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x86/cpu: Export native_write_cr4() only when CONFIG_LKTDM=m

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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
This commit is contained in:
Thomas Gleixner 2020-04-26 18:55:15 +02:00 committed by Borislav Petkov
parent bfe3d8f631
commit 21953ee501
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kernel/cpu/common.c
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@ -387,7 +387,9 @@ void native_write_cr4(unsigned long val)
bits_missing); bits_missing);
} }
} }
#if IS_MODULE(CONFIG_LKDTM)
EXPORT_SYMBOL_GPL(native_write_cr4); EXPORT_SYMBOL_GPL(native_write_cr4);
#endif
void cr4_update_irqsoff(unsigned long set, unsigned long clear) void cr4_update_irqsoff(unsigned long set, unsigned long clear)
{ {