[xen master] x86/io_apic: address violation of MISRA C:2012 Rule 10.1

[patchbot@xxxxxxx]

commit 5b2a570f84ed5eeaff64c61f2e9bd3c86b2be0a6
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Fri Oct 27 15:34:12 2023 +0200
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Nov 17 18:03:52 2023 -0800

    x86/io_apic: address violation of MISRA C:2012 Rule 10.1
    
    The definition of IO_APIC_BASE contains a sum of an essentially enum
    value (FIX_IO_APIC_BASE_0) that is positive with an index that, in all
    instances, is unsigned, therefore the former is cast to unsigned, so that
    the operands are of the same essential type.
    
    No functional change.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/include/asm/io_apic.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/include/asm/io_apic.h 
b/xen/arch/x86/include/asm/io_apic.h
index a7e4c9e146..206bb961c0 100644
--- a/xen/arch/x86/include/asm/io_apic.h
+++ b/xen/arch/x86/include/asm/io_apic.h
@@ -14,9 +14,10 @@
  * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
  */
 
-#define IO_APIC_BASE(idx)                                               \
-    ((volatile uint32_t *)(__fix_to_virt(FIX_IO_APIC_BASE_0 + (idx))    \
-                           + (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK)))
+#define IO_APIC_BASE(idx)                                         \
+    ((volatile uint32_t *)                                        \
+     (__fix_to_virt((unsigned int)FIX_IO_APIC_BASE_0 + (idx)) +   \
+                    (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK)))
 
 #define IO_APIC_ID(idx) (mp_ioapics[idx].mpc_apicid)
 
--
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