[PATCH] media: venus: Annotate flex arrays with __counted_by()

From: Mohammed EL Kadiri

Date: Mon May 11 2026 - 09:16:07 EST


Add __counted_by() annotations to flexible array members:

- hfi_capabilities::data, counted by num_capabilities
- hfi_profile_level_supported::profile_level, counted by profile_count
- hfi_resource_ocmem_requirement_info::requirements, counted by num_entries

This improves run-time bounds checking via CONFIG_UBSAN_BOUNDS and
compile-time object size resolution via __builtin_dynamic_object_size().

Signed-off-by: Mohammed EL Kadiri <med08elkadiri@xxxxxxxxx>
---
drivers/media/platform/qcom/venus/hfi_helper.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/hfi_helper.h b/drivers/media/platform/qcom/venus/hfi_helper.h
index f44059f19505..e96d458c52fa 100644
--- a/drivers/media/platform/qcom/venus/hfi_helper.h
+++ b/drivers/media/platform/qcom/venus/hfi_helper.h
@@ -616,7 +616,7 @@ struct hfi_capability {

struct hfi_capabilities {
u32 num_capabilities;
- struct hfi_capability data[];
+ struct hfi_capability data[] __counted_by(num_capabilities);
};

#define HFI_DEBUG_MSG_LOW 0x01
@@ -802,7 +802,7 @@ struct hfi_profile_level {

struct hfi_profile_level_supported {
u32 profile_count;
- struct hfi_profile_level profile_level[];
+ struct hfi_profile_level profile_level[] __counted_by(profile_count);
};

struct hfi_quality_vs_speed {
@@ -1085,7 +1085,7 @@ struct hfi_resource_ocmem_requirement {

struct hfi_resource_ocmem_requirement_info {
u32 num_entries;
- struct hfi_resource_ocmem_requirement requirements[];
+ struct hfi_resource_ocmem_requirement requirements[] __counted_by(num_entries);
};

struct hfi_property_sys_image_version_info_type {
--
2.43.0