The following commit has been merged into the x86/mm branch of tip: Commit-ID: 21953ee5013d6632bee90ec89f2df59c69050db0 Gitweb: https://git.kernel.org/tip/21953ee5013d6632bee90ec89f2df59c69050db0 Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Sun, 26 Apr 2020 18:55:15 +02:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Sun, 26 Apr 2020 20:16:46 +02:00 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@xxxxxxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Link: https://lkml.kernel.org/r/20200421092558.939985695@xxxxxxxxxxxxx --- arch/x86/kernel/cpu/common.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 82042f4..eab3ebd 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) {
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