Patch "ARC: Don't use "+l" inline asm constraint" has been added to the 4.8-stable tree

Patch "ARC: Don't use "+l" inline asm constraint" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ARC: Don't use "+l" inline asm constraint

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arc-don-t-use-l-inline-asm-constraint.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 3c7c7a2fc8811bc7097479f69acf2527693d7562 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Wed, 23 Nov 2016 17:43:17 -0800
Subject: ARC: Don't use "+l" inline asm constraint

From: Vineet Gupta <vgupta@synopsys.com>

commit 3c7c7a2fc8811bc7097479f69acf2527693d7562 upstream.

Apparenty this is coming in the way of gcc fix which inhibits the usage
of LP_COUNT as a gpr.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arc/include/asm/delay.h |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/arch/arc/include/asm/delay.h
+++ b/arch/arc/include/asm/delay.h
@@ -22,10 +22,11 @@
 static inline void __delay(unsigned long loops)
 {
 	__asm__ __volatile__(
-	"	lp  1f	\n"
-	"	nop	\n"
-	"1:		\n"
-	: "+l"(loops));
+	"	mov lp_count, %0	\n"
+	"	lp  1f			\n"
+	"	nop			\n"
+	"1:				\n"
+	: : "r"(loops));
 }
 
 extern void __bad_udelay(void);


Patches currently in stable-queue which might be from vgupta@synopsys.com are

queue-4.8/arc-don-t-use-l-inline-asm-constraint.patch
queue-4.8/arc-mm-pae40-fix-crash-at-munmap.patch