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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2022-12-06 15:59:34 +0100 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2022-12-10 10:41:28 +0100 |
| commit | 4e0b1b0731bd355a4dee279a270bdd5b29e68b85 (patch) | |
| tree | b73e67574f0899524d28473a081739ee0a152c53 /drivers/hid | |
| parent | HID: bpf: do not rely on ALLOW_ERROR_INJECTION (diff) | |
| download | linux-4e0b1b0731bd355a4dee279a270bdd5b29e68b85.tar.xz linux-4e0b1b0731bd355a4dee279a270bdd5b29e68b85.zip | |
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: f5c27da4e3c8 ("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
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/bpf/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/hid/bpf/Kconfig b/drivers/hid/bpf/Kconfig index 298634fc3335..03f52145b83b 100644 --- a/drivers/hid/bpf/Kconfig +++ b/drivers/hid/bpf/Kconfig @@ -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 |