[PATCH] ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION

From: Will Deacon
Date: Thu Jul 12 2012 - 12:56:40 EST

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Rather than #define the options manually in the architecture code,
add Kconfig options for them and select them there instead. This also
allows us to select the compat IPC version parsing automatically for
platforms using the old compat IPC interface.

Reported-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
arch/Kconfig | 7 +++++++
arch/alpha/Kconfig | 1 +
arch/alpha/include/asm/unistd.h | 1 -
arch/arm/Kconfig | 1 +
arch/arm/include/asm/unistd.h | 1 -
arch/avr32/Kconfig | 1 +
arch/avr32/include/asm/unistd.h | 1 -
arch/blackfin/Kconfig | 1 +
arch/blackfin/include/asm/unistd.h | 1 -
arch/cris/Kconfig | 1 +
arch/cris/include/asm/unistd.h | 1 -
arch/frv/Kconfig | 1 +
arch/frv/include/asm/unistd.h | 1 -
arch/h8300/Kconfig | 1 +
arch/h8300/include/asm/unistd.h | 1 -
arch/m32r/Kconfig | 1 +
arch/m32r/include/asm/unistd.h | 1 -
arch/m68k/Kconfig | 1 +
arch/m68k/include/asm/unistd.h | 1 -
arch/microblaze/Kconfig | 1 +
arch/microblaze/include/asm/unistd.h | 1 -
arch/mips/Kconfig | 1 +
arch/mips/include/asm/unistd.h | 1 -
arch/mn10300/Kconfig | 1 +
arch/mn10300/include/asm/unistd.h | 1 -
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/unistd.h | 1 -
arch/s390/Kconfig | 1 +
arch/s390/include/asm/unistd.h | 1 -
arch/sh/Kconfig | 1 +
arch/sh/include/asm/unistd.h | 1 -
arch/sparc/Kconfig | 1 +
arch/sparc/include/asm/unistd.h | 1 -
arch/x86/Kconfig | 1 +
arch/x86/include/asm/unistd.h | 1 -
include/linux/compat.h | 1 -
ipc/compat.c | 2 +-
ipc/util.c | 4 ++--
ipc/util.h | 2 +-
39 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 8c3d957..72f2fa1 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -248,7 +248,14 @@ config HAVE_CMPXCHG_LOCAL
config HAVE_CMPXCHG_DOUBLE
bool

+config ARCH_WANT_IPC_PARSE_VERSION
+ bool
+
+config ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+ bool
+
config ARCH_WANT_OLD_COMPAT_IPC
+ select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
bool

config HAVE_ARCH_SECCOMP_FILTER
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3de74c9..1c2172b 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -17,6 +17,7 @@ config ALPHA
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CMOS_UPDATE
+ select ARCH_WANT_IPC_PARSE_VERSION
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index d1f23b7..633b23b 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -470,7 +470,6 @@

#define NR_SYSCALLS 504

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a91009c..66812bb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -45,6 +45,7 @@ config ARM
select GENERIC_SMP_IDLE_THREAD
select KTIME_SCALAR
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
+ select ARCH_WANT_IPC_PARSE_VERSION
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 512cd14..0cab47d 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -446,7 +446,6 @@

#ifdef __KERNEL__

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 71d38c7..5602831 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -14,6 +14,7 @@ config AVR32
select ARCH_HAVE_CUSTOM_GPIO_H
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
+ select ARCH_WANT_IPC_PARSE_VERSION
help
AVR32 is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h
index f714544..1358e36 100644
--- a/arch/avr32/include/asm/unistd.h
+++ b/arch/avr32/include/asm/unistd.h
@@ -318,7 +318,6 @@
/* SMP stuff */
#define __IGNORE_getcpu

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index fef96f4..abe8f3f 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -40,6 +40,7 @@ config BLACKFIN
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
select GENERIC_SMP_IDLE_THREAD
select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
+ select ARCH_WANT_IPC_PARSE_VERSION

config GENERIC_CSUM
def_bool y
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 3287222..5b2a074 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -434,7 +434,6 @@
#define __IGNORE_getcpu

#ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index bb34465..ea877a0 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -46,6 +46,7 @@ config CRIS
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
select GENERIC_CMOS_UPDATE
+ select ARCH_WANT_IPC_PARSE_VERSION

config HZ
int
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index f921b8b..51873a4 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -347,7 +347,6 @@

