diff --git a/src/develop/blend.c b/src/develop/blend.c
index 716edeb09844..8c12f0ea8167 100644
--- a/src/develop/blend.c
+++ b/src/develop/blend.c
@@ -504,9 +504,7 @@ void dt_develop_blend_process(dt_iop_module_t *self,
                               const dt_iop_roi_t *const roi_in,
                               const dt_iop_roi_t *const roi_out)
 {
-  if(piece->pipe->bypass_blendif
-     && self->dev->gui_attached
-     && (self == self->dev->gui_module))
+  if(piece->pipe->bypass_blendif && dt_iop_has_focus(self))
     return;
 
   const dt_develop_blend_params_t *const d = piece->blendop_data;
@@ -545,10 +543,7 @@ void dt_develop_blend_process(dt_iop_module_t *self,
     return;
   }
 
-  const gboolean valid_request =
-      self->dev->gui_attached
-      && (self == self->dev->gui_module)
-      && (piece->pipe == self->dev->full.pipe);
+  const gboolean valid_request = dt_iop_has_focus(self) && (piece->pipe == self->dev->full.pipe);
 
   // does user want us to display a specific channel?
   const dt_dev_pixelpipe_display_mask_t request_mask_display =
@@ -934,9 +929,7 @@ gboolean dt_develop_blend_process_cl(dt_iop_module_t *self,
                                      const dt_iop_roi_t *roi_in,
                                      const dt_iop_roi_t *roi_out)
 {
-  if(piece->pipe->bypass_blendif
-      && self->dev->gui_attached
-      && (self == self->dev->gui_module))
+  if(piece->pipe->bypass_blendif && dt_iop_has_focus(self))
     return TRUE;
 
   dt_develop_blend_params_t *const d = piece->blendop_data;
@@ -971,10 +964,7 @@ gboolean dt_develop_blend_process_cl(dt_iop_module_t *self,
   // only non-zero if mask_display was set by an _earlier_ module
   const dt_dev_pixelpipe_display_mask_t mask_display = piece->pipe->mask_display;
 
-  const gboolean valid_request =
-      self->dev->gui_attached
-      && (self == self->dev->gui_module)
-      && (piece->pipe == self->dev->full.pipe);
+  const gboolean valid_request = dt_iop_has_focus(self) && (piece->pipe == self->dev->full.pipe);
 
   // does user want us to display a specific channel?
   const dt_dev_pixelpipe_display_mask_t request_mask_display =
diff --git a/src/iop/colorzones.c b/src/iop/colorzones.c
index 7f78185af822..64c0070df7c9 100644
--- a/src/iop/colorzones.c
+++ b/src/iop/colorzones.c
@@ -585,8 +585,9 @@ void process(dt_iop_module_t *self,
   // display selection if requested
   if((piece->pipe->type & DT_DEV_PIXELPIPE_FULL)
      && g
-     && g->display_mask && self->dev->gui_attached
-     && (self == self->dev->gui_module) && (piece->pipe == self->dev->full.pipe))
+     && g->display_mask
+     && dt_iop_has_focus(self)
+     && (piece->pipe == self->dev->full.pipe))
     process_display(self, piece, ivoid, ovoid, roi_in, roi_out);
   else if(d->mode == DT_IOP_COLORZONES_MODE_SMOOTH)
     process_v3(self, piece, ivoid, ovoid, roi_in, roi_out);
@@ -604,7 +605,7 @@ int process_cl(dt_iop_module_t *self,
   dt_iop_colorzones_data_t *d = piece->data;
   dt_iop_colorzones_global_data_t *gd = self->global_data;
   cl_mem dev_L, dev_a, dev_b = NULL;
-  cl_int err = DT_OPENCL_DEFAULT_ERROR;
+  cl_int err = CL_MEM_OBJECT_ALLOCATION_FAILURE;
 
   const int devid = piece->pipe->devid;
   const int width = roi_in->width;
diff --git a/src/iop/demosaicing/rcd.c b/src/iop/demosaicing/rcd.c
index 15bf9998ca6b..9ab838c10485 100644
--- a/src/iop/demosaicing/rcd.c
+++ b/src/iop/demosaicing/rcd.c
@@ -582,8 +582,6 @@ static cl_int process_rcd_cl(dt_iop_module_t *self,
     const int width = roi_in->width;
     const int height = roi_in->height;
 
