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 4.4-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-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3c7c7a2fc8811bc7097479f69acf2527693d7562 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Date: Wed, 23 Nov 2016 17:43:17 -0800
Subject: ARC: Don't use "+l" inline asm constraint
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxx are
queue-4.4/arc-don-t-use-l-inline-asm-constraint.patch
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