account_sbals is called by get_inbound_buffer_frontier and get_outbound_buffer_frontier with 'count' value > 0 so we can safely convert shift loop to ilog2.
Cc: Sebastian Ott <[email protected]> Cc: Joe Perches <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Fabian Frederick <[email protected]> --- drivers/s390/cio/qdio_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 9fda160..2eee7f1 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -413,15 +413,14 @@ static inline void qdio_stop_polling(struct qdio_q *q) static inline void account_sbals(struct qdio_q *q, unsigned int count) { - int pos = 0; + int pos; q->q_stats.nr_sbal_total += count; if (count == QDIO_MAX_BUFFERS_MASK) { q->q_stats.nr_sbals[7]++; return; } - while (count >>= 1) - pos++; + pos = ilog2(count); q->q_stats.nr_sbals[pos]++; } -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
