From: Logan Gunthorpe <logang@deltatee.com>
Date: Thu, 3 Aug 2017 18:19:41 +0000 (-0600)
Subject: NTB: switchtec: Export class symbol for use in upper layer driver
X-Git-Tag: v4.19~2120^2~15
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=302e994d3af7e4be8d0f789aa66422166ccd89c2;p=platform%2Fkernel%2Flinux-rpi.git

NTB: switchtec: Export class symbol for use in upper layer driver

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>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
---

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 5b75d30..39c9218 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 1cbd0e6..18e3881 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