Using DEFINE_DEBUGFS_ATTRIBUTE macro with debugfs_create_file_unsafe()
function in place of the debugfs_create_file() function will make the
file operation struct "reset" aware of the file's lifetime. Additional
details here: https://lists.archive.carbon60.com/linux/kernel/2369498
Issue reported by Coccinelle script:
scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
Signed-off-by: Deepak R Varma <mh12gx2...@gmail.com>
---
Please Note: This is a Outreachy project task patch.
drivers/gpu/drm/i915/gvt/debugfs.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/debugfs.c
b/drivers/gpu/drm/i915/gvt/debugfs.c
index 62e6a14ad58e..18adfa2d5f5b 100644
--- a/drivers/gpu/drm/i915/gvt/debugfs.c
+++ b/drivers/gpu/drm/i915/gvt/debugfs.c
@@ -147,9 +147,8 @@ vgpu_scan_nonprivbb_set(void *data, u64 val)
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(vgpu_scan_nonprivbb_fops,
- vgpu_scan_nonprivbb_get, vgpu_scan_nonprivbb_set,
- "0x%llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(vgpu_scan_nonprivbb_fops, vgpu_scan_nonprivbb_get,
+ vgpu_scan_nonprivbb_set, "0x%llx\n");
/**
* intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU
@@ -165,8 +164,8 @@ void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu)
debugfs_create_bool("active", 0444, vgpu->debugfs, &vgpu->active);
debugfs_create_file("mmio_diff", 0444, vgpu->debugfs, vgpu,
&vgpu_mmio_diff_fops);
- debugfs_create_file("scan_nonprivbb", 0644, vgpu->debugfs, vgpu,
- &vgpu_scan_nonprivbb_fops);
+ debugfs_create_file_unsafe("scan_nonprivbb", 0644, vgpu->debugfs, vgpu,
+ &vgpu_scan_nonprivbb_fops);
}
/**
--
2.25.1
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