linux-kernel - [PATCH AUTOSEL 4.19 4/8] m68k: mm: fix node memblock init

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Message-Id: <20200708154157.3200116-4-sashal@kernel.org>
Date:   Wed,  8 Jul 2020 11:41:52 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Angelo Dureghello <angelo.dureghello@...esys.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-m68k@...ts.linux-m68k.org
Subject: [PATCH AUTOSEL 4.19 4/8] m68k: mm: fix node memblock init

From: Angelo Dureghello <angelo.dureghello@...esys.com>

[ Upstream commit c43e55796dd4d13f4855971a4d7970ce2cd94db4 ]

After pulling 5.7.0 (linux-next merge), mcf5441x mmu boot was
hanging silently.

memblock_add() seems not appropriate, since using MAX_NUMNODES
as node id, while memblock_add_node() sets up memory for node id 0.

Signed-off-by: Angelo Dureghello <angelo.dureghello@...esys.com>
Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
Signed-off-by: Greg Ungerer <gerg@...ux-m68k.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/m68k/mm/mcfmmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index f5453d944ff5e..c5e26222979ad 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -160,7 +160,7 @@ void __init cf_bootmem_alloc(void)
 	m68k_memory[0].addr = _rambase;
 	m68k_memory[0].size = _ramend - _rambase;
 
-	memblock_add(m68k_memory[0].addr, m68k_memory[0].size);
+	memblock_add_node(m68k_memory[0].addr, m68k_memory[0].size, 0);
 
 	/* compute total pages in system */
 	num_pages = PFN_DOWN(_ramend - _rambase);
-- 
2.25.1