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Diffstat (limited to 'include/linux/hid_bpf.h')
-rw-r--r--include/linux/hid_bpf.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h
index eec2592dec12..99a3edb6cf07 100644
--- a/include/linux/hid_bpf.h
+++ b/include/linux/hid_bpf.h
@@ -152,6 +152,11 @@ static inline int hid_bpf_connect_device(struct hid_device *hdev) { return 0; }
static inline void hid_bpf_disconnect_device(struct hid_device *hdev) {}
static inline void hid_bpf_destroy_device(struct hid_device *hid) {}
static inline void hid_bpf_device_init(struct hid_device *hid) {}
+/*
+ * This specialized allocator has to be a macro for its allocations to be
+ * accounted separately (to have a separate alloc_tag). The typecast is
+ * intentional to enforce typesafety.
+ */
#define call_hid_bpf_rdesc_fixup(_hdev, _rdesc, _size) \
((u8 *)kmemdup(_rdesc, *(_size), GFP_KERNEL))