From 83da30d73b86ab5898fb84f8b49c11557c3fcc67 Mon Sep 17 00:00:00 2001 From: Zhihong Dong Date: Fri, 28 Jul 2023 10:30:42 +0800 Subject: [PATCH] LoongArch: Fix CMDLINE_EXTEND and CMDLINE_BOOTLOADER handling On FDT systems these command line processing are already taken care of by early_init_dt_scan_chosen(). Add similar handling to the ACPI (non- FDT) code path to allow these config options to work for ACPI (non-FDT) systems too. Signed-off-by: Zhihong Dong Signed-off-by: Huacai Chen --- arch/loongarch/kernel/setup.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index 78a00359bde3..9d830ab4e302 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -332,9 +332,25 @@ static void __init bootcmdline_init(char **cmdline_p) strlcat(boot_command_line, " ", COMMAND_LINE_SIZE); strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE); + goto out; } #endif + /* + * Append built-in command line to the bootloader command line if + * CONFIG_CMDLINE_EXTEND is enabled. + */ + if (IS_ENABLED(CONFIG_CMDLINE_EXTEND) && CONFIG_CMDLINE[0]) { + strlcat(boot_command_line, " ", COMMAND_LINE_SIZE); + strlcat(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); + } + + /* + * Use built-in command line if the bootloader command line is empty. + */ + if (IS_ENABLED(CONFIG_CMDLINE_BOOTLOADER) && !boot_command_line[0]) + strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); + out: *cmdline_p = boot_command_line; } -- 2.20.1