linux-kernel - RE: [PATCH 3/4] powerpc: pseries: only store the device node basename in full

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Date:   Wed, 26 Jul 2017 10:07:01 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Rob Herring' <robh@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
CC:     Frank Rowand <frowand.list@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Paul Mackerras <paulus@...ba.org>
Subject: RE: [PATCH 3/4] powerpc: pseries: only store the device node
 basename in full_name

From: Rob Herring
> Sent: 25 July 2017 22:44
> With dependencies on full_name containing the entire device node path
> removed, stop storing the full_name in nodes created by
> dlpar_configure_connector() and pSeries_reconfig_add_node().
...
>	dn = kzalloc(sizeof(*dn), GFP_KERNEL);
> 	if (!dn)
> 		return NULL;
> 
> 	name = (char *)ccwa + be32_to_cpu(ccwa->name_offset);
> -	dn->full_name = kasprintf(GFP_KERNEL, "%s/%s", path, name);
> +	dn->full_name = kasprintf(GFP_KERNEL, "%s", name);

Isn't this just strdup()?
Perhaps you should rename full_name to name - since it is no longer 'full'?

Maybe you could do a single malloc() for both 'dn' and the name?

	David