Asynchronous operation completion handler's lives are made easier if there
is a generic pointer that can store private data associated with the
operation. This patch adds a pointer field to struct gb_operation and
get/set methods to access that pointer.

Signed-off-by: Bryan O'Donoghue <pure.lo...@nexus-software.ie>
Cc: Johan Hovold <jo...@kernel.org>
Cc: Alex Elder <el...@kernel.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Mitch Tasman <tas...@leaflabs.com>
Cc: greybus-...@lists.linaro.org
Cc: de...@driverdev.osuosl.org
Cc: linux-ker...@vger.kernel.org
Reviewed-by: Johan Hovold <jo...@kernel.org>
---
 drivers/staging/greybus/operation.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/staging/greybus/operation.h 
b/drivers/staging/greybus/operation.h
index 7529f01..bfec1e9 100644
--- a/drivers/staging/greybus/operation.h
+++ b/drivers/staging/greybus/operation.h
@@ -105,6 +105,8 @@ struct gb_operation {
 
        int                     active;
        struct list_head        links;          /* connection->operations */
+
+       void                    *private;
 };
 
 static inline bool
@@ -206,6 +208,17 @@ static inline int gb_operation_unidirectional(struct 
gb_connection *connection,
                        request, request_size, GB_OPERATION_TIMEOUT_DEFAULT);
 }
 
+static inline void *gb_operation_get_data(struct gb_operation *operation)
+{
+       return operation->private;
+}
+
+static inline void gb_operation_set_data(struct gb_operation *operation,
+                                        void *data)
+{
+       operation->private = data;
+}
+
 int gb_operation_init(void);
 void gb_operation_exit(void);
 
-- 
2.7.4

_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

Reply via email to