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-rw-r--r--include/linux/hid.h21
-rw-r--r--include/linux/hid_bpf.h11
2 files changed, 15 insertions, 17 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 121d5b8bc867..d11e9c9a5f15 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -359,6 +359,7 @@ struct hid_item {
* | @HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP:
* | @HID_QUIRK_HAVE_SPECIAL_DRIVER:
* | @HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE:
+ * | @HID_QUIRK_IGNORE_SPECIAL_DRIVER
* | @HID_QUIRK_FULLSPEED_INTERVAL:
* | @HID_QUIRK_NO_INIT_REPORTS:
* | @HID_QUIRK_NO_IGNORE:
@@ -384,6 +385,7 @@ struct hid_item {
#define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19)
#define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20)
#define HID_QUIRK_NOINVERT BIT(21)
+#define HID_QUIRK_IGNORE_SPECIAL_DRIVER BIT(22)
#define HID_QUIRK_FULLSPEED_INTERVAL BIT(28)
#define HID_QUIRK_NO_INIT_REPORTS BIT(29)
#define HID_QUIRK_NO_IGNORE BIT(30)
@@ -599,15 +601,17 @@ enum hid_battery_status {
struct hid_driver;
struct hid_ll_driver;
-struct hid_device { /* device report descriptor */
- const __u8 *dev_rdesc;
- unsigned dev_rsize;
- const __u8 *rdesc;
- unsigned rsize;
+struct hid_device {
+ const __u8 *dev_rdesc; /* device report descriptor */
+ const __u8 *bpf_rdesc; /* bpf modified report descriptor, if any */
+ const __u8 *rdesc; /* currently used report descriptor */
+ unsigned int dev_rsize;
+ unsigned int bpf_rsize;
+ unsigned int rsize;
+ unsigned int collection_size; /* Number of allocated hid_collections */
struct hid_collection *collection; /* List of HID collections */
- unsigned collection_size; /* Number of allocated hid_collections */
- unsigned maxcollection; /* Number of parsed collections */
- unsigned maxapplication; /* Number of applications */
+ unsigned int maxcollection; /* Number of parsed collections */
+ unsigned int maxapplication; /* Number of applications */
__u16 bus; /* BUS ID */
__u16 group; /* Report group */
__u32 vendor; /* Vendor ID */
@@ -974,7 +978,6 @@ const struct hid_device_id *hid_match_device(struct hid_device *hdev,
struct hid_driver *hdrv);
bool hid_compare_device_paths(struct hid_device *hdev_a,
struct hid_device *hdev_b, char separator);
-s32 hid_snto32(__u32 value, unsigned n);
__u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
unsigned offset, unsigned n);
diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h
index 6a47223e6460..a6876ab29004 100644
--- a/include/linux/hid_bpf.h
+++ b/include/linux/hid_bpf.h
@@ -212,7 +212,7 @@ int hid_bpf_connect_device(struct hid_device *hdev);
void hid_bpf_disconnect_device(struct hid_device *hdev);
void hid_bpf_destroy_device(struct hid_device *hid);
int hid_bpf_device_init(struct hid_device *hid);
-u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, const u8 *rdesc, unsigned int *size);
+const u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, const u8 *rdesc, unsigned int *size);
#else /* CONFIG_HID_BPF */
static inline u8 *dispatch_hid_bpf_device_event(struct hid_device *hid, enum hid_report_type type,
u8 *data, u32 *size, int interrupt,
@@ -228,13 +228,8 @@ 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 int hid_bpf_device_init(struct hid_device *hid) { return 0; }
-/*
- * 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))
+static inline const u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, const u8 *rdesc,
+ unsigned int *size) { return rdesc; }
#endif /* CONFIG_HID_BPF */