diff options
| author | Diana Craciun <diana.craciun@nxp.com> | 2019-03-29 22:25:57 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-03 06:25:12 +0200 |
| commit | 5a56eba71a139f1ded1707cd102017c5f2ad83b1 (patch) | |
| tree | db31fcc199817076b7d8ed887de36e749eff00c9 /arch/powerpc/kernel/security.c | |
| parent | 64ca6cd4ae6dad71db5b3df06237a3bd44b747b9 (diff) | |
powerpc/64: Make stf barrier PPC_BOOK3S_64 specific.
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>
Diffstat (limited to 'arch/powerpc/kernel/security.c')
| -rw-r--r-- | arch/powerpc/kernel/security.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index 79f9397998ed..8ee1ade845c6 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -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 */ |