[PATCH v2 02/16] switchtec: export class symbol for use in upper layer driver

Logan Gunthorpe
2017-07-18T16:04:30Z

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