[xen staging] xen/arm: Drop frametable_virt_end

[patchbot@xxxxxxx]

commit fe6a12a0838864e8c296432965df1694659c104b
Author:     Michal Orzel <michal.orzel@xxxxxxx>
AuthorDate: Fri Jun 27 10:43:34 2025 +0200
Commit:     Michal Orzel <michal.orzel@xxxxxxx>
CommitDate: Mon Jun 30 11:50:50 2025 +0200

    xen/arm: Drop frametable_virt_end
    
    It has never been used since the introduction and is technically a dead
    code violating MISRA C.
    
    Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
    Reviewed-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/config.h | 4 ----
 xen/arch/arm/mmu/mm.c             | 5 -----
 2 files changed, 9 deletions(-)

diff --git a/xen/arch/arm/include/asm/config.h 
b/xen/arch/arm/include/asm/config.h
index 272e4565e5..f18825bc2d 100644
--- a/xen/arch/arm/include/asm/config.h
+++ b/xen/arch/arm/include/asm/config.h
@@ -66,10 +66,6 @@
 #define STACK_ORDER 3
 #define STACK_SIZE  (PAGE_SIZE << STACK_ORDER)
 
-#ifndef __ASSEMBLY__
-extern unsigned long frametable_virt_end;
-#endif
-
 #define watchdog_disable() ((void)0)
 #define watchdog_enable()  ((void)0)
 
diff --git a/xen/arch/arm/mmu/mm.c b/xen/arch/arm/mmu/mm.c
index 9c50479c63..6604f3bf4e 100644
--- a/xen/arch/arm/mmu/mm.c
+++ b/xen/arch/arm/mmu/mm.c
@@ -8,8 +8,6 @@
 #include <xen/pdx.h>
 #include <xen/string.h>
 
-unsigned long frametable_virt_end __read_mostly;
-
 /* Map a frame table to cover physical addresses ps through pe */
 void __init setup_frametable_mappings(paddr_t ps, paddr_t pe)
 {
@@ -46,9 +44,6 @@ void __init setup_frametable_mappings(paddr_t ps, paddr_t pe)
     memset(&frame_table[0], 0, nr_pdxs * sizeof(struct page_info));
     memset(&frame_table[nr_pdxs], -1,
            frametable_size - (nr_pdxs * sizeof(struct page_info)));
-
-    frametable_virt_end = FRAMETABLE_VIRT_START + (nr_pdxs *
-                                                   sizeof(struct page_info));
 }
 
 /*
--
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