[PATCH v4 3/6] powerpc/fsl: Make stf barrier PPC_BOOK3S_64 specific.
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STALE3002d
From: Diana Craciun <hidden>
Date: 2018-07-17 11:10:05
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Revision v4 of 2 in this series.
Revisions (2)
- v3 [diff vs current]
- v4 current
NXP Book3E platforms are not vulnerable to speculative store bypass, so make the mitigations PPC_BOOK3S_64 specific. Signed-off-by: Diana Craciun <redacted> --- History: v2-->v3 - new arch/powerpc/kernel/security.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index 2ebfc5b..3a4e5c3 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c@@ -169,6 +169,7 @@ 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. */
@@ -316,3 +317,5 @@ static __init int stf_barrier_debugfs_init(void) } device_initcall(stf_barrier_debugfs_init); #endif /* CONFIG_DEBUG_FS */ +#endif /* CONFIG_PPC_BOOK3S_64 */ +
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2.5.5