ` Michal Suchanek
2015-12-04 14:30 ` Martin Sperl
2015-12-04 14:30 ` Martin Sperl
2015-12-04 16:45 ` Michal Suchanek
2015-12-04 16:45 ` Michal Suchanek
2015-12-07 20:18 ` Mark Brown
2015-12-07 20:18 ` Mark Brown
2015-12-01 16:51 ` [PATCH v5 10/10] spi: m25p80: read in spi_max_transfer_size chunks Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
2015-12-01 16:51 ` [PATCH v5 09/10] spi: fsl-espi: expose maximum transfer size limit Michal Suchanek
2015-12-01 16:51 ` Michal Suchanek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAOMqctS6KaXuX0nS_pO7O80466j-3G8g_MAySdwRcCK10jozFw@mail.gmail.com \
--to=hramrach@gmail.com \
--cc=afd@ti.com \
--cc=beanhuo@micron.com \
--cc=boris.brezillon@free-electrons.com \
--cc=broonie@kernel.org \
--cc=computersforpeace@gmail.com \
--cc=dwmw2@infradead.org \
--cc=furquan@google.com \
--cc=han.xu@freescale.com \
--cc=hkallweit1@gmail.com \
--cc=javier@osg.samsung.com \
--cc=juhosg@openwrt.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-spi@vger.kernel.org \
--cc=marex@denx.de \
--cc=mika.westerberg@linux.intel.com \
--cc=swarren@nvidia.com \
--cc=zajec5@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.