From bfe3d8f6313d1e10806062ba22c5f660dddecbcc Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 21 Apr 2020 11:20:43 +0200
Subject: x86/tlb: Restrict access to tlbstate

Hide tlbstate, flush_tlb_info and related helpers when tlbflush.h is
included from a module. Modules have absolutely no business with these
internals.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200421092600.328438734@linutronix.de
---
 arch/x86/mm/init.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/x86/mm/init.c')

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index d37e8164022e..248dc8fe43c5 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -992,7 +992,6 @@ __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
 	.next_asid = 1,
 	.cr4 = ~0UL,	/* fail hard if we screw up cr4 shadow initialization */
 };
-EXPORT_PER_CPU_SYMBOL(cpu_tlbstate);
 
 void update_cache_mode_entry(unsigned entry, enum page_cache_mode cache)
 {
-- 
cgit v1.2.3