linux-kernel - Re: [PATCH v5 06/25] powerpc/secvar: Use sysfs

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Message-ID: <ab6b55d9-ce8b-868d-fec1-6d02c89943eb@linux.ibm.com>
Date:   Tue, 31 Jan 2023 10:20:06 -0500
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     Andrew Donnellan <ajd@...ux.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-integrity@...r.kernel.org
Cc:     ruscur@...sell.cc, bgray@...ux.ibm.com, nayna@...ux.ibm.com,
        gcwilson@...ux.ibm.com, gjoyce@...ux.ibm.com, brking@...ux.ibm.com,
        sudhakar@...ux.ibm.com, erichte@...ux.ibm.com,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        zohar@...ux.ibm.com, joel@....id.au, npiggin@...il.com
Subject: Re: [PATCH v5 06/25] powerpc/secvar: Use sysfs_emit() instead of
 sprintf()



On 1/31/23 01:39, Andrew Donnellan wrote:
> From: Russell Currey <ruscur@...sell.cc>
> 
> The secvar format string and object size sysfs files are both ASCII
> text, and should use sysfs_emit().  No functional change.
> 
> Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Russell Currey <ruscur@...sell.cc>
> Signed-off-by: Andrew Donnellan <ajd@...ux.ibm.com>
> 
> ---
> 
> v2: New patch (gregkh)
> ---
>   arch/powerpc/kernel/secvar-sysfs.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/secvar-sysfs.c b/arch/powerpc/kernel/secvar-sysfs.c
> index 702044edf14d..b786d1005027 100644
> --- a/arch/powerpc/kernel/secvar-sysfs.c
> +++ b/arch/powerpc/kernel/secvar-sysfs.c
> @@ -35,7 +35,7 @@ static ssize_t format_show(struct kobject *kobj, struct kobj_attribute *attr,
>   	if (rc)
>   		goto out;
>   
> -	rc = sprintf(buf, "%s\n", format);
> +	rc = sysfs_emit(buf, "%s\n", format);
>   
>   out:
>   	of_node_put(node);
> @@ -57,7 +57,7 @@ static ssize_t size_show(struct kobject *kobj, struct kobj_attribute *attr,
>   		return rc;
>   	}
>   
> -	return sprintf(buf, "%llu\n", dsize);
> +	return sysfs_emit(buf, "%llu\n", dsize);
>   }
>   
>   static ssize_t data_read(struct file *filep, struct kobject *kobj,

Reviewed-by: Stefan Berger <stefanb@...ux.ibm.com>