diff mbox series

[v4,7/7] HID: bpf: allow to use bpf_timer_set_sleepable_cb() in tracing callbacks.

Message ID 20240315-b4-hid-bpf-new-funcs-v4-7-079c282469d3@kernel.org (mailing list archive)
State Handled Elsewhere
Delegated to: BPF
Headers show
Series Extend HID-BPF kfuncs (was: allow HID-BPF to do device IOs) | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch
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Commit Message

Benjamin Tissoires March 15, 2024, 2:44 p.m. UTC 
Export the sleepable kfuncs we have on HID-BPF in tracing bpf programs,
but with the condition of being used in a sleepable context.
This allows to use the bpf_timer when used in a sleepable context
through bpf_timer_set_sleepable_cb() and initiate work from a device event.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

---

no changes in v4

no changes in v3

new in v2
---
 drivers/hid/bpf/hid_bpf_dispatch.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c
index e1a650f4a626..e27c2ffb4f60 100644
--- a/drivers/hid/bpf/hid_bpf_dispatch.c
+++ b/drivers/hid/bpf/hid_bpf_dispatch.c
@@ -544,6 +544,11 @@  __bpf_kfunc_end_defs();
  */
 BTF_KFUNCS_START(hid_bpf_kfunc_ids)
 BTF_ID_FLAGS(func, hid_bpf_get_data, KF_RET_NULL)
+BTF_ID_FLAGS(func, hid_bpf_allocate_context, KF_ACQUIRE | KF_RET_NULL | KF_SLEEPABLE)
+BTF_ID_FLAGS(func, hid_bpf_release_context, KF_RELEASE | KF_SLEEPABLE)
+BTF_ID_FLAGS(func, hid_bpf_hw_request, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, hid_bpf_hw_output_report, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, hid_bpf_input_report, KF_SLEEPABLE)
 BTF_KFUNCS_END(hid_bpf_kfunc_ids)
 
 static const struct btf_kfunc_id_set hid_bpf_kfunc_set = {