linux-kernel - [PATCH 03/10] of/reserved_mem: Use dt_root_addr_size

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Message-ID: <20251112143520.233870-4-yuntao.wang@linux.dev>
Date: Wed, 12 Nov 2025 22:35:13 +0800
From: Yuntao Wang <yuntao.wang@...ux.dev>
To: Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>,
	Catalin Marinas <catalin.marinas@....com>,
	AKASHI Takahiro <takahiro.akashi@...aro.org>,
	James Morse <james.morse@....com>,
	Chen Zhou <chenzhou10@...wei.com>,
	Baoquan He <bhe@...hat.com>,
	Zhen Lei <thunder.leizhen@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Changyuan Lyu <changyuanl@...gle.com>,
	Alexander Graf <graf@...zon.com>,
	"Mike Rapoport (Microsoft)" <rppt@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Yuntao Wang <yuntao.wang@...ux.dev>
Subject: [PATCH 03/10] of/reserved_mem: Use dt_root_addr_size_bytes() instead of open-coding it

Use dt_root_addr_size_bytes() instead of open-coding it in
fdt_scan_reserved_mem_reg_nodes() to improve code maintainability.

Signed-off-by: Yuntao Wang <yuntao.wang@...ux.dev>
---
 drivers/of/of_reserved_mem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 67c0ccd373c2..0e6b0e7968a9 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -230,7 +230,7 @@ static void __init __rmem_check_for_overlap(void);
  */
 void __init fdt_scan_reserved_mem_reg_nodes(void)
 {
-	int t_len = (dt_root_addr_cells + dt_root_size_cells) * sizeof(__be32);
+	int t_len = dt_root_addr_size_bytes();
 	const void *fdt = initial_boot_params;
 	phys_addr_t base, size;
 	const __be32 *prop;
-- 
2.51.0