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
---
new in v2 --- drivers/hid/bpf/hid_bpf_dispatch.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c index e1a650f4a626..275f2057c48d 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 = { @@ -566,11 +571,11 @@ static const struct btf_kfunc_id_set hid_bpf_fmodret_set = { /* for syscall HID-BPF */ BTF_KFUNCS_START(hid_bpf_syscall_kfunc_ids) BTF_ID_FLAGS(func, hid_bpf_attach_prog) -BTF_ID_FLAGS(func, hid_bpf_allocate_context, KF_ACQUIRE | KF_RET_NULL) -BTF_ID_FLAGS(func, hid_bpf_release_context, KF_RELEASE) -BTF_ID_FLAGS(func, hid_bpf_hw_request) -BTF_ID_FLAGS(func, hid_bpf_hw_output_report) -BTF_ID_FLAGS(func, hid_bpf_input_report) +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_syscall_kfunc_ids)
static const struct btf_kfunc_id_set hid_bpf_syscall_kfunc_set = {