[xen staging] misra: add missing noreturn attribute for __div0()

[patchbot@xxxxxxx]

commit 268e818bf1c301d7367f923b72f369a3d6a76922
Author:     Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
AuthorDate: Tue Aug 12 15:46:43 2025 +0000
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Aug 15 12:37:18 2025 -0700

    misra: add missing noreturn attribute for __div0()
    
    The __div0() function never returns to its caller, causing a violation
    of MISRA C Rule 2.1: "A project shall not contain unreachable code".
    Add the `noreturn` attribute to fix this.
    
    Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
    Reviewed-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 445e7378dd..2bc3e1df04 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -172,7 +172,7 @@ void init_traps(void)
     isb();
 }
 
-void asmlinkage __div0(void)
+void asmlinkage noreturn __div0(void)
 {
     printk("Division by zero in hypervisor.\n");
     BUG();
--
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