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scsi: Revert "scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()" 

This reverts commit 11ff0c98fc.

Draining or flushing events in hisi_sas_rescan_topology() can hang the
driver, typically with phy up or phy down events being processed,
i.e. sas_porte_bytes_dmaed() or sas_phye_loss_of_signal().

Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com>
Link: https://lore.kernel.org/r/20221118083714.4034612-2-zhanjie9@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jie Zhan 2022-11-18 16:37:10 +08:00 committed by Martin K. Petersen
parent 96a2dfa1df
commit 7e613be7c6
1 changed files with 0 additions and 7 deletions
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7
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -1323,7 +1323,6 @@ static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state)
{
struct sas_ha_struct *sas_ha = &hisi_hba->sha;
struct asd_sas_port *_sas_port = NULL;
int phy_no;
@ -1352,12 +1351,6 @@ static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state)
hisi_sas_phy_down(hisi_hba, phy_no, 0, GFP_KERNEL);
}
}
/*
* Ensure any bcast events are processed prior to calling async nexus
* reset calls from hisi_sas_clear_nexus_ha() ->
* hisi_sas_async_I_T_nexus_reset()
*/
sas_drain_work(sas_ha);
}
static void hisi_sas_reset_init_all_devices(struct hisi_hba *hisi_hba)