-    err = CL_MEM_OBJECT_ALLOCATION_FAILURE;
-
     dev_tmp = dt_opencl_alloc_device(devid, roi_in->width, roi_in->height, sizeof(float) * 4);
     if(dev_tmp == NULL) goto error;
 
diff --git a/src/iop/retouch.c b/src/iop/retouch.c
index a2a5463982d4..8d408b906bb3 100644
--- a/src/iop/retouch.c
+++ b/src/iop/retouch.c
@@ -3870,9 +3870,7 @@ void process(dt_iop_module_t *self,
   retouch_user_data_t usr_data = { 0 };
   dwt_params_t *dwt_p = NULL;
 
-  const int gui_active = (self->dev) ? (self == self->dev->gui_module) : 0;
-  const gboolean display_wavelet_scale =
-    (g && gui_active) ? g->display_wavelet_scale : FALSE;
+  const gboolean display_wavelet_scale = g && dt_iop_has_focus(self) ? g->display_wavelet_scale : FALSE;
 
   // we will do all the clone, heal, etc on the input image,
   // this way the source for one algorithm can be the destination from a previous one
@@ -3891,8 +3889,7 @@ void process(dt_iop_module_t *self,
   usr_data.mask_display = FALSE;
   usr_data.suppress_mask = (g
                             && g->suppress_mask
-                            && self->dev->gui_attached
-                            && (self == self->dev->gui_module)
+                            && dt_iop_has_focus(self)
                             && (piece->pipe == self->dev->full.pipe));
   usr_data.display_scale = p->curr_scale;
 
@@ -3908,8 +3905,8 @@ void process(dt_iop_module_t *self,
 
   // check if this module should expose mask.
   if((piece->pipe->type & DT_DEV_PIXELPIPE_FULL) && g
-     && (g->mask_display || display_wavelet_scale) && self->dev->gui_attached
-     && (self == self->dev->gui_module) && (piece->pipe == self->dev->full.pipe))
+     && (g->mask_display || display_wavelet_scale)
+     && dt_iop_has_focus(self) && (piece->pipe == self->dev->full.pipe))
   {
     for(size_t j = 0; j < (size_t)roi_rt->width * roi_rt->height * 4; j += 4)
       in_retouch[j + 3] = 0.f;
@@ -3923,7 +3920,7 @@ void process(dt_iop_module_t *self,
   if(piece->pipe->type & DT_DEV_PIXELPIPE_FULL)
   {
     // check if the image support this number of scales
-    if(gui_active)
+    if(dt_iop_has_focus(self))
     {
       const int max_scales = dwt_get_max_scale(dwt_p);
       if(dwt_p->scales > max_scales)
@@ -4819,9 +4816,7 @@ int process_cl(dt_iop_module_t *self,
   retouch_user_data_t usr_data = { 0 };
   dwt_params_cl_t *dwt_p = NULL;
 
-  const int gui_active = (self->dev) ? (self == self->dev->gui_module) : 0;
-  const gboolean display_wavelet_scale =
-    (g && gui_active) ? g->display_wavelet_scale : FALSE;
+  const gboolean display_wavelet_scale = g && dt_iop_has_focus(self) ? g->display_wavelet_scale : FALSE;
 
   // we will do all the clone, heal, etc on the input image, this way
   // the source for one algorithm can be the destination from a
@@ -4851,8 +4846,7 @@ int process_cl(dt_iop_module_t *self,
   usr_data.mask_display = FALSE;
   usr_data.suppress_mask = (g
                             && g->suppress_mask
-                            && self->dev->gui_attached
-                            && (self == self->dev->gui_module)
+                            && dt_iop_has_focus(self)
                             && (piece->pipe == self->dev->full.pipe));
   usr_data.display_scale = p->curr_scale;
 
@@ -4873,8 +4867,7 @@ int process_cl(dt_iop_module_t *self,
   // check if this module should expose mask.
   if((piece->pipe->type & DT_DEV_PIXELPIPE_FULL)
      && g && g->mask_display
-     && self->dev->gui_attached
-     && (self == self->dev->gui_module)
+     && dt_iop_has_focus(self)
      && (piece->pipe == self->dev->full.pipe))
   {
     const int kernel = gd->kernel_retouch_clear_alpha;
@@ -4893,7 +4886,7 @@ int process_cl(dt_iop_module_t *self,
   if(piece->pipe->type & DT_DEV_PIXELPIPE_FULL)
   {
     // check if the image support this number of scales
-    if(gui_active)
+    if(dt_iop_has_focus(self))
     {
       const int max_scales = dwt_get_max_scale_cl(dwt_p);
       if(dwt_p->scales > max_scales)