LOONGARCH: Make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER

[PATCH v2] LOONGARCH: Make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER

Posted by Dong Zhihong 2 years, 7 months ago

This patch tends to make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND
and CONFIG_CMDLINE_BOOTLOADER. The touched function is bootcmdline_init()`.
There's already code handling CONFIG_CMDLINE_FORCE, which replaces
`boot_command_line` with CONFIG_CMDLINE and immediately`goto out`. It'd be
similar way to handle CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER,
so I added some code after OF_FLATTREE part to handle them.

Signed-off-by: Dong Zhihong <donmor3000@hotmail.com>
---

v2 -> v1:Reworded the commit message so it's more imperative (Markus);
	Added `goto out` to FDT part (Huacai)

 arch/loongarch/kernel/setup.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 78a00359bde3..3cafda1a409e 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -332,7 +332,24 @@ 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
+
+#ifdef CONFIG_CMDLINE
+	/*
+	 * If CONFIG_CMDLINE_BOOTLOADER is enabled then we use thei built-in
+	 * command line if no command line given, or we append given command
+	 * line to the built-in one if CONFIG_CMDLINE_EXTEND is enabled.
+	 */
+	if (IS_ENABLED(CONFIG_CMDLINE_EXTEND)) {
+		strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+		strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
+		strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE);
 	}
+
+	if (IS_ENABLED(CONFIG_CMDLINE_BOOTLOADER) && !boot_command_line[0])
+		strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
 #endif
 
 out:
-- 
2.25.1

Re: [PATCH v2] LOONGARCH: Make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER

Posted by Xi Ruoyao 2 years, 7 months ago

Use "LoongArch" instead of "LOONGARCH".  "LOONGARCH" should only show up
in macro names, enum value names, etc.

On Tue, 2023-07-11 at 21:27 +0800, Dong Zhihong wrote:
> This patch tends to make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND

As Markus already told you, submitting-patches.rst says:

"Describe your changes in imperative mood, e.g. "make xyzzy do frotz"
instead of "[This patch] makes xyzzy do frotz" or "[I] changed xyzzy
to do frotz", as if you are giving orders to the codebase to change
its behaviour."

i. e. "Make CONFIG_CMDLINE work with ...".

> and CONFIG_CMDLINE_BOOTLOADER. The touched function is bootcmdline_init()`.
> There's already code handling CONFIG_CMDLINE_FORCE, which replaces
> `boot_command_line` with CONFIG_CMDLINE and immediately`goto out`. It'd be
> similar way to handle CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER,
> so I added some code after OF_FLATTREE part to handle them.
> 
> Signed-off-by: Dong Zhihong <donmor3000@hotmail.com>
> ---
> 
> v2 -> v1:Reworded the commit message so it's more imperative (Markus);
>         Added `goto out` to FDT part (Huacai)
> 
>  arch/loongarch/kernel/setup.c | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
> index 78a00359bde3..3cafda1a409e 100644
> --- a/arch/loongarch/kernel/setup.c
> +++ b/arch/loongarch/kernel/setup.c
> @@ -332,7 +332,24 @@ 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
> +
> +#ifdef CONFIG_CMDLINE
> +       /*
> +        * If CONFIG_CMDLINE_BOOTLOADER is enabled then we use thei built-in
> +        * command line if no command line given, or we append given command
> +        * line to the built-in one if CONFIG_CMDLINE_EXTEND is enabled.
> +        */
> +       if (IS_ENABLED(CONFIG_CMDLINE_EXTEND)) {
> +               strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
> +               strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
> +               strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE);
>         }
> +
> +       if (IS_ENABLED(CONFIG_CMDLINE_BOOTLOADER) && !boot_command_line[0])
> +               strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
>  #endif
>  
>  out:

-- 
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University

Re: [PATCH v2] LOONGARCH: Make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER

Posted by ‎ donmor 2 years, 7 months ago

Okay I'll get it amended right now.

donmor

在 2023-07-11星期二的 21:32 +0800，Xi Ruoyao写道：
> Use "LoongArch" instead of "LOONGARCH".  "LOONGARCH" should only show up
> in macro names, enum value names, etc.
> 
> On Tue, 2023-07-11 at 21:27 +0800, Dong Zhihong wrote:
> > This patch tends to make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND
> 
> As Markus already told you, submitting-patches.rst says:
> 
> "Describe your changes in imperative mood, e.g. "make xyzzy do frotz"
> instead of "[This patch] makes xyzzy do frotz" or "[I] changed xyzzy
> to do frotz", as if you are giving orders to the codebase to change
> its behaviour."
> 
> i. e. "Make CONFIG_CMDLINE work with ...".
> 
> > and CONFIG_CMDLINE_BOOTLOADER. The touched function is bootcmdline_init()`.
> > There's already code handling CONFIG_CMDLINE_FORCE, which replaces
> > `boot_command_line` with CONFIG_CMDLINE and immediately`goto out`. It'd be
> > similar way to handle CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER,
> > so I added some code after OF_FLATTREE part to handle them.
> > 
> > Signed-off-by: Dong Zhihong <donmor3000@hotmail.com>
> > ---
> > 
> > v2 -> v1:Reworded the commit message so it's more imperative (Markus);
> >         Added `goto out` to FDT part (Huacai)
> > 
> >  arch/loongarch/kernel/setup.c | 17 +++++++++++++++++
> >  1 file changed, 17 insertions(+)
> > 
> > diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
> > index 78a00359bde3..3cafda1a409e 100644
> > --- a/arch/loongarch/kernel/setup.c
> > +++ b/arch/loongarch/kernel/setup.c
> > @@ -332,7 +332,24 @@ 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
> > +
> > +#ifdef CONFIG_CMDLINE
> > +       /*
> > +        * If CONFIG_CMDLINE_BOOTLOADER is enabled then we use thei built-in
> > +        * command line if no command line given, or we append given command
> > +        * line to the built-in one if CONFIG_CMDLINE_EXTEND is enabled.
> > +        */
> > +       if (IS_ENABLED(CONFIG_CMDLINE_EXTEND)) {
> > +               strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
> > +               strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
> > +               strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE);
> >         }
> > +
> > +       if (IS_ENABLED(CONFIG_CMDLINE_BOOTLOADER) && !boot_command_line[0])
> > +               strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
> >  #endif
> >  
> >  out: