[PATCH 5.4 035/154] x86/irq: Define trace events conditionally

Greg Kroah-Hartman
2025-04-08T12:05:32Z

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 9de7695925d5d2d2085681ba935857246eb2817d ]

When both of X86_LOCAL_APIC and X86_THERMAL_VECTOR are disabled,
the irq tracing produces a W=1 build warning for the tracing
definitions:

In file included from include/trace/trace_events.h:27,
from include/trace/define_trace.h:113,
from arch/x86/include/asm/trace/irq_vectors.h:383,
from arch/x86/kernel/irq.c:29:
include/trace/stages/init.h:2:23: error: 'str__irq_vectors__trace_system_name' defined but not used [-Werror=unused-const-variable=]

Make the tracepoints conditional on the same symbosl that guard
their usage.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250225213236.3141752-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kernel/irq.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 7dfd0185767cc..76600d8f69376 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -20,8 +20,10 @@
#include <asm/hw_irq.h>
#include <asm/desc.h>

+#if defined(CONFIG_X86_LOCAL_APIC) || defined(CONFIG_X86_THERMAL_VECTOR)
#define CREATE_TRACE_POINTS
#include <asm/trace/irq_vectors.h>
+#endif

DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
EXPORT_PER_CPU_SYMBOL(irq_stat);
--
2.39.5