forked from SLFO-pool/xen
50 lines
1.9 KiB
Diff
50 lines
1.9 KiB
Diff
Subject: Arm64: adjust __irq_to_desc() to fix build with gcc14
|
||
From: Jan Beulich jbeulich@suse.com Thu Aug 29 10:03:53 2024 +0200
|
||
Date: Thu Aug 29 10:03:53 2024 +0200:
|
||
Git: 99f942f3d410059dc223ee0a908827e928ef3592
|
||
|
||
With the original code I observe
|
||
|
||
In function ‘__irq_to_desc’,
|
||
inlined from ‘route_irq_to_guest’ at arch/arm/irq.c:465:12:
|
||
arch/arm/irq.c:54:16: error: array subscript -2 is below array bounds of ‘irq_desc_t[32]’ {aka ‘struct irq_desc[32]’} [-Werror=array-bounds=]
|
||
54 | return &this_cpu(local_irq_desc)[irq];
|
||
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
which looks pretty bogus: How in the world does the compiler arrive at
|
||
-2 when compiling route_irq_to_guest()? Yet independent of that the
|
||
function's parameter wants to be of unsigned type anyway, as shown by
|
||
a vast majority of callers (others use plain int when they really mean
|
||
non-negative quantities). With that adjustment the code compiles fine
|
||
again.
|
||
|
||
Signed-off-by: Jan Beulich <jbeulich@suse.com>
|
||
Acked-by: Michal Orzel <michal.orzel@amd.com>
|
||
|
||
diff --git a/xen/arch/arm/include/asm/irq.h b/xen/arch/arm/include/asm/irq.h
|
||
index ec437add09..88e060bf29 100644
|
||
--- a/xen/arch/arm/include/asm/irq.h
|
||
+++ b/xen/arch/arm/include/asm/irq.h
|
||
@@ -56,7 +56,7 @@ extern const unsigned int nr_irqs;
|
||
struct irq_desc;
|
||
struct irqaction;
|
||
|
||
-struct irq_desc *__irq_to_desc(int irq);
|
||
+struct irq_desc *__irq_to_desc(unsigned int irq);
|
||
|
||
#define irq_to_desc(irq) __irq_to_desc(irq)
|
||
|
||
diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c
|
||
index 6b89f64fd1..b9757d7ad3 100644
|
||
--- a/xen/arch/arm/irq.c
|
||
+++ b/xen/arch/arm/irq.c
|
||
@@ -48,7 +48,7 @@ void irq_end_none(struct irq_desc *irq)
|
||
static irq_desc_t irq_desc[NR_IRQS];
|
||
static DEFINE_PER_CPU(irq_desc_t[NR_LOCAL_IRQS], local_irq_desc);
|
||
|
||
-struct irq_desc *__irq_to_desc(int irq)
|
||
+struct irq_desc *__irq_to_desc(unsigned int irq)
|
||
{
|
||
if ( irq < NR_LOCAL_IRQS )
|
||
return &this_cpu(local_irq_desc)[irq];
|