[PATCH] sched_ext: add CONFIG_DEBUG_INFO_BTF dependency
From: Andrea Righi
Date: Thu Jun 27 2024 - 14:45:54 EST
Without BTF, attempting to load any sched_ext scheduler will result in
an error like the following:
libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled?
This makes sched_ext pretty much unusable, so explicitly depend on
CONFIG_DEBUG_INFO_BTF to prevent these issues.
Signed-off-by: Andrea Righi <andrea.righi@xxxxxxxxxxxxx>
---
kernel/Kconfig.preempt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
index f035c87d02f1..f3d140c3acc1 100644
--- a/kernel/Kconfig.preempt
+++ b/kernel/Kconfig.preempt
@@ -135,7 +135,7 @@ config SCHED_CORE
config SCHED_CLASS_EXT
bool "Extensible Scheduling Class"
- depends on BPF_SYSCALL && BPF_JIT
+ depends on BPF_SYSCALL && BPF_JIT && DEBUG_INFO_BTF
help
This option enables a new scheduler class sched_ext (SCX), which
allows scheduling policies to be implemented as BPF programs to
--
2.43.0