linux-kernel - Re: [PATCH] loongarch: Make CONFIG_CMDLINE work with CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE

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Message-ID: <93faf53150732ac776e68e34709a9aa8c88b5944.camel@hotmail.com>
Date:   Sun, 9 Jul 2023 17:35:39 +0000
From:   ‎ donmor <donmor3000@...mail.com>
To:     "Markus.Elfring@....de" <Markus.Elfring@....de>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "chenhuacai@...nel.org" <chenhuacai@...nel.org>,
        "loongarch@...ts.linux.dev" <loongarch@...ts.linux.dev>,
        "kernel@...0n.name" <kernel@...0n.name>
CC:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "tangyouling@...ngson.cn" <tangyouling@...ngson.cn>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ardb@...nel.org" <ardb@...nel.org>,
        "yangtiezhu@...ngson.cn" <yangtiezhu@...ngson.cn>,
        "zhoubinbin@...ngson.cn" <zhoubinbin@...ngson.cn>
Subject: Re: [PATCH] loongarch: Make CONFIG_CMDLINE work with
 CONFIG_CMDLINE_EXTEND and CONFIG_CMDLINE_BOOTLOADER

在 2023-07-09星期日的 17:43 +0200，Markus Elfring写道：
> > This patch tends to fix broken CONFIG_CMDLINE, which is not working with
> > CONFIG_CMDLINE_EXTEND or CONFIG_CMDLINE_BOOTLOADER. Some code is absent in
> > arch/loongarch/kernel/setup.c, which should handle built-in command lines
> > in CONFIG_CMDLINE. The absence of such code causes CONFIG_CMDLINE not
> > working if CONFIG_CMDLINE_EXTEND or CONFIG_CMDLINE_BOOTLOADER is set to Y.
> …
> 
> Which circumstances did hinder you to choose another imperative change suggestion?
> 
> See also:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.4#n94
> 
> Regards,
> Markus

I'm trying boot the system with a single bootloongarch64.efi and got stuck on mounting
rootfs. It turns out to be the malfunction of kernel which dropped my built-in command
line. It's quiet annoying to be lacking a feature compared to other architectures.
Also, a feature shown in config should be functioning, or be considered buggy and get
fixed.