[v4,1/2] radeon: fix coding issues reported from sparse

Commit Message

Chen Li June 4, 2021, 8:40 a.m. UTC

Also fix some coding issues reported from sparse.

Signed-off-by: Chen Li <[e-mail]>
Acked-by: Christian König <[e-mail]>
---
 drivers/gpu/drm/radeon/radeon_uvd.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

Patch

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]);