CLAMP_VAL(9) Driver Basics CLAMP_VAL(9)NAMEclamp_val - return a value clamped to a given range using val's type
SYNOPSIS
clamp_val(val, min, max);
ARGUMENTS
val
current value
min
minimum allowable value
max
maximum allowable value
DESCRIPTION
This macro does no typechecking and uses temporary variables of
whatever type the input argument 'val' is. This is useful when val is
an unsigned type and min and max are literals that will otherwise be
assigned a signed integer type.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 CLAMP_VAL(9)