[patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()

Thomas Gleixner posted 10 patches 11 months ago
There is a newer version of this series
[patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()
Posted by Thomas Gleixner 11 months ago
Convert the code to use the new guard(msi_descs_lock).

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tero Kristo <kristo@kernel.org>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
---
 drivers/soc/ti/ti_sci_inta_msi.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

--- a/drivers/soc/ti/ti_sci_inta_msi.c
+++ b/drivers/soc/ti/ti_sci_inta_msi.c
@@ -103,19 +103,15 @@ int ti_sci_inta_msi_domain_alloc_irqs(st
 	if (ret)
 		return ret;
 
-	msi_lock_descs(dev);
+	guard(msi_descs_lock)(dev);
 	nvec = ti_sci_inta_msi_alloc_descs(dev, res);
-	if (nvec <= 0) {
-		ret = nvec;
-		goto unlock;
-	}
+	if (nvec <= 0)
+		return nvec;
 
 	/* Use alloc ALL as it's unclear whether there are gaps in the indices */
 	ret = msi_domain_alloc_irqs_all_locked(dev, MSI_DEFAULT_DOMAIN, nvec);
 	if (ret)
 		dev_err(dev, "Failed to allocate IRQs %d\n", ret);
-unlock:
-	msi_unlock_descs(dev);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_alloc_irqs);
Re: [patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()
Posted by Dhruva Gole 11 months ago
On Mar 09, 2025 at 09:41:46 +0100, Thomas Gleixner wrote:
> Convert the code to use the new guard(msi_descs_lock).
> 
> No functional change intended.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Nishanth Menon <nm@ti.com>
> Cc: Tero Kristo <kristo@kernel.org>
> Cc: Santosh Shilimkar <ssantosh@kernel.org>
> ---
>  drivers/soc/ti/ti_sci_inta_msi.c |   10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)

Reviewed-by: Dhruva Gole <d-gole@ti.com>

> 
> --- a/drivers/soc/ti/ti_sci_inta_msi.c
> +++ b/drivers/soc/ti/ti_sci_inta_msi.c
> @@ -103,19 +103,15 @@ int ti_sci_inta_msi_domain_alloc_irqs(st
>  	if (ret)
>  		return ret;
>  
> -	msi_lock_descs(dev);
> +	guard(msi_descs_lock)(dev);
>  	nvec = ti_sci_inta_msi_alloc_descs(dev, res);
> -	if (nvec <= 0) {
> -		ret = nvec;
> -		goto unlock;
> -	}
> +	if (nvec <= 0)
> +		return nvec;
>  
>  	/* Use alloc ALL as it's unclear whether there are gaps in the indices */
>  	ret = msi_domain_alloc_irqs_all_locked(dev, MSI_DEFAULT_DOMAIN, nvec);
>  	if (ret)
>  		dev_err(dev, "Failed to allocate IRQs %d\n", ret);
> -unlock:
> -	msi_unlock_descs(dev);
>  	return ret;
>  }
>  EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_alloc_irqs);
> 
> 

-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated
Re: [patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()
Posted by Nishanth Menon 11 months ago
On 09:41-20250309, Thomas Gleixner wrote:
> Convert the code to use the new guard(msi_descs_lock).
> 
> No functional change intended.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Nishanth Menon <nm@ti.com>
> Cc: Tero Kristo <kristo@kernel.org>
> Cc: Santosh Shilimkar <ssantosh@kernel.org>
> ---
>  drivers/soc/ti/ti_sci_inta_msi.c |   10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> --- a/drivers/soc/ti/ti_sci_inta_msi.c
> +++ b/drivers/soc/ti/ti_sci_inta_msi.c
> @@ -103,19 +103,15 @@ int ti_sci_inta_msi_domain_alloc_irqs(st
>  	if (ret)
>  		return ret;
>  
> -	msi_lock_descs(dev);
> +	guard(msi_descs_lock)(dev);
>  	nvec = ti_sci_inta_msi_alloc_descs(dev, res);
> -	if (nvec <= 0) {
> -		ret = nvec;
> -		goto unlock;
> -	}
> +	if (nvec <= 0)
> +		return nvec;
>  
>  	/* Use alloc ALL as it's unclear whether there are gaps in the indices */
>  	ret = msi_domain_alloc_irqs_all_locked(dev, MSI_DEFAULT_DOMAIN, nvec);
>  	if (ret)
>  		dev_err(dev, "Failed to allocate IRQs %d\n", ret);
> -unlock:
> -	msi_unlock_descs(dev);
>  	return ret;
>  }
>  EXPORT_SYMBOL_GPL(ti_sci_inta_msi_domain_alloc_irqs);
> 

Quick test of the series for basic NFS boot (which uses INTR/INTA MSI
for Ethernet) on TI K3 platforms against linux-next:
https://gist.github.com/nmenon/26ea6eb530de34808ab04b1958a0b28b

Tested-by: Nishanth Menon <nm@ti.com>

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
Re: [patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking to guard()
Posted by Jonathan Cameron 11 months ago
On Sun,  9 Mar 2025 09:41:46 +0100 (CET)
Thomas Gleixner <tglx@linutronix.de> wrote:

> Convert the code to use the new guard(msi_descs_lock).
> 
> No functional change intended.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Nishanth Menon <nm@ti.com>
> Cc: Tero Kristo <kristo@kernel.org>
> Cc: Santosh Shilimkar <ssantosh@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>