linux-kernel - [GIT pull] irq/domain for v6.12-rc1

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Message-ID: <172656366281.2473758.10766953231775492818.tglx@xen13>
Date: Tue, 17 Sep 2024 11:01:09 +0200 (CEST)
From: Thomas Gleixner <tglx@...utronix.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] irq/domain for v6.12-rc1

Linus,

please pull the latest irq/domain branch from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-domain-2024-09-17

up to:  74c60a96ef6a: irqdomain: Remove stray '-' in the domain name

Two small updates for interrupt domains:

  - Remove a stray '-' in the domain name

  - Consolidate and clarify the bus token checks so they explicitely check
    for DOMAIN_BUS_ANY instead of unspecified checks for zero.

Thanks,

	tglx

------------------>
Andy Shevchenko (2):
      irqdomain: Clarify checks for bus_token
      irqdomain: Remove stray '-' in the domain name


 kernel/irq/irqdomain.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 01001eb615ec..1acc5308fcb7 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -130,8 +130,10 @@ EXPORT_SYMBOL_GPL(irq_domain_free_fwnode);
 
 static int alloc_name(struct irq_domain *domain, char *base, enum irq_domain_bus_token bus_token)
 {
-	domain->name = bus_token ? kasprintf(GFP_KERNEL, "%s-%d", base, bus_token) :
-				   kasprintf(GFP_KERNEL, "%s", base);
+	if (bus_token == DOMAIN_BUS_ANY)
+		domain->name = kasprintf(GFP_KERNEL, "%s", base);
+	else
+		domain->name = kasprintf(GFP_KERNEL, "%s-%d", base, bus_token);
 	if (!domain->name)
 		return -ENOMEM;
 
@@ -146,8 +148,10 @@ static int alloc_fwnode_name(struct irq_domain *domain, const struct fwnode_hand
 	const char *suf = suffix ? : "";
 	char *name;
 
-	name = bus_token ? kasprintf(GFP_KERNEL, "%pfw-%s%s%d", fwnode, suf, sep, bus_token) :
-			   kasprintf(GFP_KERNEL, "%pfw-%s", fwnode, suf);
+	if (bus_token == DOMAIN_BUS_ANY)
+		name = kasprintf(GFP_KERNEL, "%pfw%s%s", fwnode, sep, suf);
+	else
+		name = kasprintf(GFP_KERNEL, "%pfw%s%s-%d", fwnode, sep, suf, bus_token);
 	if (!name)
 		return -ENOMEM;
 
@@ -166,11 +170,13 @@ static int alloc_unknown_name(struct irq_domain *domain, enum irq_domain_bus_tok
 	static atomic_t unknown_domains;
 	int id = atomic_inc_return(&unknown_domains);
 
-	domain->name = bus_token ? kasprintf(GFP_KERNEL, "unknown-%d-%d", id, bus_token) :
-				   kasprintf(GFP_KERNEL, "unknown-%d", id);
-
+	if (bus_token == DOMAIN_BUS_ANY)
+		domain->name = kasprintf(GFP_KERNEL, "unknown-%d", id);
+	else
+		domain->name = kasprintf(GFP_KERNEL, "unknown-%d-%d", id, bus_token);
 	if (!domain->name)
 		return -ENOMEM;
+
 	domain->flags |= IRQ_DOMAIN_NAME_ALLOCATED;
 	return 0;
 }
@@ -200,7 +206,7 @@ static int irq_domain_set_name(struct irq_domain *domain, const struct irq_domai
 			return alloc_name(domain, fwid->name, bus_token);
 		default:
 			domain->name = fwid->name;
-			if (bus_token)
+			if (bus_token != DOMAIN_BUS_ANY)
 				return alloc_name(domain, fwid->name, bus_token);
 		}