linux-kernel - [PATCH] drm/hisilicon: fix build error without fbdev emulation

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Date:   Tue, 25 Jul 2017 17:33:25 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Xinliang Liu <z.liuxinliang@...ilicon.com>,
        Rongrong Zou <zourongrong@...il.com>,
        David Airlie <airlied@...ux.ie>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Xinwei Kong <kong.kongxinwei@...ilicon.com>,
        Chen Feng <puck.chen@...ilicon.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Sean Paul <seanpaul@...omium.org>, Jyri Sarha <jsarha@...com>,
        Gabriel Krisman Bertazi <krisman@...labora.co.uk>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Rob Herring <robh@...nel.org>,
        Thierry Reding <treding@...dia.com>,
        Tom Gundersen <teg@...m.no>, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/hisilicon: fix build error without fbdev emulation

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)

Since the code is moved into the main probe function now, this
adds another #ifdef.

Fixes: b4dd9f1ffaba ("drm/hisilicon: Remove custom FB helper deferred setup")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index 1178341c3858..d48102d1a7a4 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -121,6 +121,7 @@ static int kirin_drm_kms_init(struct drm_device *dev)
 	/* init kms poll for handling hpd */
 	drm_kms_helper_poll_init(dev);
 
+#ifdef CONFIG_DRM_FBDEV_EMULATION
 	priv->fbdev = drm_fbdev_cma_init(dev, 32,
 					 dev->mode_config.num_connector);
 	if (IS_ERR(priv->fbdev)) {
@@ -128,11 +129,13 @@ static int kirin_drm_kms_init(struct drm_device *dev)
 		ret = PTR_ERR(priv->fbdev);
 		goto err_cleanup_poll;
 	}
-
+#endif
 	return 0;
 
+#ifdef CONFIG_DRM_FBDEV_EMULATION
 err_cleanup_poll:
 	drm_kms_helper_poll_fini(dev);
+#endif
 err_unbind_all:
 	component_unbind_all(dev->dev, dev);
 err_dc_cleanup:
-- 
2.9.0