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authorThomas Gleixner <tglx@linutronix.de>2020-04-26 18:55:15 +0200
committerBorislav Petkov <bp@suse.de>2020-04-26 20:16:46 +0200
commit21953ee5013d6632bee90ec89f2df59c69050db0 (patch)
tree66e484a3639268a46d4e7e35276aba5952116f70
parentbfe3d8f6313d1e10806062ba22c5f660dddecbcc (diff)
x86/cpu: Export native_write_cr4() only when CONFIG_LKTDM=m
Modules have no business poking into this but fixing this is for later. [ bp: Carve out from an earlier patch. ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200421092558.939985695@linutronix.de
-rw-r--r--arch/x86/kernel/cpu/common.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 82042f40fc45..eab3ebd22927 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -387,7 +387,9 @@ set_register:
bits_missing);
}
}
+#if IS_MODULE(CONFIG_LKDTM)
EXPORT_SYMBOL_GPL(native_write_cr4);
+#endif
void cr4_update_irqsoff(unsigned long set, unsigned long clear)
{