powerpc/security: Add a helper to query stf_barrier type
stable inclusion from stable-5.10.80 commit 7fcf86565bb67de1118b446397b5670fc69d3f51 bugzilla: 185821 https://gitee.com/openeuler/kernel/issues/I4L7CG Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7fcf86565bb67de1118b446397b5670fc69d3f51 -------------------------------- upstream commit 03090592 Add a helper to return the stf_barrier type for the current processor. Signed-off-by:Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/3bd5d7f96ea1547991ac2ce3137dc2b220bae285.1633464148.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by:
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Chen Jun <chenjun102@huawei.com> Reviewed-by:
Weilong Chen <chenweilong@huawei.com> Acked-by:
Weilong Chen <chenweilong@huawei.com> Signed-off-by:
Chen Jun <chenjun102@huawei.com> Signed-off-by:
Zheng Zengkai <zhengzengkai@huawei.com>
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