probes: blktrace: Check if config options are set

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/probes/Makefile b/probes/Makefile
index 7129e979e28fe8678123ffcc3285730c0c9c47a3..f4642d5b72d22b26cf89ada925c2ff18282b9929 100644 (file)
--- a/probes/Makefile
+++ b/probes/Makefile
@@ -13,9 +13,14 @@ obj-m += lttng-probe-lttng.o
 obj-m += lttng-probe-sched.o
 obj-m += lttng-probe-kvm.o
 obj-m += lttng-probe-irq.o
-obj-m += lttng-probe-block.o
 obj-m += lttng-probe-syscalls.o
 
+ifneq ($(CONFIG_BLOCK),)
+ifneq ($(CONFIG_EVENT_TRACING),)       # need blk_cmd_buf_len
+obj-m += lttng-probe-block.o
+endif
+endif
+
 ifneq ($(CONFIG_KPROBES),)
 obj-m += lttng-kprobes.o
 endif