Commit 5a56eba7 authored by Diana Craciun's avatar Diana Craciun Committed by Greg Kroah-Hartman

powerpc/64: Make stf barrier PPC_BOOK3S_64 specific.

commit 6453b532 upstream.

NXP Book3E platforms are not vulnerable to speculative store
bypass, so make the mitigations PPC_BOOK3S_64 specific.
Signed-off-by: 's avatarDiana Craciun <diana.craciun@nxp.com>
Signed-off-by: 's avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 64ca6cd4
......@@ -176,6 +176,7 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c
return s.len;
}
#ifdef CONFIG_PPC_BOOK3S_64
/*
* Store-forwarding barrier support.
*/
......@@ -323,3 +324,4 @@ static __init int stf_barrier_debugfs_init(void)
}
device_initcall(stf_barrier_debugfs_init);
#endif /* CONFIG_DEBUG_FS */
#endif /* CONFIG_PPC_BOOK3S_64 */
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