From: Diana Craciun <diana.crac...@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.crac...@nxp.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gre...@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 */
