linux-kernel - [PATCH for-next 2/5] Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset"

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Date:   Fri, 18 Nov 2022 16:37:11 +0800
From:   Jie Zhan <zhanjie9@...ilicon.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>
CC:     <chenxiang66@...ilicon.com>, <john.g.garry@...cle.com>,
        <damien.lemoal@...nsource.wdc.com>, <yanaijie@...wei.com>,
        <johannes.thumshirn@....com>, <duoming@....edu.cn>,
        <zhanjie9@...ilicon.com>, <liyihang9@...wei.com>,
        <yangxingui@...wei.com>, <prime.zeng@...ilicon.com>,
        <linuxarm@...wei.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH for-next 2/5] Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset"

This reverts commit f5f2a2716055ad8c0c4ff83e51d667646c6c5d8a.

This is now unnecessary to solve the SATA devices missing issue in
hisi_sas_clear_nexus_ha(). Hence, we should not ignore bcast events during
sas_eh_handle_sas_errors() in case of missing bcast events, unless a
justified need is found and a mechanism to defer (but not ignore) bcast
events in sas_eh_handle_sas_errors() is provided.

Also, in hisi_sas_clear_nexus_ha(), there is nothing further to handle in
"out: " other than return, so that part can be reverted.

Signed-off-by: Jie Zhan <zhanjie9@...ilicon.com>
Reviewed-by: John Garry <john.garry@...wei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 4527ac266bb6..62080d0fad6f 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1812,14 +1812,12 @@ static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
 	struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
 	HISI_SAS_DECLARE_RST_WORK_ON_STACK(r);
 	ASYNC_DOMAIN_EXCLUSIVE(async);
-	int i, ret;
+	int i;
 
 	queue_work(hisi_hba->wq, &r.work);
 	wait_for_completion(r.completion);
-	if (!r.done) {
-		ret = TMF_RESP_FUNC_FAILED;
-		goto out;
-	}
+	if (!r.done)
+		return TMF_RESP_FUNC_FAILED;
 
 	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
 		struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
@@ -1836,9 +1834,7 @@ static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
 	async_synchronize_full_domain(&async);
 	hisi_sas_release_tasks(hisi_hba);
 
-	ret = TMF_RESP_FUNC_COMPLETE;
-out:
-	return ret;
+	return TMF_RESP_FUNC_COMPLETE;
 }
 
 static int hisi_sas_query_task(struct sas_task *task)
@@ -1986,14 +1982,10 @@ void hisi_sas_phy_bcast(struct hisi_sas_phy *phy)
 {
 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
 	struct hisi_hba	*hisi_hba = phy->hisi_hba;
-	struct sas_ha_struct *sha = &hisi_hba->sha;
 
 	if (test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
 		return;
 
-	if (test_bit(SAS_HA_FROZEN, &sha->state))
-		return;
-
 	sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD, GFP_ATOMIC);
 }
 EXPORT_SYMBOL_GPL(hisi_sas_phy_bcast);
-- 
2.30.0