From: Jan Kiszka <[email protected]>

This gives

  warning: listing the stack pointer register ‘sp’ in a clobber list is 
deprecated
  note: the value of the stack pointer after an ‘asm’ statement must be the 
same as it was before the statement

with gcc 9. Obviously, this cannot be fulfilled in the given case as it
is one of the purposes of the assembly block. But as there is no code
after it anyway, it's safe to drop sp from the clobbering list.

Signed-off-by: Jan Kiszka <[email protected]>
---
 hypervisor/arch/arm/mmu_hyp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hypervisor/arch/arm/mmu_hyp.c b/hypervisor/arch/arm/mmu_hyp.c
index 1fcebef5..8a897f2b 100644
--- a/hypervisor/arch/arm/mmu_hyp.c
+++ b/hypervisor/arch/arm/mmu_hyp.c
@@ -199,7 +199,7 @@ setup_mmu_el2(unsigned long phys_cpu_data, phys2virt_t 
phys2virt, u64 ttbr)
                "bx     r0\n\t"
                : : "r" (LOCAL_CPU_BASE - phys_cpu_data),
                    "r" (phys2virt)
-               : "cc", "r0", "r1", "r2", "r3", "lr", "sp");
+               : "cc", "r0", "r1", "r2", "r3", "lr");
 }
 
 /*
-- 
2.26.2

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