fpga: dfl: Use struct_size() in kzalloc()

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
function dfl_feature_platform_data_size().

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index 2f5d3052e36e..044b0e88e5a8 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -299,12 +299,6 @@ struct dfl_feature_ops {
 #define DFL_FPGA_FEATURE_DEV_FME		"dfl-fme"
 #define DFL_FPGA_FEATURE_DEV_PORT		"dfl-port"
 
-static inline int dfl_feature_platform_data_size(const int num)
-{
-	return sizeof(struct dfl_feature_platform_data) +
-		num * sizeof(struct dfl_feature);
-}
-
 void dfl_fpga_dev_feature_uinit(struct platform_device *pdev);
 int dfl_fpga_dev_feature_init(struct platform_device *pdev,
 			      struct dfl_feature_driver *feature_drvs);