of/fdt: move elfcorehdr reservation early for crash dump kernel

[ Upstream commit 132507ed04ce0c5559be04dd378fec4f3bbc00e8 ]

elfcorehdr_addr is fixed address passed to Second kernel which may be conflicted
with potential reserved memory in Second kernel,so fdt_reserve_elfcorehdr() ahead
of fdt_init_reserved_mem() can relieve this situation.

Signed-off-by: Nikhil Gupta <nikhil.gupta@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220128042321.15228-1-nikhil.gupta@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 7e868e5995b7e7ce39183d1458ff91d6eab8d4e2..f66abb496ed1650efb6a5d497b5126593d385745 100644 (file)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -644,8 +644,8 @@ void __init early_init_fdt_scan_reserved_mem(void)
        }
 
        fdt_scan_reserved_mem();
-       fdt_init_reserved_mem();
        fdt_reserve_elfcorehdr();
+       fdt_init_reserved_mem();
 }
 
 /**