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| author | Thomas Gleixner <[email protected]> | 2020-04-26 16:55:15 +0000 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-04-26 18:16:46 +0000 |
| commit | 21953ee5013d6632bee90ec89f2df59c69050db0 (patch) | |
| tree | 66e484a3639268a46d4e7e35276aba5952116f70 | |
| parent | x86/tlb: Restrict access to tlbstate (diff) | |
| download | kernel-21953ee5013d6632bee90ec89f2df59c69050db0.tar.gz kernel-21953ee5013d6632bee90ec89f2df59c69050db0.zip | |
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 <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 2 |
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) { |