This is a note to let you know that I've just added the patch titled
ARCv2: fix local_save_flags
to the 4.7-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-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cd5d38b052384daa2893e9a1d94900d5a20ed4b5 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Date: Fri, 30 Sep 2016 13:27:25 -0700
Subject: ARCv2: fix local_save_flags
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxxx are
queue-4.7/arcv2-intc-use-kflag-if-status32.ie-must-be-reset.patch
queue-4.7/arcv2-fix-local_save_flags.patch
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