diff options
| author | Zhihong Dong <donmor3000@hotmail.com> | 2023-07-28 05:30:42 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-07-28 05:30:42 +0300 |
| commit | 83da30d73b86ab5898fb84f8b49c11557c3fcc67 (patch) | |
| tree | ca4e11a74646cd844be4a735c307b6daaf96f249 | |
| parent | 03c53eb90c0c61885b2175adf8675fb56df7f8db (diff) | |
| download | linux-83da30d73b86ab5898fb84f8b49c11557c3fcc67.tar.xz | |
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 <donmor3000@hotmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/kernel/setup.c | 16 |
1 files changed, 16 insertions, 0 deletions
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; } |