diff options
| author | Diana Craciun <diana.craciun@nxp.com> | 2019-04-11 21:46:07 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-17 08:36:41 +0200 |
| commit | 1ec00d224fb3931bfbb6e57473aeadee5d7455d4 (patch) | |
| tree | 30d1236f4db9ad494403ae9550b61a1cf538ecdc /arch/powerpc/kernel/security.c | |
| parent | 78749d1a7a08c21510d457fe27d5a14b1181a85b (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: Sasha Levin <sashal@kernel.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 813e38ff81ce..926ed3c38741 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -177,6 +177,7 @@ 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. */ @@ -324,3 +325,4 @@ static __init int stf_barrier_debugfs_init(void) } device_initcall(stf_barrier_debugfs_init); #endif /* CONFIG_DEBUG_FS */ +#endif /* CONFIG_PPC_BOOK3S_64 */ |