[PATCH v3 1/2] radeon: fix coding issues reported from sparse

From: Chen Li <chenli@uniontech.com>
To: "Christian König" <ckoenig.leichtzumerken@gmail.com>
Cc: "Alex Deucher" <alexander.deucher@amd.com>,
	amd-gfx@lists.freedesktop.org, "Chen Li" <chenli@uniontech.com>,
	dri-devel@lists.freedesktop.org,
	"Christian König" <christian.koenig@amd.com>
Subject: [PATCH v3 1/2] radeon: fix coding issues reported from sparse
Date: Fri, 04 Jun 2021 15:52:19 +0800	[thread overview]
Message-ID: <878s3qcbik.wl-chenli@uniontech.com> (raw)
In-Reply-To: <0689a006-a0a2-698a-12d8-cb11156e469a@gmail.com>


Also fix some coding issues reported from sparse.

Signed-off-by: Chen Li <chenli@uniontech.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/radeon/radeon_uvd.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index dfa9fdbe98da..85a1f2c31749 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -152,9 +152,11 @@ int radeon_uvd_init(struct radeon_device *rdev)
 
 			rdev->uvd.fw_header_present = true;
 
-			family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
-			version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
-			version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
+			family_id = (__force u32)(hdr->ucode_version) & 0xff;
+			version_major = (le32_to_cpu((__force __le32)(hdr->ucode_version))
+							 >> 24) & 0xff;
+			version_minor = (le32_to_cpu((__force __le32)(hdr->ucode_version))
+							 >> 8) & 0xff;
 			DRM_INFO("Found UVD firmware Version: %u.%u Family ID: %u\n",
 				 version_major, version_minor, family_id);
 
@@ -791,17 +793,17 @@ int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
 		return r;
 
 	/* stitch together an UVD create msg */
-	writel(cpu_to_le32(0x00000de4), &msg[0]);
+	writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
 	writel(0x0, (void __iomem *)&msg[1]);
-	writel(cpu_to_le32(handle), &msg[2]);
+	writel((__force u32)cpu_to_le32(handle), &msg[2]);
 	writel(0x0, &msg[3]);
 	writel(0x0, &msg[4]);
 	writel(0x0, &msg[5]);
 	writel(0x0, &msg[6]);
-	writel(cpu_to_le32(0x00000780), &msg[7]);
-	writel(cpu_to_le32(0x00000440), &msg[8]);
+	writel((__force u32)cpu_to_le32(0x00000780), &msg[7]);
+	writel((__force u32)cpu_to_le32(0x00000440), &msg[8]);
 	writel(0x0, &msg[9]);
-	writel(cpu_to_le32(0x01b37000), &msg[10]);
+	writel((__force u32)cpu_to_le32(0x01b37000), &msg[10]);
 	for (i = 11; i < 1024; ++i)
 		writel(0x0, &msg[i]);
 
@@ -827,9 +829,9 @@ int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
 		return r;
 
 	/* stitch together an UVD destroy msg */
-	writel(cpu_to_le32(0x00000de4), &msg[0]);
-	writel(cpu_to_le32(0x00000002), &msg[1]);
-	writel(cpu_to_le32(handle), &msg[2]);
+	writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
+	writel((__force u32)cpu_to_le32(0x00000002), &msg[1]);
+	writel((__force u32)cpu_to_le32(handle), &msg[2]);
 	writel(0x0, &msg[3]);
 	for (i = 4; i < 1024; ++i)
 		writel(0x0, &msg[i]);
-- 
2.31.1



