linux-kernel - [PATCH v3] drm/hisilicon: Fixed the warning: Assignment of 0/1 to bool variable

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Message-ID: <1595940907-17874-1-git-send-email-tiantao6@hisilicon.com>
Date:   Tue, 28 Jul 2020 20:55:07 +0800
From:   Tian Tao <tiantao6@...ilicon.com>
To:     <airlied@...ux.ie>, <daniel@...ll.ch>, <tzimmermann@...e.de>,
        <kraxel@...hat.com>, <alexander.deucher@....com>,
        <tglx@...utronix.de>, <dri-devel@...ts.freedesktop.org>,
        <xinliang.liu@...aro.org>, <linux-kernel@...r.kernel.org>
CC:     <linuxarm@...wei.com>
Subject: [PATCH v3] drm/hisilicon: Fixed the warning: Assignment of 0/1 to bool variable

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 <tiantao6@...ilicon.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