linux-kernel - [PATCH v2 0/7] of/fdt: Some bug fixes and cleanups

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Message-ID: <20251113155104.226617-1-yuntao.wang@linux.dev>
Date: Thu, 13 Nov 2025 23:50:57 +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>,
	James Morse <james.morse@....com>,
	Baoquan He <bhe@...hat.com>,
	Zhen Lei <thunder.leizhen@...wei.com>,
	Ard Biesheuvel <ardb@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Geoff Levand <geoff@...radead.org>,
	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 v2 0/7] of/fdt: Some bug fixes and cleanups

This patch series fixes several bugs related to dt_root_addr_cells and
dt_root_size_cells, and performs some cleanup.

Changelog:

v1: Consolidate duplicate code into helper functions

Links:

v1: https://lore.kernel.org/linux-devicetree/20251112143520.233870-11-yuntao.wang@linux.dev/t/

Yuntao Wang (7):
  of/fdt: Consolidate duplicate code into helper functions
  of/fdt: Fix the len check in early_init_dt_check_for_elfcorehdr()
  of/fdt: Fix the len check in
    early_init_dt_check_for_usable_mem_range()
  of/fdt: Fix incorrect use of dt_root_addr_cells in
    early_init_dt_check_kho()
  of/fdt: Simplify the logic of early_init_dt_scan_memory()
  of/reserved_mem: Simplify the logic of __reserved_mem_reserve_reg()
  of/reserved_mem: Simplify the logic of
    fdt_scan_reserved_mem_reg_nodes()

 drivers/of/fdt.c             | 93 ++++++++++++++++++++++--------------
 drivers/of/of_reserved_mem.c | 37 ++++----------
 include/linux/of_fdt.h       |  5 ++
 3 files changed, 72 insertions(+), 63 deletions(-)

-- 
2.51.0