Hi, So this patch series aims at solving both [0] and [1]. The first one is bpf related and concerns the ALLOW_ERROR_INJECTION API. It is considered as a hack to begin with, so introduce a proper kernel API to declare when a BPF hook can have its return value changed. The second one is related to the fact that DYNAMIC_FTRACE_WITH_DIRECT_CALLS is currently not enabled on arm64, and that means that the current HID-BPF implementation doesn't work there for now. The first patch actually touches the bpf core code, but it would be easier if we could merge it through the hid tree in the for-6.2/hid-bpf branch once we get the proper acks. Cheers, Benjamin [0] https://lore.kernel.org/all/20221121104403.1545f9b5@xxxxxxxxxxxxxxxxxx/ [1] https://lore.kernel.org/r/CABRcYmKyRchQhabi1Vd9RcMQFCcb=EtWyEbFDFRTc-L-U8WhgA@xxxxxxxxxxxxxx Benjamin Tissoires (4): bpf: do not rely on ALLOW_ERROR_INJECTION for fmod_ret HID: bpf: do not rely on ALLOW_ERROR_INJECTION HID: bpf: enforce HID_BPF dependencies selftests: hid: ensures we have the proper requirements in config drivers/hid/bpf/Kconfig | 3 ++- drivers/hid/bpf/hid_bpf_dispatch.c | 20 ++++++++++++-- drivers/hid/bpf/hid_bpf_jmp_table.c | 1 - include/linux/btf.h | 3 +++ kernel/bpf/btf.c | 41 +++++++++++++++++++++++++++++ kernel/bpf/verifier.c | 17 ++++++++++-- net/bpf/test_run.c | 14 +++++++--- tools/testing/selftests/hid/config | 1 + 8 files changed, 91 insertions(+), 9 deletions(-) -- 2.38.1
