linux-kernel - [PATCH v4 08/14] of: Remove a duplicated code block

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Message-Id: <20250109-of_core_fix-v4-8-db8a72415b8c@quicinc.com>
Date: Thu, 09 Jan 2025 21:26:59 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>, 
 Maxime Ripard <mripard@...nel.org>, Robin Murphy <robin.murphy@....com>, 
 Grant Likely <grant.likely@...retlab.ca>, Marc Zyngier <maz@...nel.org>, 
 Andreas Herrmann <andreas.herrmann@...xeda.com>, 
 Marek Szyprowski <m.szyprowski@...sung.com>, 
 Catalin Marinas <catalin.marinas@....com>, Mike Rapoport <rppt@...nel.org>, 
 Oreoluwa Babatunde <quic_obabatun@...cinc.com>
Cc: Zijun Hu <zijun_hu@...oud.com>, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Zijun Hu <quic_zijuhu@...cinc.com>
Subject: [PATCH v4 08/14] of: Remove a duplicated code block

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

address.c has a same code block with fdt_address.c.

Remove a copy by moving the duplicated code block into of_private.h.

Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
 drivers/of/address.c     | 21 +++------------------
 drivers/of/fdt_address.c | 21 ++++-----------------
 drivers/of/of_private.h  | 18 ++++++++++++++++++
 3 files changed, 25 insertions(+), 35 deletions(-)

diff --git a/drivers/of/address.c b/drivers/of/address.c
index c5b925ac469f16b8ae4b8275b60210a2d583ff83..6c40f96a19610c19d9594a9605fd9a2fa2c97cd4 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -16,25 +16,10 @@
 #include <linux/string.h>
 #include <linux/dma-direct.h> /* for bus_dma_region */
 
-#include "of_private.h"
-
-/* Max address size we deal with */
-#define OF_MAX_ADDR_CELLS	4
-#define OF_CHECK_ADDR_COUNT(na)	((na) > 0 && (na) <= OF_MAX_ADDR_CELLS)
-#define OF_CHECK_COUNTS(na, ns)	(OF_CHECK_ADDR_COUNT(na) && (ns) > 0)
+/* Uncomment me to enable of_dump_addr() debugging output */
+// #define DEBUG
 
-/* Debug utility */
-#ifdef DEBUG
-static void of_dump_addr(const char *s, const __be32 *addr, int na)
-{
-	pr_debug("%s", s);
-	while (na--)
-		pr_cont(" %08x", be32_to_cpu(*(addr++)));
-	pr_cont("\n");
-}
-#else
-static void of_dump_addr(const char *s, const __be32 *addr, int na) { }
-#endif
+#include "of_private.h"
 
 /* Callbacks for bus specific translators */
 struct of_bus {
diff --git a/drivers/of/fdt_address.c b/drivers/of/fdt_address.c
index 1e5311f6f1858b59b99f650bcafa55a8d11225f9..f358d2c807540e79fdd72a7e9a5328bccd88476d 100644
--- a/drivers/of/fdt_address.c
+++ b/drivers/of/fdt_address.c
@@ -17,23 +17,10 @@
 #include <linux/of_fdt.h>
 #include <linux/sizes.h>
 
-/* Max address size we deal with */
-#define OF_MAX_ADDR_CELLS	4
-#define OF_CHECK_COUNTS(na, ns)	((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
-			(ns) > 0)
-
-/* Debug utility */
-#ifdef DEBUG
-static void __init of_dump_addr(const char *s, const __be32 *addr, int na)
-{
-	pr_debug("%s", s);
-	while(na--)
-		pr_cont(" %08x", be32_to_cpu(*(addr++)));
-	pr_cont("\n");
-}
-#else
-static void __init of_dump_addr(const char *s, const __be32 *addr, int na) { }
-#endif
+/* Uncomment me to enable of_dump_addr() debugging output */
+// #define DEBUG
+
+#include "of_private.h"
 
 /* Callbacks for bus specific translators */
 struct of_bus {
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h
index 3433ccd330e84fd3a4b54638e0e922069757c8f0..f3e1193c8ded4899f39677a76da073e2266a1b9a 100644
--- a/drivers/of/of_private.h
+++ b/drivers/of/of_private.h
@@ -190,4 +190,22 @@ void __init fdt_scan_reserved_mem_reg_nodes(void);
 
 bool of_fdt_device_is_available(const void *blob, unsigned long node);
 
+/* Max address size we deal with */
+#define OF_MAX_ADDR_CELLS	4
+#define OF_CHECK_ADDR_COUNT(na)	((na) > 0 && (na) <= OF_MAX_ADDR_CELLS)
+#define OF_CHECK_COUNTS(na, ns)	(OF_CHECK_ADDR_COUNT(na) && (ns) > 0)
+
+/* Debug utility */
+#ifdef DEBUG
+static void __maybe_unused of_dump_addr(const char *s, const __be32 *addr, int na)
+{
+	pr_debug("%s", s);
+	while (na--)
+		pr_cont(" %08x", be32_to_cpu(*(addr++)));
+	pr_cont("\n");
+}
+#else
+static void __maybe_unused of_dump_addr(const char *s, const __be32 *addr, int na) { }
+#endif
+
 #endif /* _LINUX_OF_PRIVATE_H */

-- 
2.34.1