linux-kernel - Re: [PATCH] arch: riscv: support kernel command line forcing when no DTB passed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <mvm36p22ksx.fsf@suse.de>
Date:   Tue, 05 Feb 2019 18:43:10 +0100
From:   Andreas Schwab <schwab@...e.de>
To:     Paul Walmsley <paul.walmsley@...ive.com>
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        paul@...an.com, palmer@...ive.com, aou@...s.berkeley.edu
Subject: Re: [PATCH] arch: riscv: support kernel command line forcing when no DTB passed

On Dez 17 2018, Paul Walmsley <paul.walmsley@...ive.com> wrote:

> diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
> index 2c290e6aaa6e..e6b962ff39b1 100644
> --- a/arch/riscv/kernel/setup.c
> +++ b/arch/riscv/kernel/setup.c
> @@ -171,7 +171,14 @@ asmlinkage void __init setup_vm(void)
>  
>  void __init parse_dtb(unsigned int hartid, void *dtb)
>  {
> -	early_init_dt_scan(__va(dtb));
> +	if (!early_init_dt_scan(__va(dtb)))
> +		return;
> +
> +	pr_err("No DTB passed to the kernel\n");

Isn't that backwards?  early_init_dt_scan returns true if it found a
DTB.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@...e.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."