Patch "ARCv2: fix local_save_flags" has been added to the 4.8-stable tree

Patch "ARCv2: fix local_save_flags" 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

    ARCv2: fix local_save_flags

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:
     arcv2-fix-local_save_flags.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 cd5d38b052384daa2893e9a1d94900d5a20ed4b5 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 30 Sep 2016 13:27:25 -0700
Subject: ARCv2: fix local_save_flags

From: Vineet Gupta <vgupta@synopsys.com>

commit cd5d38b052384daa2893e9a1d94900d5a20ed4b5 upstream.

Commit d9676fa152c83b ("ARCv2: Enable LOCKDEP"), changed
local_save_flags() to not return raw STATUS32 but encoded in the form
such that it could be fed directly to CLRI/SETI instructions.
However the STATUS32.E[] was not captured correctly as it corresponds to
bits [4:1] in the register and not [3:0]

Fixes: d9676fa152c83b ("ARCv2: Enable LOCKDEP")
Cc: Evgeny Voevodin <evgeny.voevodin@intel.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arc/include/asm/irqflags-arcv2.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arc/include/asm/irqflags-arcv2.h
+++ b/arch/arc/include/asm/irqflags-arcv2.h
@@ -112,7 +112,7 @@ static inline long arch_local_save_flags
 	 */
 	temp = (1 << 5) |
 		((!!(temp & STATUS_IE_MASK)) << CLRI_STATUS_IE_BIT) |
-		(temp & CLRI_STATUS_E_MASK);
+		((temp >> 1) & CLRI_STATUS_E_MASK);
 	return temp;
 }
 


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

queue-4.8/arcv2-intc-use-kflag-if-status32.ie-must-be-reset.patch
queue-4.8/arcv2-fix-local_save_flags.patch