[XEN PATCH 3/5] x86: deviate violation of MISRA C Rule 20.12

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

MISRA C Rule 20.12 states: "A macro parameter used as an operand to
the # or ## operators, which is itself subject to further macro replacement,
shall only be used as an operand to these operators".

When the second parameter of GET_SET_SHARED is a macro and is used as both
a regular parameter and for token pasting the rule deliberately violated.
A SAF-x-safe comment is used to deviate the usage.

No functional change.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
---
 xen/arch/x86/include/asm/shared.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/include/asm/shared.h 
b/xen/arch/x86/include/asm/shared.h
index 60b67fa4b427..c26d4b2b3f0f 100644
--- a/xen/arch/x86/include/asm/shared.h
+++ b/xen/arch/x86/include/asm/shared.h
@@ -76,6 +76,7 @@ static inline void arch_set_##field(struct vcpu *v,         \
 
 GET_SET_SHARED(unsigned long, max_pfn)
 GET_SET_SHARED(xen_pfn_t, pfn_to_mfn_frame_list_list)
+/* SAF-6-safe Rule 20.12: expansion of macro nmi_reason */
 GET_SET_SHARED(unsigned long, nmi_reason)
 
 GET_SET_VCPU(unsigned long, cr2)
-- 
2.34.1