From: Diana Craciun diana.craciun@nxp.com
commit 6453b532f2c8856a80381e6b9a1f5ea2f12294df upstream.
NXP Book3E platforms are not vulnerable to speculative store bypass, so make the mitigations PPC_BOOK3S_64 specific.
Signed-off-by: Diana Craciun diana.craciun@nxp.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/security.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -177,6 +177,7 @@ ssize_t cpu_show_spectre_v2(struct devic return s.len; }
+#ifdef CONFIG_PPC_BOOK3S_64 /* * Store-forwarding barrier support. */ @@ -322,3 +323,4 @@ static __init int stf_barrier_debugfs_in } device_initcall(stf_barrier_debugfs_init); #endif /* CONFIG_DEBUG_FS */ +#endif /* CONFIG_PPC_BOOK3S_64 */