usb: gadget: rndis: use rndis_params instead of configNr

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RNDIS function has a limitation on the number of allowed instances.
So far it has been RNDIS_MAX_CONFIGS, which happens to be one.
In order to eliminate this kind of arbitrary limitation we should not
preallocate a predefined (RNDIS_MAX_CONFIGS) array of struct rndis_params
instances but instead allow allocating them on demand.

This patch prepares the elimination of the said limit by converting all the
functions which accept rndis config number to accept a pointer to the
actual struct rndis_params. Consequently, rndis_register() returns
a pointer to a corresponding struct rndis_params instance. The pointer
is then always used by f_rndis.c instead of config number when it talks
to rndis.c API.

A nice side-effect of the changes is that many lines of code in rndis.c
become shorter and fit in 80 columns.

If a function prototype changes in rndis.h a style cleanup is made
at the same time, otherwise checkpatch complains that the patch
has style problems.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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This commit is contained in:

Andrzej Pietrasiewicz 2015-03-20 08:18:47 +01:00 • committed by Felipe Balbi

parent d74c23d36e

commit 83210e59ee

3 changed files with 129 additions and 151 deletions

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38

drivers/usb/gadget/function/f_rndis.c

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213

drivers/usb/gadget/function/rndis.c

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27

drivers/usb/gadget/function/rndis.h

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