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McKenney" , Christoph Hellwig , Bart Van Assche , Steven Rostedt , Masami Hiramatsu , Nathan Chancellor Subject: [PATCH v2 03/14] tracing: Disable branch profiling for COMPILE_TEST builds Date: Mon, 9 Nov 2026 11:13:11 -0800 Message-ID: <30ea46a36f2985e32389067317977371e6776e27.1794250850.git.bvanassche@acm.org> X-Mailer: git-send-email 2.56.0.506.g506a7eabc5-goog In-Reply-To: References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable WARN_CONTEXT_ANALYSIS depends on !TRACE_BRANCH_PROFILING because branch profiling instruments every if-condition and obscures control flow from Clang's thread-safety analyzer. Make PROFILE_ANNOTATED_BRANCHES and PROFILE_ALL_BRANCHES depend on !COMPILE_TEST so that allmodconfig and allyesconfig builds do not enable TRACE_BRANCH_PROFILING and instead enable WARN_CONTEXT_ANALYSIS_ALL. Signed-off-by: Bart Van Assche --- kernel/trace/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 35d043b19332..afbf17099a68 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -687,6 +687,7 @@ config BRANCH_PROFILE_NONE =20 config PROFILE_ANNOTATED_BRANCHES bool "Trace likely/unlikely profiler" + depends on !COMPILE_TEST select TRACE_BRANCH_PROFILING help This tracer profiles all likely and unlikely macros @@ -698,7 +699,7 @@ config PROFILE_ANNOTATED_BRANCHES on if you need to profile the system's use of these macros. =20 config PROFILE_ALL_BRANCHES - bool "Profile all if conditionals" if !FORTIFY_SOURCE + bool "Profile all if conditionals" if !FORTIFY_SOURCE && !COMPILE_TEST select TRACE_BRANCH_PROFILING help This tracer profiles all branch conditions. Every if ()