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HID: bpf: allow to use bpf_timer_set_sleepable_cb() in tracing callbacks.

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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.

Link: https://lore.kernel.org/r/20240315-b4-hid-bpf-new-funcs-v4-7-079c282469d3@kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
This commit is contained in:
Benjamin Tissoires
2024-03-15 15:44:44 +01:00
parent 2c0e8ced7d
commit 685dadafbd
1 changed files with 5 additions and 0 deletions
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drivers/hid/bpf/hid_bpf_dispatch.c
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@@ -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 = {