linux-kernel - Re: [PATCH 13/17] MTD: export few functions from nand

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Fri, 05 Feb 2010 11:30:34 +0200
From:	Maxim Levitsky <maximlevitsky@...il.com>
To:	"stanley.miao" <stanley.miao@...driver.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Alex Dubov <oakad@...oo.com>,
	Artem Bityutskiy <dedekind1@...il.com>,
	joern <joern@...fs.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 13/17] MTD: export few functions from nand_base.c

On Fri, 2010-02-05 at 10:32 +0800, stanley.miao wrote: 
> Maxim Levitsky wrote:
> > This exports:
> >
> > nand_do_read_oob
> > nand_do_write_oob
> >   
> 
> nand_do_read_oob and nand_do_write_oob can't be exported. They are internal
> functions in NAND subsystem. If you want use them, please use mtd->read_oob
> and mtd->write_oob.

I would be happy to use these, and I tried to do so.
However this leads to deadlock, because ->block_bad can (and is) called
with controller lock (nand_get_device), thus if I call ->read_oob I will
get deadlock.

Best regards,
Maxim Levitsky

--
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/