binfmt_flat: remove flat_old_ram_flag

Instead add a Kconfig variable that only h8300 selects.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NGreg Ungerer <gerg@linux-m68k.org>

arch/arm/include/asm/flat.h

@@ -9,7 +9,6 @@
 #include <linux/uaccess.h>
 
 #define	flat_argvp_envp_on_stack()		1
-#define	flat_old_ram_flag(flags)		(flags)
 
 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
 					u32 *addr, u32 *persistent)

arch/c6x/include/asm/flat.h

@@ -5,7 +5,6 @@
 #include <asm/unaligned.h>
 
 #define flat_argvp_envp_on_stack()			0
-#define flat_old_ram_flag(flags)			(flags)
 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
 					u32 *addr, u32 *persistent)
 {

arch/h8300/Kconfig

@@ -2,6 +2,7 @@
 config H8300
         def_bool y
 	select ARCH_32BIT_OFF_T
+	select BINFMT_FLAT_OLD_ALWAYS_RAM
 	select GENERIC_ATOMIC64
 	select HAVE_UID16
 	select VIRT_TO_BUS

arch/h8300/include/asm/flat.h

@@ -9,7 +9,6 @@
 #include <asm/unaligned.h>
 
 #define	flat_argvp_envp_on_stack()		1
-#define	flat_old_ram_flag(flags)		1
 
 /*
  * on the H8 a couple of the relocations have an instruction in the

arch/m68k/include/asm/flat.h

@@ -9,7 +9,6 @@
 #include <linux/uaccess.h>
 
 #define	flat_argvp_envp_on_stack()		1
-#define	flat_old_ram_flag(flags)		(flags)
 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
 					u32 *addr, u32 *persistent)
 {

arch/microblaze/include/asm/flat.h

@@ -14,7 +14,6 @@
 #include <asm/unaligned.h>
 
 #define	flat_argvp_envp_on_stack()	0
-#define	flat_old_ram_flag(flags)	(flags)
 
 /*
  * Microblaze works a little differently from other arches, because

arch/sh/include/asm/flat.h

@@ -12,7 +12,6 @@
 #include <asm/unaligned.h>
 
 #define	flat_argvp_envp_on_stack()		0
-#define	flat_old_ram_flag(flags)		(flags)
 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
 					u32 *addr, u32 *persistent)
 {

arch/xtensa/include/asm/flat.h

@@ -5,7 +5,6 @@
 #include <asm/unaligned.h>
 
 #define flat_argvp_envp_on_stack()			0
-#define flat_old_ram_flag(flags)			(flags)
 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
 					u32 *addr, u32 *persistent)
 {

fs/Kconfig.binfmt

@@ -97,6 +97,9 @@ config BINFMT_FLAT
 	help
 	  Support uClinux FLAT format binaries.
 
+config BINFMT_FLAT_OLD_ALWAYS_RAM
+	bool
+
 config BINFMT_ZFLAT
 	bool "Enable ZFLAT support"
 	depends on BINFMT_FLAT

fs/binfmt_flat.c

@@ -488,7 +488,8 @@ static int load_flat_file(struct linux_binprm *bprm,
 	 * fix up the flags for the older format,  there were all kinds
 	 * of endian hacks,  this only works for the simple cases
 	 */
-	if (rev == OLD_FLAT_VERSION && flat_old_ram_flag(flags))
+	if (rev == OLD_FLAT_VERSION &&
+	   (flags || IS_ENABLED(CONFIG_BINFMT_FLAT_OLD_ALWAYS_RAM)))
 		flags = FLAT_FLAG_RAM;
 
 #ifndef CONFIG_BINFMT_ZFLAT