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authorLinus Torvalds <torvalds@linux-foundation.org>2023-03-14 17:07:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-03-14 17:07:54 -0700
commit29db00c252c7d0e015f3b436647b6f87d5854833 (patch)
tree62cbe636e5d2ca14a69abcfd46a86670d27442f7 /arch
parented38ff164fba98a21993c95d240013f32309ccab (diff)
parentc2679254b9c9980d9045f0f722cf093a2b1f7590 (diff)
Merge tag 'trace-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt: - Do not allow histogram values to have modifies. They can cause a NULL pointer dereference if they do. - Warn if hist_field_name() is passed a NULL. Prevent the NULL pointer dereference mentioned above. - Fix invalid address look up race in lookup_rec() - Define ftrace_stub_graph conditionally to prevent linker errors - Always check if RCU is watching at all tracepoint locations * tag 'trace-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Make tracepoint lockdep check actually test something ftrace,kcfi: Define ftrace_stub_graph conditionally ftrace: Fix invalid address access in lookup_rec() when index is 0 tracing: Check field value in hist_field_name() tracing: Do not let histogram values have some modifiers
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/ftrace_64.S2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 1265ad519249..fb4f1e01b64a 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -136,10 +136,12 @@ SYM_TYPED_FUNC_START(ftrace_stub)
RET
SYM_FUNC_END(ftrace_stub)
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
SYM_TYPED_FUNC_START(ftrace_stub_graph)
CALL_DEPTH_ACCOUNT
RET
SYM_FUNC_END(ftrace_stub_graph)
+#endif
#ifdef CONFIG_DYNAMIC_FTRACE