setup_gpu() does not need an image

src/diffraction-gpu.c

@@ -342,7 +342,7 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
 
 
 /* Setup the OpenCL stuff, create buffers, load the structure factor table */
-struct gpu_context *setup_gpu(int no_sfac, struct image *image,
+struct gpu_context *setup_gpu(int no_sfac,
                               const double *intensities, unsigned char *flags,
                               const char *sym, int dev_num)
 {

src/diffraction-gpu.h

@@ -25,7 +25,7 @@ struct gpu_context;
 
 extern void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
                                 int na, int nb, int nc, UnitCell *ucell);
-extern struct gpu_context *setup_gpu(int no_sfac, struct image *image,
+extern struct gpu_context *setup_gpu(int no_sfac,
                                      const double *intensities,
                                      const unsigned char *flags,
                                      const char *sym, int dev_num);
@@ -40,7 +40,7 @@ static void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
 	ERROR("This copy of CrystFEL was not compiled with OpenCL support.\n");
 }
 
-static struct gpu_context *setup_gpu(int no_sfac, struct image *image,
+static struct gpu_context *setup_gpu(int no_sfac,
                                      const double *intensities,
                                      const unsigned char *flags,
                                      const char *sym, int dev_num)

src/pattern_sim.c

@@ -533,7 +533,7 @@ int main(int argc, char *argv[])
 
 		if ( config_gpu ) {
 			if ( gctx == NULL ) {
-				gctx = setup_gpu(config_nosfac, &image,
+				gctx = setup_gpu(config_nosfac,
 				                 intensities, flags, sym,
 				                 gpu_dev);
 			}