[PATCH v3 02/16] switchtec: export class symbol for use in upper layer driver

From: Logan Gunthorpe <logang@deltatee.com>
To: linux-ntb@googlegroups.com, linux-pci@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Jon Mason <jdmason@kudzu.us>, Dave Jiang <dave.jiang@intel.com>,
	Allen Hubbe <Allen.Hubbe@emc.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kurt Schwemmer <kurt.schwemmer@microsemi.com>,
	Stephen Bates <sbates@raithlin.com>,
	Serge Semin <fancer.lancer@gmail.com>,
	Logan Gunthorpe <logang@deltatee.com>
Subject: [PATCH v3 02/16] switchtec: export class symbol for use in upper layer driver
Date: Tue, 25 Jul 2017 14:57:39 -0600	[thread overview]
Message-ID: <20170725205753.4735-3-logang@deltatee.com> (raw)
In-Reply-To: <20170725205753.4735-1-logang@deltatee.com>

We export the class pointer symbol and add an extern define in the
Switchtec header file.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/switch/switchtec.c | 4 +++-
 include/linux/switchtec.h      | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 5b75d3008ff8..39c9218d733f 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -33,9 +33,11 @@ module_param(max_devices, int, 0644);
 MODULE_PARM_DESC(max_devices, "max number of switchtec device instances");
 
 static dev_t switchtec_devt;
-static struct class *switchtec_class;
 static DEFINE_IDA(switchtec_minor_ida);
 
+struct class *switchtec_class;
+EXPORT_SYMBOL_GPL(switchtec_class);
+
 enum mrpc_state {
 	MRPC_IDLE = 0,
 	MRPC_QUEUED,
diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h
index 1cbd0e63b0ab..18e388101855 100644
--- a/include/linux/switchtec.h
+++ b/include/linux/switchtec.h
@@ -276,4 +276,6 @@ static inline struct switchtec_dev *to_stdev(struct device *dev)
 	return container_of(dev, struct switchtec_dev, dev);
 }
 
+extern struct class *switchtec_class;
+
 #endif
-- 
2.11.0

