Commit b5c7e7ec authored by Yury Norov's avatar Yury Norov
Browse files

all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate 



find_first{,_zero}_bit is a more effective analogue of 'next' version if
start == 0. This patch replaces 'next' with 'first' where things look
trivial.

Signed-off-by: default avatarYury Norov <yury.norov@gmail.com>
Tested-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
parent 93ba139b

arch/powerpc/platforms/pasemi/dma_lib.c

+2 −2
Original line number Diff line number Diff line
@@ -375,7 +375,7 @@ int pasemi_dma_alloc_flag(void) 
	int bit;



retry:

	bit = find_next_bit(flags_free, MAX_FLAGS, 0);

	bit = find_first_bit(flags_free, MAX_FLAGS);

	if (bit >= MAX_FLAGS)

		return -ENOSPC;

	if (!test_and_clear_bit(bit, flags_free))
@@ -440,7 +440,7 @@ int pasemi_dma_alloc_fun(void) 
	int bit;



retry:

	bit = find_next_bit(fun_free, MAX_FLAGS, 0);

	bit = find_first_bit(fun_free, MAX_FLAGS);

	if (bit >= MAX_FLAGS)

		return -ENOSPC;

	if (!test_and_clear_bit(bit, fun_free))

arch/s390/kvm/kvm-s390.c

+1 −1
Original line number Diff line number Diff line
@@ -2021,7 +2021,7 @@ static unsigned long kvm_s390_next_dirty_cmma(struct kvm_memslots *slots, 
	while ((slotidx > 0) && (ofs >= ms->npages)) {

		slotidx--;

		ms = slots->memslots + slotidx;

		ofs = find_next_bit(kvm_second_dirty_bitmap(ms), ms->npages, 0);

		ofs = find_first_bit(kvm_second_dirty_bitmap(ms), ms->npages);

	}

	return ms->base_gfn + ofs;

}

drivers/block/rnbd/rnbd-clt.c

+1 −1
Original line number Diff line number Diff line
@@ -196,7 +196,7 @@ rnbd_get_cpu_qlist(struct rnbd_clt_session *sess, int cpu) 
		return per_cpu_ptr(sess->cpu_queues, bit);

	} else if (cpu != 0) {

		/* Search from 0 to cpu */

		bit = find_next_bit(sess->cpu_queues_bm, cpu, 0);

		bit = find_first_bit(sess->cpu_queues_bm, cpu);

		if (bit < cpu)

			return per_cpu_ptr(sess->cpu_queues, bit);

	}

drivers/dma/ti/edma.c

+1 −1
Original line number Diff line number Diff line
@@ -1681,7 +1681,7 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data) 


			dev_dbg(ecc->dev, "EMR%d 0x%08x\n", j, val);

			emr = val;

			for (i = find_next_bit(&emr, 32, 0); i < 32;

			for (i = find_first_bit(&emr, 32); i < 32;

			     i = find_next_bit(&emr, 32, i + 1)) {

				int k = (j << 5) + i;

drivers/iio/adc/ad7124.c

+1 −1
Original line number Diff line number Diff line
@@ -347,7 +347,7 @@ static int ad7124_find_free_config_slot(struct ad7124_state *st) 
{

	unsigned int free_cfg_slot;



	free_cfg_slot = find_next_zero_bit(&st->cfg_slots_status, AD7124_MAX_CONFIGS, 0);

	free_cfg_slot = find_first_zero_bit(&st->cfg_slots_status, AD7124_MAX_CONFIGS);

	if (free_cfg_slot == AD7124_MAX_CONFIGS)

		return -1;