Lines Matching defs:diff

98  * "diff" is passed in to the macro as "delta - delta_l" and is expected to be
123  * We also have to be careful to constrain the value of diff such that it won't
124  * overflow whilst performing the calculation. The middle term i.e. (160 * diff)
125  * / hz is the limiting factor in the calculation. We must constrain diff to be
127  * i.e. diff < INT_MAX / 160
132 #define HTCP_CALC_ALPHA(diff) \
135 	((160 * (diff)) / hz) + \
136 	(((diff) / hz) * (((diff) << HTCP_ALPHA_INC_SHIFT) / (4 * hz))) \
168  * The maximum number of ticks the value of diff can reach in
409 	int alpha, diff, now;
428 	diff = now - htcp_data->t_last_cong - HTCP_DELTA_L;
430 	/* Cap alpha if the value of diff would overflow HTCP_CALC_ALPHA(). */
431 	if (diff < htcp_max_diff) {
436 		if (diff > 0) {
437 			alpha = HTCP_CALC_ALPHA(diff);