openwrt/target/linux/generic/hack-5.15/920-device_tree_cmdline.patch

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From e08bcbbaa52fcc41f02743fd2e62a33255ce52da Mon Sep 17 00:00:00 2001
From: OpenWrt community <openwrt-devel@lists.openwrt.org>
Date: Wed, 13 Jul 2022 13:52:28 +0200
Subject: [PATCH] of/ftd: add device tree cmdline
---
drivers/of/fdt.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1158,6 +1158,9 @@ int __init early_init_dt_scan_chosen(uns
p = of_get_flat_dt_prop(node, "bootargs", &l);
if (p != NULL && l > 0)
strlcpy(data, p, min(l, COMMAND_LINE_SIZE));
+ p = of_get_flat_dt_prop(node, "bootargs-append", &l);
+ if (p != NULL && l > 0)
+ strlcat(data, p, min_t(int, strlen(data) + (int)l, COMMAND_LINE_SIZE));
/*
* CONFIG_CMDLINE is meant to be a default in case nothing else