linux-kernel - [PATCH v2] SCSI: fcoe: convert to use BUS_ATTR

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Date:   Tue, 22 Jan 2019 15:27:35 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Johannes Thumshirn <jth@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: [PATCH v2] SCSI: fcoe: convert to use BUS_ATTR_WO

We are trying to get rid of BUS_ATTR() and the usage of that in the fcoe
driver can be trivially converted to use BUS_ATTR_WO(), so use that
instead.

Cc: Johannes Thumshirn <jth@...nel.org>
Cc: "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
v2: Made simpler with wrapper functions to call the "real" show/store
    functions, thanks to James for the idea.
    Removed the EXPORT_SYMBOL() removal line, that belongs in a separate
    patch

 drivers/scsi/fcoe/fcoe_sysfs.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index 5c8310bade61..c3dcbdc3aa64 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -671,8 +671,19 @@ static const struct device_type fcoe_fcf_device_type = {
 	.release = fcoe_fcf_device_release,
 };
 
-static BUS_ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store);
-static BUS_ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store);
+static ssize_t ctlr_create_store(struct bus_type *bus, const char *buf,
+				 size_t count)
+{
+	return fcoe_ctlr_create_store(bus, buf, count);
+}
+static BUS_ATTR_WO(ctlr_create);
+
+static ssize_t ctlr_destroy_store(struct bus_type *bus, const char *buf,
+				  size_t count)
+{
+	return fcoe_ctlr_destroy_store(bus, buf, count);
+}
+static BUS_ATTR_WO(ctlr_destroy);
 
 static struct attribute *fcoe_bus_attrs[] = {
 	&bus_attr_ctlr_create.attr,
-- 
2.20.1