From mboxrd@z Thu Jan  1 00:00:00 1970
From: Crestez Dan Leonard <leonard.crestez-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v7 00/24] i2c mux cleanup and locking update
Date: Thu, 21 Apr 2016 15:33:26 +0300
Message-ID: <5718C896.9070302@intel.com>
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To: Peter Rosin <peda-koto5C5qi+TLoDKTGw+V6w@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>, Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>, Peter Korsgaard <peter.korsgaard-ob4gmnvZ1/cAvxtiuMwx3w@public.gmane.org>, Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>, Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Hartmut Knaack <knaack.h-Mmb7MZpHnFY@public.gmane.org>, Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>, Peter Meerwald <pmeerw-jW+XmwGofnusTnJN9+BGXg@public.gmane.org>, Antti Palosaari <crope-X3B1VOXEql0@public.gmane.org>, Mauro Carvalho Chehab <mchehab-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Frank Rowand <frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Grant Likely <grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>, Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>, Kalle Valo <kvalo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, Jiri Slaby <jslaby-IBi9RG/b67k@public.gmane.org>, Daniel Baluta <daniel.baluta-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Lucas De Marchi <lucas.demarchi-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Adriana Reus <adriana.reus-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Matt Ranostay <matt.ranostay-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Krzysztof Kozlowski <k.k>
List-Id: linux-i2c@vger.kernel.org

On 04/20/2016 06:17 PM, Peter Rosin wrote:
> v7 compared to v6:
> - Removed i2c_mux_reserve_adapters, and all realloc attempts in
>   i2c_mux_add_adapter. Supply a maximum number of adapters in i2c_mux_alloc
>   instead.
> - Removed i2c_mux_one_adapter since it is was hard to use correctly, which
>   was evident from the crash in the mpu6050 driver (on a mpu9150 chip) reported
>   by Crestez Dan Leonard. Also, it didn't make things all that much simpler
>   anyway (even if used correctly).
> - Rename i2c_mux_core:adapters into i2c_mux_core:num_adapters.
> - Some grammar and spelling fixes.

I tested this new version on mpu9150 and there are no more obvious
deadlocks or crashes. The magnetometer and accel/gyro can be used at the
same time without issues.