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

   1 From e08bcbbaa52fcc41f02743fd2e62a33255ce52da Mon Sep 17 00:00:00 2001
   2 From: OpenWrt community <openwrt-devel@lists.openwrt.org>
   3 Date: Wed, 13 Jul 2022 13:52:28 +0200
   4 Subject: [PATCH] of/ftd: add device tree cmdline
   5
   6 ---
   7  drivers/of/fdt.c | 3 +++
   8  1 file changed, 3 insertions(+)
   9
  10 diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
  11 index 59a7a9ee58ef..3b0b62b410dd 100644
  12 --- a/drivers/of/fdt.c
  13 +++ b/drivers/of/fdt.c
  14 @@ -1158,6 +1158,9 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
  15         p = of_get_flat_dt_prop(node, "bootargs", &l);
  16         if (p != NULL && l > 0)
  17                 strlcpy(data, p, min(l, COMMAND_LINE_SIZE));
  18 +       p = of_get_flat_dt_prop(node, "bootargs-append", &l);
  19 +       if (p != NULL && l > 0)
  20 +               strlcat(data, p, min_t(int, strlen(data) + (int)l, COMMAND_LINE_SIZE));
  21
  22         /*
  23          * CONFIG_CMDLINE is meant to be a default in case nothing else
  24 --
  25