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On powerpc we can end up with IMA=y and PPC_PSERIES=n which leads to: warning: (IMA) selects TCG_IBMVTPM which has unmet direct dependencies (TCG_TPM && PPC_PSERIES) tpm_ibmvtpm.c:(.text+0x14f3e8): undefined reference to `.plpar_hcall_norets' I'm not sure why IMA needs to select those user-visible symbols, but if it must then the simplest fix is to just express the proper dependencies on the select. Tested-by: Hon Ching (Vicky) Lo <lo1@us.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>