Reported by linux-next: After merging the hid tree, today's linux-next build (x86_64 allmodconfig) failed like this: x86_64-linux-gnu-ld: vmlinux.o: in function `hid_bpf_input_report': (.text+0x1c75181): undefined reference to `hid_input_report' Caused by commit 9be50ac30a83 ("HID: bpf: allow to inject HID event from BPF") I just forgot to put the indirection in place. Link: https://lore.kernel.org/linux-kernel/20240411105131.7830f966@xxxxxxxxxxxxxxxx/ Signed-off-by: Benjamin Tissoires <bentiss@xxxxxxxxxx> --- Seems like an overlook in my patch. --- drivers/hid/bpf/hid_bpf_dispatch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c index 79ece3d1b9e2..10289f44d0cc 100644 --- a/drivers/hid/bpf/hid_bpf_dispatch.c +++ b/drivers/hid/bpf/hid_bpf_dispatch.c @@ -534,7 +534,7 @@ hid_bpf_input_report(struct hid_bpf_ctx *ctx, enum hid_report_type type, u8 *buf hdev = (struct hid_device *)ctx->hid; /* discard const */ - return hid_input_report(hdev, type, buf, size, 0); + return hid_bpf_ops->hid_input_report(hdev, type, buf, size, 0); } __bpf_kfunc_end_defs(); --- base-commit: 685dadafbde29dc3d6b7a13be284d684b06d4d4f change-id: 20240411-fix-hid-bpf-fb67411ac650 Best regards, -- Benjamin Tissoires <bentiss@xxxxxxxxxx>