linux-kernel - Re: [PATCH v3] mtd: ubi: Extend UBI layer debug/messaging capabilities

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Date:	Mon, 13 Oct 2014 18:59:13 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Tanya Brokhman <tlinder@...eaurora.org>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	linux-arm-msm@...r.kernel.org,
	open list <linux-kernel@...r.kernel.org>,
	linux-mtd@...ts.infradead.org, Richard Weinberger <richard@....at>,
	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH v3] mtd: ubi: Extend UBI layer debug/messaging
 capabilities

On Mon, 2014-10-13 at 18:37 +0300, Artem Bityutskiy wrote:
> On Mon, 2014-10-06 at 14:01 +0300, Tanya Brokhman wrote:
> > If there is more then one UBI device mounted, there is no way to
> > distinguish between messages from different UBI devices.
> > Add device number to all ubi layer message types.
> 
> Looks good to me, pushed to the master branch of the linux-ubifs.git
> tree. Later, when the merge window is closed, I'll merge this patch to
> the linux-next branch too.

Tanya,

sorry, I was not careful enough, I merged it and tested against the
Linuses head, it is fine.

But it does not apply the the linux-ubifs.git tree. There are conflicts.

But more importantly, you did not get the 'block.c' right. There we use
the same printing macros, but we do not have 'struct ubi_info' there at
all.

Please, enable the R/O block layer feature and try to compile, it'll
fail.

The block driver is in 'drivers/mtd/ubi', but it is kind of a separate
driver - it does not access the internal UBI data structures.

I guess the solution would be to just use pr_* functions there instead.

CCing Ezequiel.

Please, submit a patch against the 'linux-next' branch of this tree:

git://git.infradead.org/linux-ubifs.git

Artem.

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