[tip:x86/entry] Documentation/admin: Remove the vsyscall=native documentation

[tip-bot for Andy Lutomirski]

Commit-ID:  d974ffcfb7447db5f29a4b662a3eaf99a4e1109e
Gitweb:     https://git.kernel.org/tip/d974ffcfb7447db5f29a4b662a3eaf99a4e1109e
Author:     Andy Lutomirski <luto@xxxxxxxxxx>
AuthorDate: Wed, 26 Jun 2019 21:45:02 -0700
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 28 Jun 2019 00:04:38 +0200

Documentation/admin: Remove the vsyscall=native documentation

The vsyscall=native feature is gone -- remove the docs.

Fixes: 076ca272a14c ("x86/vsyscall/64: Drop "native" vsyscalls")
Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Florian Weimer <fweimer@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Kernel Hardening <kernel-hardening@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/d77c7105eb4c57c1a95a95b6a5b8ba194a18e764.1561610354.git.luto@xxxxxxxxxx

---
 Documentation/admin-guide/kernel-parameters.txt | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 138f6664b2e2..0082d1e56999 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5102,12 +5102,6 @@
 			emulate     [default] Vsyscalls turn into traps and are
 			            emulated reasonably safely.
 
-			native      Vsyscalls are native syscall instructions.
-			            This is a little bit faster than trapping
-			            and makes a few dynamic recompilers work
-			            better than they would in emulation mode.
-			            It also makes exploits much easier to write.
-
 			none        Vsyscalls don't work at all.  This makes
 			            them quite hard to use for exploits but
 			            might break your system.