linux-kernel - [PATCH v2 50/57] irqdomain: Use irq_domain

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Message-ID: <20250319092951.37667-51-jirislaby@kernel.org>
Date: Wed, 19 Mar 2025 10:29:43 +0100
From: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
To: tglx@...utronix.de
Cc: maz@...nel.org,
	linux-kernel@...r.kernel.org,
	"Jiri Slaby (SUSE)" <jirislaby@...nel.org>
Subject: [PATCH v2 50/57] irqdomain: Use irq_domain_instantiate() retvals as initializers

I was thinking whether add a \n before the 'return' or this. And this
looks both more compact and more readable.

Note irq_domain_create_hierarchy()'s handling of size is now part of
info's initializer (using the ternary operator). That makes more sense
while reading it.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
---
 include/linux/irqdomain.h | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d5c9e32ff0a2..bf52a08f3255 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -403,9 +403,8 @@ static inline struct irq_domain *irq_domain_create_nomap(struct fwnode_handle *f
 		.ops		= ops,
 		.host_data	= host_data,
 	};
-	struct irq_domain *d;
+	struct irq_domain *d = irq_domain_instantiate(&info);
 
-	d = irq_domain_instantiate(&info);
 	return IS_ERR(d) ? NULL : d;
 }
 
@@ -424,9 +423,8 @@ static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle *
 		.ops		= ops,
 		.host_data	= host_data,
 	};
-	struct irq_domain *d;
+	struct irq_domain *d = irq_domain_instantiate(&info);
 
-	d = irq_domain_instantiate(&info);
 	return IS_ERR(d) ? NULL : d;
 }
 
@@ -440,9 +438,8 @@ static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fw
 		.ops		= ops,
 		.host_data	= host_data,
 	};
-	struct irq_domain *d;
+	struct irq_domain *d = irq_domain_instantiate(&info);
 
-	d = irq_domain_instantiate(&info);
 	return IS_ERR(d) ? NULL : d;
 }
 
@@ -554,18 +551,14 @@ static inline struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *
 	struct irq_domain_info info = {
 		.fwnode		= fwnode,
 		.size		= size,
-		.hwirq_max	= size,
+		.hwirq_max	= size ? : ~0U,
 		.ops		= ops,
 		.host_data	= host_data,
 		.domain_flags	= flags,
 		.parent		= parent,
 	};
-	struct irq_domain *d;
-
-	if (!info.size)
-		info.hwirq_max = ~0U;
+	struct irq_domain *d = irq_domain_instantiate(&info);
 
-	d = irq_domain_instantiate(&info);
 	return IS_ERR(d) ? NULL : d;
 }
 
-- 
2.49.0