From: Johannes Thumshirn <jthumshirn@suse.de>
To: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Cc: JBottomley@odin.com, martin.petersen@oracle.com,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, nfont@linux.vnet.ibm.com,
brking@linux.vnet.ibm.com, hare@suse.de
Subject: Re: [PATCH 4/6] ibmvscsi: Use of_root to access OF device tree root node
Date: Thu, 4 Feb 2016 09:45:36 +0100 [thread overview]
Message-ID: <20160204084536.GX27969@c203.arch.suse.de> (raw)
In-Reply-To: <1454542114-1797-5-git-send-email-tyreld@linux.vnet.ibm.com>
On Wed, Feb 03, 2016 at 05:28:32PM -0600, Tyrel Datwyler wrote:
> The root node of the OF device tree is exported as of_root. No need
> to look up the root by path name. Instead just get a reference
> directly via of_root.
>
> Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
> ---
> drivers/scsi/ibmvscsi/ibmvscsi.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
> index 7e51615..47cfe33 100644
> --- a/drivers/scsi/ibmvscsi/ibmvscsi.c
> +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
> @@ -248,25 +248,23 @@ static void ibmvscsi_task(void *data)
>
> static void gather_partition_info(void)
> {
> - struct device_node *rootdn;
> -
> const char *ppartition_name;
> const __be32 *p_number_ptr;
>
> /* Retrieve information about this partition */
> - rootdn = of_find_node_by_path("/");
> - if (!rootdn) {
> + if (!of_root)
> return;
> - }
>
> - ppartition_name = of_get_property(rootdn, "ibm,partition-name", NULL);
> + of_node_get(of_root);
> +
> + ppartition_name = of_get_property(of_root, "ibm,partition-name", NULL);
> if (ppartition_name)
> strncpy(partition_name, ppartition_name,
> sizeof(partition_name));
> - p_number_ptr = of_get_property(rootdn, "ibm,partition-no", NULL);
> + p_number_ptr = of_get_property(of_root, "ibm,partition-no", NULL);
> if (p_number_ptr)
> partition_number = of_read_number(p_number_ptr, 1);
> - of_node_put(rootdn);
> + of_node_put(of_root);
> }
>
> static void set_adapter_info(struct ibmvscsi_host_data *hostdata)
> --
> 2.5.0
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
next prev parent reply other threads:[~2016-02-04 8:45 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-03 23:28 [PATCH 0/6] ibmvscsi: code cleanup Tyrel Datwyler
2016-02-03 23:28 ` [PATCH 1/6] ibmvscsi: Correct values for several viosrp_crq_format enums Tyrel Datwyler
2016-02-04 8:38 ` Johannes Thumshirn
2016-02-03 23:28 ` [PATCH 2/6] ibmvscsi: Add and use enums for valid CRQ header values Tyrel Datwyler
2016-02-04 8:39 ` Johannes Thumshirn
2016-02-04 19:55 ` Manoj Kumar
2016-02-04 21:25 ` Tyrel Datwyler
2016-02-09 17:41 ` Manoj Kumar
2016-02-09 18:27 ` Tyrel Datwyler
2016-02-03 23:28 ` [PATCH 3/6] ibmvscsi: Replace magic values in set_adpater_info() with defines Tyrel Datwyler
2016-02-04 8:44 ` Johannes Thumshirn
2016-02-03 23:28 ` [PATCH 4/6] ibmvscsi: Use of_root to access OF device tree root node Tyrel Datwyler
2016-02-04 8:45 ` Johannes Thumshirn [this message]
2016-02-03 23:28 ` [PATCH 5/6] ibmvscsi: Remove unsupported host config MAD and sysfs interface Tyrel Datwyler
2016-02-04 8:03 ` Johannes Thumshirn
2016-02-04 17:48 ` Tyrel Datwyler
2016-02-05 8:34 ` Johannes Thumshirn
2016-02-03 23:28 ` [PATCH 6/6] ibmvscsi: Add endian conversions to sysfs attribute show functions Tyrel Datwyler
2016-02-04 8:45 ` Johannes Thumshirn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160204084536.GX27969@c203.arch.suse.de \
--to=jthumshirn@suse.de \
--cc=JBottomley@odin.com \
--cc=brking@linux.vnet.ibm.com \
--cc=hare@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=martin.petersen@oracle.com \
--cc=nfont@linux.vnet.ibm.com \
--cc=tyreld@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).