linux-kernel - Re: [PATCH v2] s390/kvm: avoid hypfs error message

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Message-ID: <9a188023-8a3e-547c-2e09-c6c7a7078ea8@linux.ibm.com>
Date:   Mon, 20 Jun 2022 11:48:14 +0200
From:   Christian Borntraeger <borntraeger@...ux.ibm.com>
To:     Juergen Gross <jgross@...e.com>, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>
Subject: Re: [PATCH v2] s390/kvm: avoid hypfs error message



Am 20.06.22 um 11:45 schrieb Juergen Gross:
> When booting under KVM the following error messages are issued:
> 
> hypfs.7f5705: The hardware system does not support hypfs
> hypfs.7a79f0: Initialization of hypfs failed with rc=-61
> 
> Demote the severity of first message from "error" to "info" and issue
> the second message only in other error cases.
> 
> Signed-off-by: Juergen Gross <jgross@...e.com>

Acked-by: Christian Borntraeger <borntraeger@...ux.ibm.com>

> ---
> V2:
> - don't bail out if KVM, but avoid error messages instead (Christian
>    Borntraeger)
> ---
>   arch/s390/hypfs/hypfs_diag.c | 2 +-
>   arch/s390/hypfs/inode.c      | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
> index f0bc4dc3e9bf..6511d15ace45 100644
> --- a/arch/s390/hypfs/hypfs_diag.c
> +++ b/arch/s390/hypfs/hypfs_diag.c
> @@ -437,7 +437,7 @@ __init int hypfs_diag_init(void)
>   	int rc;
>   
>   	if (diag204_probe()) {
> -		pr_err("The hardware system does not support hypfs\n");
> +		pr_info("The hardware system does not support hypfs\n");
>   		return -ENODATA;
>   	}
>   
> diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
> index 5c97f48cea91..ee919bfc8186 100644
> --- a/arch/s390/hypfs/inode.c
> +++ b/arch/s390/hypfs/inode.c
> @@ -496,9 +496,9 @@ static int __init hypfs_init(void)
>   	hypfs_vm_exit();
>   fail_hypfs_diag_exit:
>   	hypfs_diag_exit();
> +	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
>   fail_dbfs_exit:
>   	hypfs_dbfs_exit();
> -	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
>   	return rc;
>   }
>   device_initcall(hypfs_init)