[xen master] arm/processor: fix MISRA C 2012 Rule 20.7 violations

[patchbot@xxxxxxx]

commit 1d5b8c434dea074fce0f4cf796bd5169c341a806
Author:     Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
AuthorDate: Wed Aug 24 14:23:00 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Aug 24 14:23:00 2022 +0200

    arm/processor: fix MISRA C 2012 Rule 20.7 violations
    
    In macros MPIDR_LEVEL_SHIFT() and MPIDR_AFFINITY_LEVEL(), add parentheses
    around the macro parameters 'level' and 'mpidr', respectively, to prevent
    against unintended expansions.
    
    Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/processor.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/include/asm/processor.h 
b/xen/arch/arm/include/asm/processor.h
index 55f56b33bc..1dd81d7d52 100644
--- a/xen/arch/arm/include/asm/processor.h
+++ b/xen/arch/arm/include/asm/processor.h
@@ -127,10 +127,10 @@
 #define MPIDR_LEVEL_MASK        ((1 << MPIDR_LEVEL_BITS) - 1)
 
 #define MPIDR_LEVEL_SHIFT(level) \
-         (((1 << level) >> 1) << MPIDR_LEVEL_BITS_SHIFT)
+         (((1 << (level)) >> 1) << MPIDR_LEVEL_BITS_SHIFT)
 
 #define MPIDR_AFFINITY_LEVEL(mpidr, level) \
-         ((mpidr >> MPIDR_LEVEL_SHIFT(level)) & MPIDR_LEVEL_MASK)
+         (((mpidr) >> MPIDR_LEVEL_SHIFT(level)) & MPIDR_LEVEL_MASK)
 
 #define AFFINITY_MASK(level)    ~((_AC(0x1,UL) << MPIDR_LEVEL_SHIFT(level)) - 
1)
 
--
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