[PATCH 4.19] Revert "drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()"

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This reverts commit 673bdb4200c092692f83b5f7ba3df57021d52d29.

The origin mainline patch fix a buffer overflow issue in
amdgpu_debugfs_gprwave_read(), but it has not been introduced in kernel
6.1 and older kernels. This patch add a check in a wrong function in the
same file.

Signed-off-by: Zhang Zekun <zhangzekun11@xxxxxxxxxx>
---
 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 4776196b2021..98bd8a23e5b0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -394,7 +394,7 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
 	if (!adev->smc_rreg)
 		return -EOPNOTSUPP;
 
-	if (size > 4096 || size & 0x3 || *pos & 0x3)
+	if (size & 0x3 || *pos & 0x3)
 		return -EINVAL;
 
 	while (size) {
-- 
2.17.1





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