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HID: bpf: enforce HID_BPF dependencies 

As mentioned in the link below, having JIT and BPF is not enough to
have fentry/fexit/fmod_ret APIs. This resolves the error that
happens on a system without tracing enabled when hid-bpf tries to
load itself.

Link: https://lore.kernel.org/r/CABRcYmKyRchQhabi1Vd9RcMQFCcb=EtWyEbFDFRTc-L-U8WhgA@mail.gmail.com
Fixes: f5c27da4e3 ("HID: initial BPF implementation")
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Florent Revest <revest@chromium.org>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20221206145936.922196-4-benjamin.tissoires@redhat.com
This commit is contained in:
Benjamin Tissoires 2022-12-06 15:59:34 +01:00
parent 86020156c8
commit 4e0b1b0731
1 changed files with 2 additions and 1 deletions
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3
drivers/hid/bpf/Kconfig
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@ -4,7 +4,8 @@ menu "HID-BPF support"
config HID_BPF
bool "HID-BPF support"
default HID_SUPPORT
depends on BPF && BPF_SYSCALL
depends on BPF && BPF_SYSCALL && \
DYNAMIC_FTRACE_WITH_DIRECT_CALLS
help
This option allows to support eBPF programs on the HID subsystem.
eBPF programs can fix HID devices in a lighter way than a full