linux-kernel - [tip: irq/core] bus: fsl-mc-msi: Switch to domain id aware interfaces

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <167026471790.4906.17520351418938687087.tip-bot2@tip-bot2>
Date:   Mon, 05 Dec 2022 18:25:17 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Kevin Tian <kevin.tian@...el.com>,
        Marc Zyngier <maz@...nel.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: irq/core] bus: fsl-mc-msi: Switch to domain id aware interfaces

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     46a2bc8c7092cf277fb486c0629894ed904984a4
Gitweb:        https://git.kernel.org/tip/46a2bc8c7092cf277fb486c0629894ed904984a4
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Fri, 25 Nov 2022 00:24:40 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 05 Dec 2022 19:21:00 +01:00

bus: fsl-mc-msi: Switch to domain id aware interfaces

Switch to the new domain id aware interfaces to phase out the previous
ones.

Get rid of the MSI descriptor and domain checks as the core code detects
these issues anyway.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Kevin Tian <kevin.tian@...el.com>
Acked-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20221124230314.575538524@linutronix.de

---
 drivers/bus/fsl-mc/fsl-mc-msi.c | 25 +++----------------------
 1 file changed, 3 insertions(+), 22 deletions(-)

diff --git a/drivers/bus/fsl-mc/fsl-mc-msi.c b/drivers/bus/fsl-mc/fsl-mc-msi.c
index 0cfe859..f3f8af9 100644
--- a/drivers/bus/fsl-mc/fsl-mc-msi.c
+++ b/drivers/bus/fsl-mc/fsl-mc-msi.c
@@ -213,21 +213,8 @@ struct irq_domain *fsl_mc_find_msi_domain(struct device *dev)
 
 int fsl_mc_msi_domain_alloc_irqs(struct device *dev,  unsigned int irq_count)
 {
-	struct irq_domain *msi_domain;
-	int error;
-
-	msi_domain = dev_get_msi_domain(dev);
-	if (!msi_domain)
-		return -EINVAL;
-
-	error = msi_setup_device_data(dev);
-	if (error)
-		return error;
+	int error = msi_setup_device_data(dev);
 
-	msi_lock_descs(dev);
-	if (msi_first_desc(dev, MSI_DESC_ALL))
-		error = -EINVAL;
-	msi_unlock_descs(dev);
 	if (error)
 		return error;
 
@@ -235,7 +222,7 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,  unsigned int irq_count)
 	 * NOTE: Calling this function will trigger the invocation of the
 	 * its_fsl_mc_msi_prepare() callback
 	 */
-	error = msi_domain_alloc_irqs(msi_domain, dev, irq_count);
+	error = msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0, irq_count - 1);
 
 	if (error)
 		dev_err(dev, "Failed to allocate IRQs\n");
@@ -244,11 +231,5 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,  unsigned int irq_count)
 
 void fsl_mc_msi_domain_free_irqs(struct device *dev)
 {
-	struct irq_domain *msi_domain;
-
-	msi_domain = dev_get_msi_domain(dev);
-	if (!msi_domain)
-		return;
-
-	msi_domain_free_irqs(msi_domain, dev);
+	msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN);
 }