| Message ID | 20240608-hid_bpf_struct_ops-v3-16-6ac6ade58329@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | HID: convert HID-BPF into using bpf_struct_ops | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch, async |
diff --git a/drivers/hid/bpf/hid_bpf_struct_ops.c b/drivers/hid/bpf/hid_bpf_struct_ops.c index b14eccb121e0..e28cca78e1f5 100644 --- a/drivers/hid/bpf/hid_bpf_struct_ops.c +++ b/drivers/hid/bpf/hid_bpf_struct_ops.c @@ -74,6 +74,9 @@ static int hid_bpf_ops_btf_struct_access(struct bpf_verifier_log *log, const struct hid_bpf_offset_write_range write_ranges[] = { WRITE_RANGE(hid_bpf_ctx, retval, false), + WRITE_RANGE(hid_device, name, true), + WRITE_RANGE(hid_device, uniq, true), + WRITE_RANGE(hid_device, phys, true), }; #undef WRITE_RANGE const struct btf_type *state = NULL; diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h index 1b4cc1b2c31d..65d7e0acc8c2 100644 --- a/include/linux/hid_bpf.h +++ b/include/linux/hid_bpf.h @@ -43,7 +43,7 @@ struct hid_device; * ``hid`` and ``allocated_size`` are read-only, ``size`` and ``retval`` are read-write. */ struct hid_bpf_ctx { - const struct hid_device *hid; + struct hid_device *hid; __u32 allocated_size; union { __s32 retval;
It is useful to change the name, the phys and/or the uniq of a struct hid_device during .rdesc_fixup(). For example, hid-uclogic.ko changes the uniq to store the firmware version to differentiate between 2 devices sharing the same PID. In the same way, changing the device name is useful when the device export 3 nodes, all with the same name. Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> --- changes in v3: - amend for new WRITE_RANGE API new in v2 --- drivers/hid/bpf/hid_bpf_struct_ops.c | 3 +++ include/linux/hid_bpf.h | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-)