fixed the following warning:
hibmc_drm_drv.c:296:1-18:WARNING: Assignment of 0/1 to bool variable.
hibmc_drm_drv.c:301:2-19: WARNING: Assignment of 0/1 to bool variable.

v2:
using the pci_dev.msi_enabled instead of priv->msi_enabled.

v3:
just call pci_enable_msi() and pci_disable_msi(), it's no need to
set dev->pdev->msi_enabled again.

Signed-off-by: Tian Tao <tiant...@hisilicon.com>
---
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 5 +----
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 1 -
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c 
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 249c298..b8d839a 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -254,9 +254,8 @@ static int hibmc_unload(struct drm_device *dev)
 
        if (dev->irq_enabled)
                drm_irq_uninstall(dev);
-       if (priv->msi_enabled)
-               pci_disable_msi(dev->pdev);
 
+       pci_disable_msi(dev->pdev);
        hibmc_kms_fini(priv);
        hibmc_mm_fini(priv);
        dev->dev_private = NULL;
@@ -294,12 +293,10 @@ static int hibmc_load(struct drm_device *dev)
                goto err;
        }
 
-       priv->msi_enabled = 0;
        ret = pci_enable_msi(dev->pdev);
        if (ret) {
                DRM_WARN("enabling MSI failed: %d\n", ret);
        } else {
-               priv->msi_enabled = 1;
                ret = drm_irq_install(dev, dev->pdev->irq);
                if (ret)
                        DRM_WARN("install irq failed: %d\n", ret);
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h 
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index 6097687..a683763 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -25,7 +25,6 @@ struct hibmc_drm_private {
        void __iomem   *fb_map;
        unsigned long  fb_base;
        unsigned long  fb_size;
-       bool msi_enabled;
 
        /* drm */
        struct drm_device  *dev;
-- 
2.7.4

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