2020-03-26 15:09:23

by Stanley Chu

Subject: [PATCH v2 1/2] scsi: ufs: export ufshcd_link_recovery for vendor's error recovery

export ufshcd_link_recovery to allow vendors to recover failed link
in vendor's callbacks.

Signed-off-by: Stanley Chu <[email protected]>
---
drivers/scsi/ufs/ufshcd.c | 3 ++-
drivers/scsi/ufs/ufshcd.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4b30fb2f7da7..92967df2c877 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3744,7 +3744,7 @@ static int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
return ret;
}

-static int ufshcd_link_recovery(struct ufs_hba *hba)
+int ufshcd_link_recovery(struct ufs_hba *hba)
{
int ret;
unsigned long flags;
@@ -3771,6 +3771,7 @@ static int ufshcd_link_recovery(struct ufs_hba *hba)

return ret;
}
+EXPORT_SYMBOL_GPL(ufshcd_link_recovery);

static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
{
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index d45a04444191..836d90a5c0e6 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -785,6 +785,7 @@ int ufshcd_alloc_host(struct device *, struct ufs_hba **);
void ufshcd_dealloc_host(struct ufs_hba *);
int ufshcd_hba_enable(struct ufs_hba *hba);
int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
+int ufshcd_link_recovery(struct ufs_hba *hba);
int ufshcd_make_hba_operational(struct ufs_hba *hba);
void ufshcd_remove(struct ufs_hba *);
int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
--
2.18.0

2020-03-27 09:25:33

by Avri Altman

Subject: RE: [PATCH v2 1/2] scsi: ufs: export ufshcd_link_recovery for vendor's error recovery

> export ufshcd_link_recovery to allow vendors to recover failed link
> in vendor's callbacks.
>
> Signed-off-by: Stanley Chu <[email protected]>
Reviewed-by: Avri Altman <[email protected]>