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x86/mm: Remove unused current_untag_mask()
e0bddc19ba
("x86/mm: Reduce untagged_addr() overhead for systems without LAM")
removed its only usage site so drop it.
Move the tlbstate_untag_mask up in the header and drop the ugly
ifdeffery as the unused declaration should be properly discarded.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/r/20230614174148.5439-1-bp@alien8.de
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@@ -14,6 +14,8 @@
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#include <asm/processor-flags.h>
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#include <asm/pgtable.h>
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DECLARE_PER_CPU(u64, tlbstate_untag_mask);
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void __flush_tlb_all(void);
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#define TLB_FLUSH_ALL -1UL
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@@ -54,15 +56,6 @@ static inline void cr4_clear_bits(unsigned long mask)
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local_irq_restore(flags);
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}
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#ifdef CONFIG_ADDRESS_MASKING
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DECLARE_PER_CPU(u64, tlbstate_untag_mask);
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static inline u64 current_untag_mask(void)
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{
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return this_cpu_read(tlbstate_untag_mask);
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}
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#endif
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#ifndef MODULE
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/*
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* 6 because 6 should be plenty and struct tlb_state will fit in two cache
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