[PATCH v2 16/35] scsi: mpi3mr: switch to using atomic find_and_set_bit()

Yury Norov
2023-12-03T19:34:36Z

mpi3mr_dev_rmhs_send_tm() and mpi3mr_send_event_ack() opencode
find_and_set_bit(). Switch them to using dedicated functions.

CC: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
drivers/scsi/mpi3mr/mpi3mr_os.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 040031eb0c12..11139a2008fd 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -2276,13 +2276,9 @@ static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle,
if (drv_cmd)
goto issue_cmd;
do {
- cmd_idx = find_first_zero_bit(mrioc->devrem_bitmap,
- MPI3MR_NUM_DEVRMCMD);
- if (cmd_idx < MPI3MR_NUM_DEVRMCMD) {
- if (!test_and_set_bit(cmd_idx, mrioc->devrem_bitmap))
- break;
- cmd_idx = MPI3MR_NUM_DEVRMCMD;
- }
+ cmd_idx = find_and_set_bit(mrioc->devrem_bitmap, MPI3MR_NUM_DEVRMCMD);
+ if (cmd_idx < MPI3MR_NUM_DEVRMCMD)
+ break;
} while (retrycount--);

if (cmd_idx >= MPI3MR_NUM_DEVRMCMD) {
@@ -2417,14 +2413,9 @@ static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event,
"sending event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n",
event, event_ctx);
do {
- cmd_idx = find_first_zero_bit(mrioc->evtack_cmds_bitmap,
- MPI3MR_NUM_EVTACKCMD);
- if (cmd_idx < MPI3MR_NUM_EVTACKCMD) {
- if (!test_and_set_bit(cmd_idx,
- mrioc->evtack_cmds_bitmap))
- break;
- cmd_idx = MPI3MR_NUM_EVTACKCMD;
- }
+ cmd_idx = find_and_set_bit(mrioc->evtack_cmds_bitmap, MPI3MR_NUM_EVTACKCMD);
+ if (cmd_idx < MPI3MR_NUM_EVTACKCMD)
+ break;
} while (retrycount--);

if (cmd_idx >= MPI3MR_NUM_EVTACKCMD) {
--
2.40.1