[PATCH v2] ufs: core: Combine ufshcd_mq_poll_cqe functions

From: Stanley Chu
Date: Thu Jun 01 2023 - 18:51:08 EST


Currently, ufshcd_mcq_poll_cqe_nolock() is only called by
ufshcd_mcq_poll_cqe_lock() with the addition of a spinlock wrapper
for ufshcd_mcq_poll_cqe_nolock(). Combining these two functions
into one would result in cleaner code.

Reviewed-by: Bao D. Nguyen <quic_nguyenb@xxxxxxxxxxx>
Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
---
drivers/ufs/core/ufs-mcq.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c
index 920eb954f594..785fc9762cad 100644
--- a/drivers/ufs/core/ufs-mcq.c
+++ b/drivers/ufs/core/ufs-mcq.c
@@ -307,11 +307,13 @@ void ufshcd_mcq_compl_all_cqes_lock(struct ufs_hba *hba,
spin_unlock_irqrestore(&hwq->cq_lock, flags);
}

-static unsigned long ufshcd_mcq_poll_cqe_nolock(struct ufs_hba *hba,
- struct ufs_hw_queue *hwq)
+unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba,
+ struct ufs_hw_queue *hwq)
{
unsigned long completed_reqs = 0;
+ unsigned long flags;

+ spin_lock_irqsave(&hwq->cq_lock, flags);
ufshcd_mcq_update_cq_tail_slot(hwq);
while (!ufshcd_mcq_is_cq_empty(hwq)) {
ufshcd_mcq_process_cqe(hba, hwq);
@@ -321,17 +323,6 @@ static unsigned long ufshcd_mcq_poll_cqe_nolock(struct ufs_hba *hba,

if (completed_reqs)
ufshcd_mcq_update_cq_head(hwq);
-
- return completed_reqs;
-}
-
-unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba,
- struct ufs_hw_queue *hwq)
-{
- unsigned long completed_reqs, flags;
-
- spin_lock_irqsave(&hwq->cq_lock, flags);
- completed_reqs = ufshcd_mcq_poll_cqe_nolock(hba, hwq);
spin_unlock_irqrestore(&hwq->cq_lock, flags);

return completed_reqs;
--
2.18.0