[PATCH v2] drm/hisilicon: fix build error without fbdev emulation

From: Arnd Bergmann
Date: Tue Jul 25 2017 - 14:06:51 EST


We cannot reference priv->fbdev outside of the #ifdef:

drivers/net/virtio_net.c:1881:12: error: 'virtnet_restore_up' defined but not used [-Werror=unused-function]
static int virtnet_restore_up(struct virtio_device *vdev)
drivers/net/virtio_net.c:1859:13: error: 'virtnet_freeze_down' defined but not used [-Werror=unused-function]
static void virtnet_freeze_down(struct virtio_device *vdev)

As the #ifdef is a bit annoying here, this removes it entirely
and uses an IS_ENABLED() check in it place where needed.

Fixes: b4dd9f1ffaba ("drm/hisilicon: Remove custom FB helper deferred setup")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 19 ++++++++-----------
drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h | 2 --
2 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index 1178341c3858..5d2dfe92f62c 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -34,12 +34,11 @@ static int kirin_drm_kms_cleanup(struct drm_device *dev)
{
struct kirin_drm_private *priv = dev->dev_private;

-#ifdef CONFIG_DRM_FBDEV_EMULATION
- if (priv->fbdev) {
+ if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) && priv->fbdev) {
drm_fbdev_cma_fini(priv->fbdev);
priv->fbdev = NULL;
}
-#endif
+
drm_kms_helper_poll_fini(dev);
dc_ops->cleanup(to_platform_device(dev->dev));
drm_mode_config_cleanup(dev);
@@ -49,20 +48,17 @@ static int kirin_drm_kms_cleanup(struct drm_device *dev)
return 0;
}

-#ifdef CONFIG_DRM_FBDEV_EMULATION
static void kirin_fbdev_output_poll_changed(struct drm_device *dev)
{
struct kirin_drm_private *priv = dev->dev_private;

drm_fbdev_cma_hotplug_event(priv->fbdev);
}
-#endif

static const struct drm_mode_config_funcs kirin_drm_mode_config_funcs = {
.fb_create = drm_fb_cma_create,
-#ifdef CONFIG_DRM_FBDEV_EMULATION
- .output_poll_changed = kirin_fbdev_output_poll_changed,
-#endif
+ .output_poll_changed = IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) ?
+ kirin_fbdev_output_poll_changed : NULL,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
};
@@ -121,14 +117,15 @@ static int kirin_drm_kms_init(struct drm_device *dev)
/* init kms poll for handling hpd */
drm_kms_helper_poll_init(dev);

- priv->fbdev = drm_fbdev_cma_init(dev, 32,
- dev->mode_config.num_connector);
+ if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION))
+ priv->fbdev = drm_fbdev_cma_init(dev, 32,
+ dev->mode_config.num_connector);
+
if (IS_ERR(priv->fbdev)) {
DRM_ERROR("failed to initialize fbdev.\n");
ret = PTR_ERR(priv->fbdev);
goto err_cleanup_poll;
}
-
return 0;

err_cleanup_poll:
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
index 7f60c64915d9..56cb62df065c 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
@@ -20,9 +20,7 @@ struct kirin_dc_ops {
};

struct kirin_drm_private {
-#ifdef CONFIG_DRM_FBDEV_EMULATION
struct drm_fbdev_cma *fbdev;
-#endif
};

extern const struct kirin_dc_ops ade_dc_ops;
--
2.9.0