greybus: esX: use one byte to encode cport ids in header

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We now limit the maximum value for both host and module CPort ids,
and we know they can always be represented in a single byte.

Make use of this by using only one of the two pad bytes for encoding
the CPort id in a message header.

(Note that we have never used a CPort higher than 255.  Encoding
such a small CPort id in little endian 2-byte format has the same
result as what is done here.)

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Alex Elder 2015-06-13 11:02:11 -05:00 • committed by Greg Kroah-Hartman

parent 88d18a975d

commit 4bc1389de9

2 changed files with 12 additions and 6 deletions

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9

drivers/staging/greybus/es1.c

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9

drivers/staging/greybus/es2.c

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