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From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: <linux-snps-arc@lists.infradead.org>
Cc: <linux-kernel@vger.kernel.org>,
	Vineet Gupta <Vineet.Gupta1@synopsys.com>,
	Evgeny Voevodin <evgeny.voevodin@intel.com>
Subject: [PATCH] ARCv2: fix local_save_flags
Date: Fri, 30 Sep 2016 14:11:26 -0700	[thread overview]
Message-ID: <1475269886-10832-1-git-send-email-vgupta@synopsys.com> (raw)

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

diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h
index d1ec7f6b31e0..e880dfa3fcd3 100644
--- 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(void)
 	 */
 	temp = (1 << 5) |
 		((!!(temp & STATUS_IE_MASK)) << CLRI_STATUS_IE_BIT) |
-		(temp & CLRI_STATUS_E_MASK);
+		((temp >> 1) & CLRI_STATUS_E_MASK);
 	return temp;
 }
 
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: Vineet.Gupta1@synopsys.com (Vineet Gupta)
To: linux-snps-arc@lists.infradead.org
Subject: [PATCH] ARCv2: fix local_save_flags
Date: Fri, 30 Sep 2016 14:11:26 -0700	[thread overview]
Message-ID: <1475269886-10832-1-git-send-email-vgupta@synopsys.com> (raw)

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 at intel.com>
Signed-off-by: Vineet Gupta <vgupta at synopsys.com>
---
 arch/arc/include/asm/irqflags-arcv2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h
index d1ec7f6b31e0..e880dfa3fcd3 100644
--- 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(void)
 	 */
 	temp = (1 << 5) |
 		((!!(temp & STATUS_IE_MASK)) << CLRI_STATUS_IE_BIT) |
-		(temp & CLRI_STATUS_E_MASK);
+		((temp >> 1) & CLRI_STATUS_E_MASK);
 	return temp;
 }
 
-- 
2.7.4

             reply	other threads:[~2016-09-30 21:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-30 21:11 Vineet Gupta [this message]
2016-09-30 21:11 ` [PATCH] ARCv2: fix local_save_flags Vineet Gupta

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