linux-kernel - [PATCH 5.2 337/413] arm64: irqflags: Add condition flags to inline asm clobber list

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Message-Id: <20190724191759.928890805@linuxfoundation.org>
Date:   Wed, 24 Jul 2019 21:20:28 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Marc Zyngier <marc.zyngier@....com>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Julien Thierry <julien.thierry@....com>,
        Catalin Marinas <catalin.marinas@....com>
Subject: [PATCH 5.2 337/413] arm64: irqflags: Add condition flags to inline asm clobber list

From: Julien Thierry <julien.thierry@....com>

commit f57065782f245ca96f1472209a485073bbc11247 upstream.

Some of the inline assembly instruction use the condition flags and need
to include "cc" in the clobber list.

Fixes: 4a503217ce37 ("arm64: irqflags: Use ICC_PMR_EL1 for interrupt masking")
Cc: <stable@...r.kernel.org> # 5.1.x-
Suggested-by: Marc Zyngier <marc.zyngier@....com>
Cc: Will Deacon <will.deacon@....com>
Reviewed-by: Marc Zyngier <marc.zyngier@....com>
Acked-by: Mark Rutland <mark.rutland@....com>
Signed-off-by: Julien Thierry <julien.thierry@....com>
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm64/include/asm/irqflags.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm64/include/asm/irqflags.h
+++ b/arch/arm64/include/asm/irqflags.h
@@ -81,7 +81,7 @@ static inline unsigned long arch_local_s
 			ARM64_HAS_IRQ_PRIO_MASKING)
 		: "=&r" (flags), "+r" (daif_bits)
 		: "r" ((unsigned long) GIC_PRIO_IRQOFF)
-		: "memory");
+		: "cc", "memory");
 
 	return flags;
 }
@@ -125,7 +125,7 @@ static inline int arch_irqs_disabled_fla
 			ARM64_HAS_IRQ_PRIO_MASKING)
 		: "=&r" (res)
 		: "r" ((int) flags)
-		: "memory");
+		: "cc", "memory");
 
 	return res;
 }