linux-kernel - Re: [PATCH] arch: riscv: fix logic error in parse

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Date:   Thu, 7 Feb 2019 14:47:20 -0800
From:   Atish Patra <atish.patra@....com>
To:     Andreas Schwab <schwab@...e.de>,
        Paul Walmsley <paul.walmsley@...ive.com>
Cc:     "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "paul@...an.com" <paul@...an.com>,
        "palmer@...ive.com" <palmer@...ive.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "aou@...s.berkeley.edu" <aou@...s.berkeley.edu>
Subject: Re: [PATCH] arch: riscv: fix logic error in parse_dtb

On 2/7/19 6:44 AM, Andreas Schwab wrote:
> The function early_init_dt_scan returns true if a DTB was detected.
> 
> Fixes: 8fd6e05c7463 ("arch: riscv: support kernel command line forcing when no DTB passed")
> Signed-off-by: Andreas Schwab <schwab@...e.de>
> ---
>   arch/riscv/kernel/setup.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
> index 45e9a2f053dc..84f19ca6d88b 100644
> --- a/arch/riscv/kernel/setup.c
> +++ b/arch/riscv/kernel/setup.c
> @@ -140,7 +140,7 @@ asmlinkage void __init setup_vm(void)
>   
>   void __init parse_dtb(unsigned int hartid, void *dtb)
>   {
> -	if (!early_init_dt_scan(__va(dtb)))
> +	if (early_init_dt_scan(__va(dtb)))
>   		return;
>   
>   	pr_err("No DTB passed to the kernel\n");
> 

Good catch. I was surprised to see "No DTB passed.." message with rc5.

Reviewed-by: Atish Patra <atish.patra@....com>

Regards,
Atish