PTP_MAX_CHANNELS
queue->mask = bitmap_alloc(PTP_MAX_CHANNELS, GFP_KERNEL);
bitmap_set(queue->mask, 0, PTP_MAX_CHANNELS);
DIV_ROUND_UP(PTP_MAX_CHANNELS, BITS_PER_BYTE * sizeof(u32));
bitmap_clear(tsevq->mask, 0, PTP_MAX_CHANNELS);
if (channel >= PTP_MAX_CHANNELS)
queue->mask = bitmap_alloc(PTP_MAX_CHANNELS, GFP_KERNEL);
bitmap_set(queue->mask, 0, PTP_MAX_CHANNELS);