linux-kernel - [PATCH 11/24] ARM64: Add is_ilp32_compat_task and is_ilp32_compat

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Message-Id: <1409779158-30963-12-git-send-email-apinski@cavium.com>
Date:	Wed,  3 Sep 2014 14:19:05 -0700
From:	Andrew Pinski <apinski@...ium.com>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	pinskia@...il.com
Cc:	Andrew Pinski <apinski@...ium.com>
Subject: [PATCH 11/24] ARM64: Add is_ilp32_compat_task and is_ilp32_compat_thread

This patch adds the functions which returns if the current task is an
ILP32 task and one returns if the thread is an ILP32 thread.

Signed-off-by: Andrew Pinski <apinski@...ium.com>
---
 arch/arm64/include/asm/compat.h |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 8fcfb29..9082b27 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -332,5 +332,27 @@ static inline int is_a32_compat_thread(struct thread_info *thread)
 }
 #endif
 
+#ifdef CONFIG_ARM64_ILP32
+static inline int is_ilp32_compat_task(void)
+{
+	return test_thread_flag(TIF_32BIT) && !is_a32_compat_task();
+}
+static inline int is_ilp32_compat_thread(struct thread_info *thread)
+{
+	return test_ti_thread_flag(thread, TIF_32BIT) &&
+	       !is_a32_compat_thread(thread);
+}
+#else
+static inline int is_ilp32_compat_task(void)
+{
+	return 0;
+}
+static inline int is_ilp32_compat_thread(struct thread_info *thread)
+{
+	return 0;
+}
+#endif
+
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_COMPAT_H */
-- 
1.7.2.5

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