[xen master] x86/traps: address violations of MISRA C Rule 20.7

[patchbot@xxxxxxx]

commit 402e473249cf62dd4c6b3b137aa845db0fe1453a
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Thu Jun 27 13:48:08 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Jun 27 13:48:08 2024 +0200

    x86/traps: address violations of MISRA C Rule 20.7
    
    MISRA C Rule 20.7 states: "Expressions resulting from the expansion
    of macro parameters shall be enclosed in parentheses". Therefore, some
    macro definitions should gain additional parentheses to ensure that all
    current and future users will be safe with respect to expansions that
    can possibly alter the semantics of the passed-in macro parameter.
    
    No functional change.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
---
 xen/arch/x86/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 9906e874d5..ee91fc56b1 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -123,7 +123,7 @@ unsigned int __ro_after_init ler_msr;
 const unsigned int nmi_cpu;
 
 #define stack_words_per_line 4
-#define ESP_BEFORE_EXCEPTION(regs) ((unsigned long *)regs->rsp)
+#define ESP_BEFORE_EXCEPTION(regs) ((unsigned long *)(regs)->rsp)
 
 void show_code(const struct cpu_user_regs *regs)
 {
--
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