From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
For child node of /reserved-memory, its property 'reg' may contain
multiple regions, but fdt_scan_reserved_mem_reg_nodes() only takes
into account the first region, and miss remaining regions.
Give warning message when missing remaining regions.
Fixes: 8a6e02d0c00e ("of: reserved_mem: Restructure how the reserved memory regions are processed")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
drivers/of/of_reserved_mem.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 03a8f03ed1da165d6d7bf907d931857260888225..e2da88d7706ab3c208386e29f31350178e67cd14 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -263,6 +263,11 @@ void __init fdt_scan_reserved_mem_reg_nodes(void)
uname);
continue;
}
+
+ if (len > t_len)
+ pr_warn("%s() ignores %d regions in node '%s'\n",
+ __func__, len / t_len - 1, uname);
+
base = dt_mem_next_cell(dt_root_addr_cells, &prop);
size = dt_mem_next_cell(dt_root_size_cells, &prop);
--
2.34.1
