Re: [PATCH 01/14] KVM: selftests: Define literal to asm constraint in aarch64 as unsigned long

[Philippe Mathieu-Daudé]

On 13/12/22 01:16, Sean Christopherson wrote:
> Define a literal '0' asm input constraint to aarch64/page_fault_test's
> guest_cas() as an unsigned long to make clang happy.
>
>    tools/testing/selftests/kvm/aarch64/page_fault_test.c:120:16: error:
>      value size does not match register size specified by the constraint
>      and modifier [-Werror,-Wasm-operand-widths]
>                         :: "r" (0), "r" (TEST_DATA), "r" (guest_test_memory));
>                                 ^
>    tools/testing/selftests/kvm/aarch64/page_fault_test.c:119:15: note:
>      use constraint modifier "w"
>                         "casal %0, %1, [%2]\n"
>                                ^~
>                                %w0
>
> Fixes: 35c581015712 ("KVM: selftests: aarch64: Add aarch64/page_fault_test")
> Cc: Ricardo Koller <ricarkol@xxxxxxxxxx>
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
> ---
>   tools/testing/selftests/kvm/aarch64/page_fault_test.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>