linux-kernel - Re: [PATCH V4] mmc: block: Add new ioctl to send multi commands

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 for Android: free password hash cracker in your pocket

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

Message-ID: <CAPDyKFoQRKKvvdscjiGvH6XnD=QJ64K73VVYKMrxJj5jmONVmA@mail.gmail.com>
Date:	Thu, 24 Sep 2015 00:26:24 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Grant Grundler <grundler@...gle.com>
Cc:	Jon Hunter <jonathanh@...dia.com>, Arnd Bergmann <arnd@...db.de>,
	Olof Johansson <olofj@...omium.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Seshagiri Holi <sholi@...dia.com>
Subject: Re: [PATCH V4] mmc: block: Add new ioctl to send multi commands

On 24 September 2015 at 00:06, Grant Grundler <grundler@...gle.com> wrote:
> On Wed, Sep 23, 2015 at 2:42 PM, Ulf Hansson <ulf.hansson@...aro.org> wrote:
>> On 22 September 2015 at 11:27, Jon Hunter <jonathanh@...dia.com> wrote:
>>> Certain eMMC devices allow vendor specific device information to be read
>>> via a sequence of vendor commands. These vendor commands must be issued
>>> in sequence and an atomic fashion. One way to support this would be to
>>> add an ioctl function for sending a sequence of commands to the device
>>> atomically as proposed here. These multi commands are simple array of
>>> the existing mmc_ioc_cmd structure.
>>>
>>> The structure passed via the ioctl uses a __u64 type to specify the number
>>> of commands (so that the structure is aligned on a 64-bit boundary) and a
>>> zero length array as a header for list of commands to be issued. The
>>> maximum number of commands that can be sent is determined by
>>> MMC_IOC_MAX_CMDS (which defaults to 255 and should be more than
>>> sufficient).
>>>
>>> This based upon work by Seshagiri Holi <sholi@...dia.com>.
>>>
>>> Signed-off-by: Seshagiri Holi <sholi@...dia.com>
>>> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
>>
>> Thanks, applied for next!
>
> Ulf,
> is the git repo visible publicly?

git://git.linaro.org/people/ulf.hansson/mmc.git

>
> Your linaro.org mmc.git seems to be stale and Chris Ball's tree on
> kernel.org is the only other mention of mmc I'm finding.

Chris' tree hasn't been used for a long time.

>
> cheers
> grant

Kind regards
Uffe
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/