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Message-Id: <20200214204741.94112-2-jbi.octave@gmail.com>
Date: Fri, 14 Feb 2020 20:47:12 +0000
From: Jules Irenge <jbi.octave@...il.com>
To: linux-kernel@...r.kernel.org
Cc: boqun.feng@...il.com, Jules Irenge <jbi.octave@...il.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
"H. Peter Anvin" <hpa@...or.com>,
x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
Neil Horman <nhorman@...driver.com>,
Allison Randal <allison@...utok.net>,
Kate Stewart <kstewart@...uxfoundation.org>
Subject: [PATCH 01/30] x86/apic/vector: Add missing annotation to lock_vector_lock(void)
Sparse reports a warning at lock_vector_lock(void)
warning: context imbalance in lock_vector_lock() - wrong count at exit
The root cause is the missing annotation at lock_vector_lock(void)
Add the missing __acquires(&vector_lock) annotation
Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
arch/x86/kernel/apic/vector.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 2c5676b0a6e7..d7556939c6cf 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -47,7 +47,7 @@ static struct irq_matrix *vector_matrix;
static DEFINE_PER_CPU(struct hlist_head, cleanup_list);
#endif
-void lock_vector_lock(void)
+void lock_vector_lock(void) __acquires(&vector_lock)
{
/* Used to the online set of cpus does not change
* during assign_irq_vector.
--
2.24.1
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