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[XEN][PATCH] xen/arm: restrict cpu_up_send_sgi() to arm32
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
- Date: Thu, 11 Sep 2025 08:12:13 +0000
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- Cc: Grygorii Strashko <grygorii_strashko@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Thu, 11 Sep 2025 08:12:20 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHcIvPHEqUOcNKJLk6tvD5PLd0SYw==
- Thread-topic: [XEN][PATCH] xen/arm: restrict cpu_up_send_sgi() to arm32
From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
Restrict cpu_up_send_sgi() function to arm32 code as it's used by arm32
platforms only and unreachable on arm64 (Misra rule 2.1).
Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
---
Logically cpu_up_send_sgi() should be moved in arm32, but source is
"GPL-2.0-or-later" while possible destination is "GPL-2.0-only", so put it
under ifdef for now.
xen/arch/arm/smpboot.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/xen/arch/arm/smpboot.c b/xen/arch/arm/smpboot.c
index 7f3cfa812edb..45f3be323687 100644
--- a/xen/arch/arm/smpboot.c
+++ b/xen/arch/arm/smpboot.c
@@ -464,6 +464,7 @@ static void set_smp_up_cpu(unsigned long mpidr)
}
+#ifdef CONFIG_ARM_32
int __init cpu_up_send_sgi(int cpu)
{
/* We don't know the GIC ID of the CPU until it has woken up, so just
@@ -473,6 +474,7 @@ int __init cpu_up_send_sgi(int cpu)
return 0;
}
+#endif
/* Bring up a remote CPU */
int __cpu_up(unsigned int cpu)
--
2.34.1
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