xen/arm64: Drop relocate_and_switch_ttbr() stub

In the original patch e7a80636f16e ("xen/arm: add cache coloring support
for Xen image"), the stub was added under wrong assumption that DCE
won't remove the function call if it's not static. This assumption is
incorrect as we already rely on DCE for cases like this one. Therefore
drop the stub, that otherwise would be a place potentially prone to
errors in the future.

Suggested-by: Julien Grall <julien@xen.org>
Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Reviewed-by: Luca Fancellu <luca.fancellu@arm.com>
Release-Acked-By: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>

diff --git a/xen/arch/arm/arm64/mmu/mm.c b/xen/arch/arm/arm64/mmu/mm.c
index 26361c4fe4c065062f75ca3c542fe6459e0901b8..c1efa1348aee81384c08300158974bfefff1f81f 100644 (file)
--- a/xen/arch/arm/arm64/mmu/mm.c
+++ b/xen/arch/arm/arm64/mmu/mm.c
@@ -171,8 +171,6 @@ void __init relocate_and_switch_ttbr(uint64_t ttbr)
      */
     update_identity_mapping(false);
 }
-#else
-void __init relocate_and_switch_ttbr(uint64_t ttbr) {}
 #endif
 
 void __init switch_ttbr(uint64_t ttbr)