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greybus: firmware: add comment to show size calculations

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The firmware file name's maximum length is set to 56 right now, but it
isn't very much readable how we got to that value (unless someone reads
that line).

Update the comment to show calculations.

Reported-by: Alex Elder <alex.elder@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2016-08-11 13:27:25 -07:00 committed by Greg Kroah-Hartman
parent 0675363ac7
commit ac96a609dc
1 changed files with 4 additions and 1 deletions
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5
drivers/staging/greybus/firmware.h
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@ -14,7 +14,10 @@
#define FW_NAME_PREFIX "gmp_"
/* Length of the string in format: "FW_NAME_PREFIX""%08x_%08x_%08x_%08x_%s.tftf" */
/*
* Length of the string in format: "FW_NAME_PREFIX""%08x_%08x_%08x_%08x_%s.tftf"
* (3 + 1 + 4 * (8 + 1) + 10 + 1 + 4 + 1)
*/
#define FW_NAME_SIZE 56
/* Firmware Management Protocol specific functions */