[PATCH 3/4] drm/amdgpu: fix invadate operation for pg_flags

Jesse Zhang jesse.zhang at amd.com
Tue May 21 03:25:28 UTC 2024


adev->pg_flags >> 16 >> 16 is 0 regardless of the values of its operands.

Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index ac0ba8b8c1aa..da5bbf46eb27 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -935,7 +935,7 @@ static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf,
 	config[no_regs++] = adev->flags & AMD_IS_APU ? 1 : 0;
 
 	/* rev==5 PG/CG flag upper 32bit */
-	config[no_regs++] = upper_32_bits(adev->pg_flags);
+	config[no_regs++] = 0;
 	config[no_regs++] = upper_32_bits(adev->cg_flags);
 
 	while (size && (*pos < no_regs * 4)) {
-- 
2.25.1



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