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| author | Yihang Li <liyihang9@huawei.com> | 2023-07-11 11:15:00 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-07-23 15:18:25 -0400 |
| commit | 29f45ed18aa9b75b99126ea675dd29757b621073 (patch) | |
| tree | ec48c0aceb17c49de2affb6f6d5a0d1ab27139bb /drivers/scsi/hisi_sas | |
| parent | 32be33747d5dd46dde869de390e434f3deb25d2e (diff) | |
| download | lwn-29f45ed18aa9b75b99126ea675dd29757b621073.tar.gz lwn-29f45ed18aa9b75b99126ea675dd29757b621073.zip | |
scsi: hisi_sas: Delete unused lock in hisi_sas_port_notify_formed()
Currently spinlock hisi_hba->lock is used by both interrupts and threads
which requires the use of spin_lock_irqsave()/spin_unlock_irqrestore().
However, some places still use spin_lock()/spin_unlock(). Reviewing the
code revealed that it is unnecessary to use hisi_hba->lock in the function
hisi_sas_port_notify_formed() which is the only place that uses the
spinlock in interrupt context. So delete unused lock in
hisi_sas_port_notify_formed().
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1689045300-44318-4-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_main.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 8f22ece957bd..7a62590f8730 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1065,23 +1065,18 @@ EXPORT_SYMBOL_GPL(hisi_sas_phy_enable); static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) { - struct sas_ha_struct *sas_ha = sas_phy->ha; - struct hisi_hba *hisi_hba = sas_ha->lldd_ha; struct hisi_sas_phy *phy = sas_phy->lldd_phy; struct asd_sas_port *sas_port = sas_phy->port; struct hisi_sas_port *port; - unsigned long flags; if (!sas_port) return; port = to_hisi_sas_port(sas_port); - spin_lock_irqsave(&hisi_hba->lock, flags); port->port_attached = 1; port->id = phy->port_id; phy->port = port; sas_port->lldd_port = port; - spin_unlock_irqrestore(&hisi_hba->lock, flags); } static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |