ipa: raspberrypi: Replace void cast with [[maybe_unused]]

The standard way in C++17 to specify that a function or function
argument may be unused it to specify the [[maybe_unused]] attribute.
Replace manual void casts to silence compiler warnings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 6 insertions, 10 deletions

diff --git a/src/ipa/raspberrypi/controller/algorithm.cpp b/src/ipa/raspberrypi/controller/algorithm.cpp
index 55cb2012..1b80e296 100644
--- a/src/ipa/raspberrypi/controller/algorithm.cpp
+++ b/src/ipa/raspberrypi/controller/algorithm.cpp
@@ -9,28 +9,24 @@
 
 using namespace RPi;
 
-void Algorithm::Read(boost::property_tree::ptree const &params)
+void Algorithm::Read([[maybe_unused]] boost::property_tree::ptree const &params)
 {
-	(void)params;
 }
 
 void Algorithm::Initialise() {}
 
-void Algorithm::SwitchMode(CameraMode const &camera_mode, Metadata *metadata)
+void Algorithm::SwitchMode([[maybe_unused]] CameraMode const &camera_mode,
+			   [[maybe_unused]] Metadata *metadata)
 {
-	(void)camera_mode;
-	(void)metadata;
 }
 
-void Algorithm::Prepare(Metadata *image_metadata)
+void Algorithm::Prepare([[maybe_unused]] Metadata *image_metadata)
 {
-	(void)image_metadata;
 }
 
-void Algorithm::Process(StatisticsPtr &stats, Metadata *image_metadata)
+void Algorithm::Process([[maybe_unused]] StatisticsPtr &stats,
+			[[maybe_unused]] Metadata *image_metadata)
 {
-	(void)stats;
-	(void)image_metadata;
 }
 
 // For registering algorithms with the system: