[PATCH v3 7/7] riscv: ftrace: support PREEMPT

Andy Chiu andybnac at gmail.com
Wed Nov 27 09:29:08 PST 2024


From: Andy Chiu <andy.chiu at sifive.com>

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 75a5ebde4427..554e4e363c54 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -148,7 +148,7 @@ 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
-- 
2.39.3 (Apple Git-145)




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