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

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Message-ID: <20250309084110.330984023@linutronix.de>
Date: Sun,  9 Mar 2025 09:41:46 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Marc Zyngier <maz@...nel.org>,
 Nishanth Menon <nm@...com>,
 Tero Kristo <kristo@...nel.org>,
 Santosh Shilimkar <ssantosh@...nel.org>,
 Jon Mason <jdmason@...zu.us>,
 Dave Jiang <dave.jiang@...el.com>,
 Allen Hubbe <allenbh@...il.com>,
 ntb@...ts.linux.dev,
 Bjorn Helgaas <bhelgaas@...gle.com>,
 linux-pci@...r.kernel.org,
 Haiyang Zhang <haiyangz@...rosoft.com>,
 Wei Liu <wei.liu@...nel.org>,
 linux-hyperv@...r.kernel.org,
 Wei Huang <wei.huang2@....com>,
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
 "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
 "Martin K. Petersen" <martin.petersen@...cle.com>,
 linux-scsi@...r.kernel.org
Subject: [patch 03/10] soc: ti: ti_sci_inta_msi: Switch MSI descriptor locking
 to guard()

Convert the code to use the new guard(msi_descs_lock).

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Nishanth Menon <nm@...com>
Cc: Tero Kristo <kristo@...nel.org>
Cc: Santosh Shilimkar <ssantosh@...nel.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);