linux-kernel - Re: [PATCH 10/20] regmap: _regmap_raw_multi_reg_write: Add reg

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:	Wed, 12 Aug 2015 13:39:23 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Markus Pargmann <mpa@...gutronix.de>
Cc:	Jonathan Cameron <jic23@...nel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de
Subject: Re: [PATCH 10/20] regmap: _regmap_raw_multi_reg_write: Add
 reg_write() support

On Wed, Aug 12, 2015 at 12:12:35PM +0200, Markus Pargmann wrote:
> Define a fallback for busses which do not define a write() function.
> Instead we write one register at a time using reg_write().
> 
> Without this patch, _regmap_raw_multi_reg_write would break as it tries
> to call bus->write() without checking if it exists before.

Why are we trying to use multi write APIs in the first place if we can't
do raw I/O?

Download attachment "signature.asc" of type "application/pgp-signature" (474 bytes)