[PATCH 8/8] riscv: ftrace: support PREEMPT

Andy Chiu andy.chiu at sifive.com
Thu Jun 13 00:11:13 PDT 2024


Now, we can safely enable dynamic ftrace with kernel preemption.

Signed-off-by: Andy Chiu <andy.chiu at sifive.com>
---
 arch/riscv/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 80b8d48e1e46..c1493ee1b8cd 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -133,7 +133,7 @@ config RISCV
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
-	select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION
+	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
 	select HAVE_EBPF_JIT if MMU
 	select HAVE_GUP_FAST if MMU
 	select HAVE_FUNCTION_ARG_ACCESS_API

-- 
2.43.0




More information about the linux-riscv mailing list