From: Diana Craciun <diana.craciun@xxxxxxx> 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@xxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 */
