openwrt/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch
Olliver Schinagl d5bf46bbe8
generic: Convert incorrect generic/5.10 patches
OpenWRT's developer guide prefers having actual patches so they an be
sent upstream more easily.

However, in this case, Adding proper fields also allows for `git am` to
properly function. Some of these patches are quite old, and lack much
traceable history.

This commit tries to rectify that, by digging in the history to find
where and how it was first added.

It is by no means perfect and also shows some patches that should have
been long gone.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-10-01 02:47:56 +02:00

29 lines
1.0 KiB
Diff

From a9968d9cb8cb10030491fa05e24b00bd42f6d3a9 Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Thu, 30 May 2013 16:00:42 +0000
Subject: fdt: enable retrieving kernel args from bootloader
This patch is a device tree enhancement that IMHO is worthy of mainline.
It allows the bootloader's commandline to be preserved even when the
device tree specifies one.
Submitted-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
SVN-Revision: 36780
---
drivers/of/fdt.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1055,6 +1055,9 @@ 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