From: Rob Herring <robh@kernel.org>
To: Geoff Levand <geoff@infradead.org>,
Alexander Sverdlin <alexander.sverdlin@gmail.com>,
Frank Rowand <frowand.list@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] Revert "of: fdt: Honor CONFIG_CMDLINE* even without /chosen node"
Date: Tue, 03 Jan 2023 12:00:31 -0600 [thread overview]
Message-ID: <20230103-dt-cmdline-fix-v1-1-7038e88b18b6@kernel.org> (raw)
In-Reply-To: <20230103-dt-cmdline-fix-v1-0-7038e88b18b6@kernel.org>
This reverts commit a7d550f82b445cf218b47a2c1a9c56e97ecb8c7a.
Some arches (PPC at least) don't call early_init_dt_scan_nodes(), so
moving the cmdline processing there breaks them.
Reported-by: Geoff Levand <geoff@infradead.org>
Cc: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
drivers/of/fdt.c | 40 ++++++++++++++++++++--------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index b2272bccf85c..7b571a631639 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1173,6 +1173,26 @@ int __init early_init_dt_scan_chosen(char *cmdline)
if (p != NULL && l > 0)
strscpy(cmdline, p, min(l, COMMAND_LINE_SIZE));
+ /*
+ * CONFIG_CMDLINE is meant to be a default in case nothing else
+ * managed to set the command line, unless CONFIG_CMDLINE_FORCE
+ * is set in which case we override whatever was found earlier.
+ */
+#ifdef CONFIG_CMDLINE
+#if defined(CONFIG_CMDLINE_EXTEND)
+ strlcat(cmdline, " ", COMMAND_LINE_SIZE);
+ strlcat(cmdline, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#elif defined(CONFIG_CMDLINE_FORCE)
+ strscpy(cmdline, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#else
+ /* No arguments from boot loader, use kernel's cmdl*/
+ if (!((char *)cmdline)[0])
+ strscpy(cmdline, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif
+#endif /* CONFIG_CMDLINE */
+
+ pr_debug("Command line is: %s\n", (char *)cmdline);
+
rng_seed = of_get_flat_dt_prop(node, "rng-seed", &l);
if (rng_seed && l > 0) {
add_bootloader_randomness(rng_seed, l);
@@ -1277,26 +1297,6 @@ void __init early_init_dt_scan_nodes(void)
if (rc)
pr_warn("No chosen node found, continuing without\n");
- /*
- * CONFIG_CMDLINE is meant to be a default in case nothing else
- * managed to set the command line, unless CONFIG_CMDLINE_FORCE
- * is set in which case we override whatever was found earlier.
- */
-#ifdef CONFIG_CMDLINE
-#if defined(CONFIG_CMDLINE_EXTEND)
- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
- strlcat(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#elif defined(CONFIG_CMDLINE_FORCE)
- strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#else
- /* No arguments from boot loader, use kernel's cmdl */
- if (!boot_command_line[0])
- strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif
-#endif /* CONFIG_CMDLINE */
-
- pr_debug("Command line is: %s\n", boot_command_line);
-
/* Setup memory, calling early_init_dt_add_memory_arch */
early_init_dt_scan_memory();
--
2.39.0
next prev parent reply other threads:[~2023-01-03 18:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-03 18:00 [PATCH 0/2] of: Fix handling CONFIG_CMDLINE* even without /chosen node Rob Herring
2023-01-03 18:00 ` Rob Herring [this message]
2023-01-03 18:00 ` [PATCH 2/2] of: fdt: Honor CONFIG_CMDLINE* even without /chosen node, take 2 Rob Herring
2023-01-04 1:31 ` [PATCH 0/2] of: Fix handling CONFIG_CMDLINE* even without /chosen node Geoff Levand
2023-01-04 9:48 ` Alexander Sverdlin
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