linux-kernel - [PATCH v2 4/5] arm64: Introduce dummy version of asm/fiq.h

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Message-Id: <1409931198-22600-5-git-send-email-daniel.thompson@linaro.org>
Date:	Fri,  5 Sep 2014 16:33:17 +0100
From:	Daniel Thompson <daniel.thompson@...aro.org>
To:	Russell King <linux@....linux.org.uk>
Cc:	Daniel Thompson <daniel.thompson@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>
Subject: [PATCH v2 4/5] arm64: Introduce dummy version of asm/fiq.h

Drivers that are shared between arm and arm64 and which employ
FIQ on arm cannot include asm/fiq.h without #ifdef'ing. This patch
introduces a dummy version of asm/fiq.h to arm64 to avoid this.

Signed-off-by: Daniel Thompson <daniel.thompson@...aro.org>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will.deacon@....com>
---
 arch/arm64/include/asm/fiq.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 arch/arm64/include/asm/fiq.h

diff --git a/arch/arm64/include/asm/fiq.h b/arch/arm64/include/asm/fiq.h
new file mode 100644
index 0000000..909ec54
--- /dev/null
+++ b/arch/arm64/include/asm/fiq.h
@@ -0,0 +1,18 @@
+/*
+ * arch/arm64/include/asm/fiq.h
+ *
+ * Placeholder to reduce #ifdef'ing in shared arm/arm64 drivers.
+ */
+
+#ifndef __ASM_FIQ_H
+#define __ASM_FIQ_H
+
+/*
+ * This placeholder allows code of the following form to be simplified:
+ *
+ * #ifdef CONFIG_FIQ
+ * #include <asm/fiq.h>
+ * #endif
+ */
+
+#endif
-- 
1.9.3

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