FAILED: patch "[PATCH] lkdtm: Enable DOUBLE_FAULT on all architectures" failed to apply to 5.4-stable tree

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to [off-list ref].

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From f123c42bbeff26bfe8bdb08a01307e92d51eec39 Mon Sep 17 00:00:00 2001
From: Kees Cook <redacted>
Date: Wed, 23 Jun 2021 13:39:33 -0700
Subject: [PATCH] lkdtm: Enable DOUBLE_FAULT on all architectures

Where feasible, I prefer to have all tests visible on all architectures,
but to have them wired to XFAIL. DOUBLE_FAIL was set up to XFAIL, but
wasn't actually being added to the test list.

Fixes: cea23efb4de2 ("lkdtm/bugs: Make double-fault test always available")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <redacted>
Link: https://lore.kernel.org/r/20210623203936.3151093-7-keescook@chromium.org (local)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c
index 645b31e98c77..2c89fc18669f 100644
--- a/drivers/misc/lkdtm/core.c
+++ b/drivers/misc/lkdtm/core.c

@@ -178,9 +178,7 @@ static const struct crashtype crashtypes[] = {
 	CRASHTYPE(STACKLEAK_ERASING),
 	CRASHTYPE(CFI_FORWARD_PROTO),
 	CRASHTYPE(FORTIFIED_STRSCPY),
-#ifdef CONFIG_X86_32
 	CRASHTYPE(DOUBLE_FAULT),
-#endif
 #ifdef CONFIG_PPC_BOOK3S_64
 	CRASHTYPE(PPC_SLB_MULTIHIT),
 #endif