[PATCH 4.9 26/66] Revert "module: Add retpoline tag to VERMAGIC"

From: Greg Kroah-Hartman
Date: Mon Jan 29 2018 - 15:06:43 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

commit 5132ede0fe8092b043dae09a7cc32b8ae7272baa upstream.

This reverts commit 6cfb521ac0d5b97470883ff9b7facae264b7ab12.

Turns out distros do not want to make retpoline as part of their "ABI",
so this patch should not have been merged. Sorry Andi, this was my
fault, I suggested it when your original patch was the "correct" way of
doing this instead.

Reported-by: Jiri Kosina <jikos@xxxxxxxxxx>
Fixes: 6cfb521ac0d5 ("module: Add retpoline tag to VERMAGIC")
Acked-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: David Woodhouse <dwmw@xxxxxxxxxxxx>
Cc: rusty@xxxxxxxxxxxxxxx
Cc: arjan.van.de.ven@xxxxxxxxx
Cc: jeyu@xxxxxxxxxx
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
include/linux/vermagic.h | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -24,16 +24,10 @@
#ifndef MODULE_ARCH_VERMAGIC
#define MODULE_ARCH_VERMAGIC ""
#endif
-#ifdef RETPOLINE
-#define MODULE_VERMAGIC_RETPOLINE "retpoline "
-#else
-#define MODULE_VERMAGIC_RETPOLINE ""
-#endif

#define VERMAGIC_STRING \
UTS_RELEASE " " \
MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
- MODULE_ARCH_VERMAGIC \
- MODULE_VERMAGIC_RETPOLINE
+ MODULE_ARCH_VERMAGIC