diff mbox series

[v3,4/9] ufs: core: Call ufshcd_add_scsi_host() later

Message ID 20240828174435.2469498-5-bvanassche@acm.org (mailing list archive)
State Superseded
Headers show
Series Simplify the UFS driver initialization code | expand

Commit Message

Bart Van Assche Aug. 28, 2024, 5:43 p.m. UTC 
Call ufshcd_add_scsi_host() after host controller initialization has
completed. This is possible because no code between the old and new
ufshcd_add_scsi_host() call site depends on the scsi_add_host() call.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ufs/core/ufshcd.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

Comments

Bean Huo Sept. 1, 2024, 1:37 p.m. UTC | #1 
On Wed, 2024-08-28 at 10:43 -0700, Bart Van Assche wrote:
> Call ufshcd_add_scsi_host() after host controller initialization has
> completed. This is possible because no code between the old and new
> ufshcd_add_scsi_host() call site depends on the scsi_add_host() call.
> 
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>

I don't understand why the first 3 patches can't be combined into this
one for easier review.


Reviewed-by: Bean Huo <beanhuo@micron.com>
Bart Van Assche Sept. 3, 2024, 8:16 p.m. UTC | #2 
On 9/1/24 6:37 AM, Bean Huo wrote:
> I don't understand why the first 3 patches can't be combined into this
> one for easier review.
Combining patches is easy but I'd like to keep the first four patches
separate. I'm following this guidance from
Documentation/process/submitting-patches.rst: "Solve only one problem
per patch." I don't think that it is possible to follow this rule if I
combine any of the first four patches?

Thanks,

Bart.
diff mbox series

Patch

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 1b69b370991d..20e00ec5fda8 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10576,10 +10576,6 @@  int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		hba->is_irq_enabled = true;
 	}
 
-	err = ufshcd_add_scsi_host(hba);
-	if (err)
-		goto out_disable;
-
 	/* Reset the attached device */
 	ufshcd_device_reset(hba);
 
@@ -10591,7 +10587,7 @@  int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		dev_err(hba->dev, "Host controller enable failed\n");
 		ufshcd_print_evt_hist(hba);
 		ufshcd_print_host_state(hba);
-		goto free_tmf_queue;
+		goto out_disable;
 	}
 
 	/*
@@ -10626,6 +10622,10 @@  int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	 */
 	ufshcd_set_ufs_dev_active(hba);
 
+	err = ufshcd_add_scsi_host(hba);
+	if (err)
+		goto out_disable;
+
 	async_schedule(ufshcd_async_scan, hba);
 	ufs_sysfs_add_nodes(hba->dev);
 
@@ -10633,12 +10633,6 @@  int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	ufshcd_pm_qos_init(hba);
 	return 0;
 
-free_tmf_queue:
-	blk_mq_destroy_queue(hba->tmf_queue);
-	blk_put_queue(hba->tmf_queue);
-	blk_mq_free_tag_set(&hba->tmf_tag_set);
-	if (hba->scsi_host_added)
-		scsi_remove_host(hba->host);
 out_disable:
 	hba->is_irq_enabled = false;
 	ufshcd_hba_exit(hba);