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From: "tip-bot2 for Thomas Gleixner" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@suse.de>, x86 <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [tip: x86/mm] x86/cpu: Export native_write_cr4() only when CONFIG_LKTDM=m
Date: Sun, 26 Apr 2020 18:42:46 -0000	[thread overview]
Message-ID: <158792656642.28353.3424858438279806300.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20200421092558.939985695@linutronix.de>

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@linutronix.de>
AuthorDate:    Sun, 26 Apr 2020 18:55:15 +02:00
Committer:     Borislav Petkov <bp@suse.de>
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@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200421092558.939985695@linutronix.de
---
 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)
 {

  reply	other threads:[~2020-04-26 18:42 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-21  9:20 [patch V2 00/16] x86/tlb: Unexport per-CPU tlbstate Thomas Gleixner
2020-04-21  9:20 ` [patch V2 01/16] x86/tlb: Uninline __get_current_cr3_fast() Thomas Gleixner
2020-04-21 17:04   ` Andy Lutomirski
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 02/16] x86/cpu: Uninline CR4 accessors Thomas Gleixner
2020-04-26 18:42   ` tip-bot2 for Thomas Gleixner [this message]
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 03/16] x86/cr4: Sanitize CR4.PCE update Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 04/16] x86/alternatives: Move temporary_mm helpers into C Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 05/16] x86/tlb: Move __flush_tlb() out of line Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 06/16] x86/tlb: Move __flush_tlb_global() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 07/16] x86/tlb: Move __flush_tlb_one_user() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 08/16] x86/tlb: Move __flush_tlb_one_kernel() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 09/16] x86/tlb: Move flush_tlb_others() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 10/16] x86/tlb: Move __flush_tlb_all() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 11/16] x86/tlb: Move paravirt_tlb_remove_table() to the usage site Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 12/16] x86/tlb: Move cr4_set_bits_and_update_boot() " Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 13/16] x86/tlb: Uninline nmi_uaccess_okay() Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 14/16] x86/tlb: Move PCID helpers where they are used Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 15/16] xen/privcmd: Remove unneeded asm/tlb.h include Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner
2020-04-21  9:20 ` [patch V2 16/16] x86/tlb: Restrict access to tlbstate Thomas Gleixner
2020-04-26 18:42   ` [tip: x86/mm] " tip-bot2 for Thomas Gleixner

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