[xen staging] x86/mm: drop paging_get_mode()

[patchbot@xxxxxxx]

commit dbcbbed4e9dc25faa211d359c2f04a9c70f087c9
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Wed Aug 6 14:49:45 2025 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Aug 6 14:49:45 2025 +0200

    x86/mm: drop paging_get_mode()
    
    The function was introduced without any caller, and never gained any.
    Thus it has always been violating Misra rule 2.1 (unreachable code).
    
    Fixes: dd6de3ab9985 ("Implement Nested-on-Nested")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/include/asm/paging.h | 1 -
 xen/arch/x86/mm/paging.c          | 8 --------
 2 files changed, 9 deletions(-)

diff --git a/xen/arch/x86/include/asm/paging.h 
b/xen/arch/x86/include/asm/paging.h
index 8a2a0af408..94c31a268e 100644
--- a/xen/arch/x86/include/asm/paging.h
+++ b/xen/arch/x86/include/asm/paging.h
@@ -225,7 +225,6 @@ int paging_enable(struct domain *d, u32 mode);
 
 #define paging_get_hostmode(v)         ((v)->arch.paging.mode)
 #define paging_get_nestedmode(v)       ((v)->arch.paging.nestedmode)
-const struct paging_mode *paging_get_mode(struct vcpu *v);
 void paging_update_nestedmode(struct vcpu *v);
 
 /* Page fault handler
diff --git a/xen/arch/x86/mm/paging.c b/xen/arch/x86/mm/paging.c
index c77f4c1dac..165e0f88c2 100644
--- a/xen/arch/x86/mm/paging.c
+++ b/xen/arch/x86/mm/paging.c
@@ -946,14 +946,6 @@ void paging_dump_vcpu_info(struct vcpu *v)
     }
 }
 
-const struct paging_mode *paging_get_mode(struct vcpu *v)
-{
-    if (!nestedhvm_is_n2(v))
-        return paging_get_hostmode(v);
-
-    return paging_get_nestedmode(v);
-}
-
 #ifdef CONFIG_HVM
 void paging_update_nestedmode(struct vcpu *v)
 {
--
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