From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 13 Apr 2018 13:54:52 +0000 (+1000)
Subject: mm/pkeys: Add an empty arch_pkeys_enabled()
X-Git-Tag: v4.18-rc1~108^2~114^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4414ef9536c398ebc4e1443d59fbae8fea53732b;p=thirdparty%2Fkernel%2Flinux.git

mm/pkeys: Add an empty arch_pkeys_enabled()

Add an empty arch_pkeys_enabled() in linux/pkeys.h for the
CONFIG_ARCH_HAS_PKEYS=n case.

Split out of a patch by Ram Pai <linuxram@us.ibm.com>.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
---

diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h
index 946cb773b79f1..2955ba9760489 100644
--- a/include/linux/pkeys.h
+++ b/include/linux/pkeys.h
@@ -39,6 +39,11 @@ static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 	return 0;
 }
 
+static inline bool arch_pkeys_enabled(void)
+{
+	return false;
+}
+
 static inline void copy_init_pkru_to_fpregs(void)
 {
 }