linux-kernel - [PATCH 03/15] binfmt_flat: provide a default version of flat_get_relocate

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Message-Id: <20190610212015.9157-4-hch@lst.de>
Date:   Mon, 10 Jun 2019 23:20:03 +0200
From:   Christoph Hellwig <hch@....de>
To:     Greg Ungerer <gerg@...ux-m68k.org>
Cc:     Michal Simek <monstr@...str.eu>,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        uclinux-h8-devel@...ts.sourceforge.jp,
        linux-m68k@...ts.linux-m68k.org, linux-riscv@...ts.infradead.org,
        linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 03/15] binfmt_flat: provide a default version of flat_get_relocate_addr

This way only the two architectures that do masking need to provide
the helper.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 arch/arm/include/asm/flat.h    | 2 --
 arch/c6x/include/asm/flat.h    | 1 -
 arch/m68k/include/asm/flat.h   | 1 -
 arch/sh/include/asm/flat.h     | 1 -
 arch/xtensa/include/asm/flat.h | 1 -
 fs/binfmt_flat.c               | 4 ++++
 6 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index 576241d74704..a185fe023b60 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -30,6 +30,4 @@ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
 #endif
 }
 
-#define	flat_get_relocate_addr(rel)		(rel)
-
 #endif /* __ARM_FLAT_H__ */
diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
index ac87368efad1..c4d703b454c6 100644
--- a/arch/c6x/include/asm/flat.h
+++ b/arch/c6x/include/asm/flat.h
@@ -17,6 +17,5 @@ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
 	put_unaligned(addr, (__force u32 *)rp);
 	return 0;
 }
-#define flat_get_relocate_addr(rel)			(rel)
 
 #endif /* __ASM_C6X_FLAT_H */
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h
index 955617bb937b..217fa89c8e34 100644
--- a/arch/m68k/include/asm/flat.h
+++ b/arch/m68k/include/asm/flat.h
@@ -28,7 +28,6 @@ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
 	return put_user(addr, rp);
 #endif
 }
-#define	flat_get_relocate_addr(rel)		(rel)
 
 #define FLAT_PLAT_INIT(regs) \
 	do { \
diff --git a/arch/sh/include/asm/flat.h b/arch/sh/include/asm/flat.h
index 6f3b18679a98..0d520b4cc5ea 100644
--- a/arch/sh/include/asm/flat.h
+++ b/arch/sh/include/asm/flat.h
@@ -24,7 +24,6 @@ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
 	put_unaligned(addr, (__force u32 *)rp);
 	return 0;
 }
-#define	flat_get_relocate_addr(rel)		(rel)
 
 #define FLAT_PLAT_INIT(_r) \
   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
diff --git a/arch/xtensa/include/asm/flat.h b/arch/xtensa/include/asm/flat.h
index b1bc0d9a8d4e..a1d88aa3ef8a 100644
--- a/arch/xtensa/include/asm/flat.h
+++ b/arch/xtensa/include/asm/flat.h
@@ -17,6 +17,5 @@ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
 	put_unaligned(addr, (__force u32 *)rp);
 	return 0;
 }
-#define flat_get_relocate_addr(rel)			(rel)
 
 #endif /* __ASM_XTENSA_FLAT_H */
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index a4c0b245ab1f..c0e4535dc1ec 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -43,6 +43,10 @@
 #include <asm/cacheflush.h>
 #include <asm/page.h>
 
+#ifndef flat_get_relocate_addr
+#define flat_get_relocate_addr(rel)	(rel)
+#endif
+
 /****************************************************************************/
 
 /*
-- 
2.20.1