linux-kernel - [PATCH RESEND] MIPS: Add __SANE_USERSPACE_TYPES_

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Date:	Tue,  6 May 2014 15:55:43 +0300
From:	Aaro Koskinen <aaro.koskinen@....com>
To:	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Cc:	Aaro Koskinen <aaro.koskinen@....com>
Subject: [PATCH RESEND] MIPS: Add __SANE_USERSPACE_TYPES__ to asm/types.h for LL64

Allow 64-bit userspace programs to use ll64 types. The define name
comes from commit 2c9c6ce0199a4d252e20c531cfdc9d24e39235c0 (powerpc:
Add __SANE_USERSPACE_TYPES__ to asm/types.h for LL64).

The patch allows to compile perf on MIPS64 and eliminates the following
warnings:

tests/attr.c:74:4: error: format '%llu' expects argument of type 'long
long unsigned int', but argument 6 has type '__u64' [-Werror=format=]

Signed-off-by: Aaro Koskinen <aaro.koskinen@....com>
---
 arch/mips/include/uapi/asm/types.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/mips/include/uapi/asm/types.h b/arch/mips/include/uapi/asm/types.h
index 7ac9d0b..f3dd9ff 100644
--- a/arch/mips/include/uapi/asm/types.h
+++ b/arch/mips/include/uapi/asm/types.h
@@ -14,9 +14,12 @@
 /*
  * We don't use int-l64.h for the kernel anymore but still use it for
  * userspace to avoid code changes.
+ *
+ * However, some user programs (e.g. perf) may not want this. They can
+ * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
  */
 #ifndef __KERNEL__
-# if _MIPS_SZLONG == 64
+# if _MIPS_SZLONG == 64 && !defined(__SANE_USERSPACE_TYPES__)
 #  include <asm-generic/int-l64.h>
 # else
 #  include <asm-generic/int-ll64.h>
-- 
1.9.1

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