[RFC PATCH 5/6] powerpc/64s: Move cpu_show_meltdown()

[Michael Ellerman]

This landed in setup_64.c for no good reason other than we had nowhere
else to put it. Now that we have a security-related file, that is a
better place for it so move it.

Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
---
 arch/powerpc/kernel/security.c | 12 ++++++++++++
 arch/powerpc/kernel/setup_64.c |  8 --------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index c62a5d7196e3..564e7f182a16 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -4,6 +4,9 @@
 //
 // Copyright 2018, Michael Ellerman, IBM Corporation.
 
+#include <linux/kernel.h>
+#include <linux/device.h>
+
 #include <asm/security_features.h>
 
 
@@ -12,3 +15,12 @@ unsigned long powerpc_security_features __read_mostly = \
 	SEC_FTR_L1D_FLUSH_PR | \
 	SEC_FTR_BNDS_CHK_SPEC_BAR | \
 	SEC_FTR_FAVOUR_SECURITY;
+
+
+ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	if (rfi_flush)
+		return sprintf(buf, "Mitigation: RFI Flush\n");
+
+	return sprintf(buf, "Vulnerable\n");
+}
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index c388cc3357fa..c27557aff394 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -927,12 +927,4 @@ static __init int rfi_flush_debugfs_init(void)
 }
 device_initcall(rfi_flush_debugfs_init);
 #endif
-
-ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	if (rfi_flush)
-		return sprintf(buf, "Mitigation: RFI Flush\n");
-
-	return sprintf(buf, "Vulnerable\n");
-}
 #endif /* CONFIG_PPC_BOOK3S_64 */
-- 
2.14.1