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[v2,6/6] riscv: ftrace: support PREEMPT

Message ID 20240628-dev-andyc-dyn-ftrace-v4-v2-6-1e5f4cb1f049@sifive.com (mailing list archive)
State New
Headers show
Series riscv: ftrace: atmoic patching and preempt improvements | expand

Commit Message

Andy Chiu June 28, 2024, 11:47 a.m. UTC 
Now, we can safely enable dynamic ftrace with kernel preemption.

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

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 55c70efbad0a..881ea466ff52 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -139,7 +139,7 @@  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