linux-kernel - [PATCH v4 2/2] of: Align macro MAX_PHANDLE_ARGS with NR_FWNODE_REFERENCE

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Message-Id: <20250225-fix_arg_count-v4-2-13cdc519eb31@quicinc.com>
Date: Tue, 25 Feb 2025 21:58:07 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Daniel Scally <djrscally@...il.com>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Danilo Krummrich <dakr@...nel.org>, Rob Herring <robh@...nel.org>, 
 Saravana Kannan <saravanak@...gle.com>
Cc: Zijun Hu <zijun_hu@...oud.com>, linux-acpi@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 Zijun Hu <quic_zijuhu@...cinc.com>
Subject: [PATCH v4 2/2] of: Align macro MAX_PHANDLE_ARGS with
 NR_FWNODE_REFERENCE_ARGS

From: Zijun Hu <quic_zijuhu@...cinc.com>

Macro NR_FWNODE_REFERENCE_ARGS defines the maximal argument count
for firmware node reference, and MAX_PHANDLE_ARGS defines the maximal
argument count for DT node reference, both have the same value now.

To void argument count inconsistency between firmware and DT, simply
align both macros by '#define MAX_PHANDLE_ARGS NR_FWNODE_REFERENCE_ARGS'.

Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
 include/linux/of.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/of.h b/include/linux/of.h
index eaf0e2a2b75cbe4769a77f68965298c84d57e62c..86bf8f0731112456b3efc2e5ee00e73000c6af56 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -67,7 +67,7 @@ struct device_node {
 #endif
 };

-#define MAX_PHANDLE_ARGS 16
+#define MAX_PHANDLE_ARGS NR_FWNODE_REFERENCE_ARGS
 struct of_phandle_args {
 	struct device_node *np;
 	int args_count;

-- 
2.34.1