#include <arch/unistd.h>

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index a685910..971c0a1 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -9,6 +9,7 @@ config FRV
select GENERIC_IRQ_SHOW
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CPU_DEVICES
+ select ARCH_WANT_IPC_PARSE_VERSION

config ZONE_DMA
bool
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index a569dff..67f23a3 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -349,7 +349,6 @@

#define NR_syscalls 338

-#define __ARCH_WANT_IPC_PARSE_VERSION
/* #define __ARCH_WANT_OLD_READDIR */
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 56e890d..82379089 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -5,6 +5,7 @@ config H8300
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
+ select ARCH_WANT_IPC_PARSE_VERSION

config SYMBOL_PREFIX
string
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
index 7185113..5cd8828 100644
--- a/arch/h8300/include/asm/unistd.h
+++ b/arch/h8300/include/asm/unistd.h
@@ -331,7 +331,6 @@

#define NR_syscalls 321

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index b638d5b..828e5af 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -12,6 +12,7 @@ config M32R
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
select ARCH_USES_GETTIMEOFFSET
+ select ARCH_WANT_IPC_PARSE_VERSION

config SBUS
bool
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 3e1db56..d5e66a4 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -336,7 +336,6 @@

#define NR_syscalls 326

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 1471201..baecf8b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -11,6 +11,7 @@ config M68K
select GENERIC_STRNLEN_USER if MMU
select FPU if MMU
select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
+ select ARCH_WANT_IPC_PARSE_VERSION

config RWSEM_GENERIC_SPINLOCK
bool
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index ea0b502..045cfd6 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -357,7 +357,6 @@

#define NR_syscalls 347

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 0bf4423..b5ebd9f 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -23,6 +23,7 @@ config MICROBLAZE
select GENERIC_CPU_DEVICES
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
+ select ARCH_WANT_IPC_PARSE_VERSION

config SWAP
def_bool n
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index d20ffbc..6985e6e 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -400,7 +400,6 @@
#ifdef __KERNEL__
#ifndef __ASSEMBLY__

-#define __ARCH_WANT_IPC_PARSE_VERSION
/* #define __ARCH_WANT_OLD_READDIR */
/* #define __ARCH_WANT_OLD_STAT */
#define __ARCH_WANT_STAT64
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 09ab87e..e6da9cb 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -34,6 +34,7 @@ config MIPS
select BUILDTIME_EXTABLE_SORT
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE
+ select ARCH_WANT_IPC_PARSE_VERSION

menu "Machine selection"

diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index d8dad53..bebbde0 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -1034,7 +1034,6 @@
#ifndef __ASSEMBLY__

#define __ARCH_OMIT_COMPAT_SYS_GETDENTS64
-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 687f9b4..17f0ada 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -7,6 +7,7 @@ config MN10300
select HAVE_ARCH_KGDB
select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
select GENERIC_CLOCKEVENTS
+ select ARCH_WANT_IPC_PARSE_VERSION

config AM33_2
def_bool n
diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h
index 9051f92..866eb14 100644
--- a/arch/mn10300/include/asm/unistd.h
+++ b/arch/mn10300/include/asm/unistd.h
@@ -358,7 +358,6 @@
/*
* specify the deprecated syscalls we want to support on this arch
*/
-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 050cb37..e5491e3 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -137,6 +137,7 @@ config PPC
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select ARCH_WANT_IPC_PARSE_VERSION

config EARLY_PRINTK
bool
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index d3d1b5e..bd377a3 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -389,7 +389,6 @@
#include <linux/compiler.h>
#include <linux/linkage.h>

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a39b469..3c6e6b2 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -121,6 +121,7 @@ config S390
select GENERIC_TIME_VSYSCALL
select GENERIC_CLOCKEVENTS
select KTIME_SCALAR if 32BIT
+ select ARCH_WANT_IPC_PARSE_VERSION

config SCHED_OMIT_FRAME_POINTER
def_bool y
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 8a8008f..7c89143 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -390,7 +390,6 @@
#define __IGNORE_recvmmsg
#define __IGNORE_sendmmsg

-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 31d9db7..fbe39e1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -34,6 +34,7 @@ config SUPERH
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select ARCH_WANT_IPC_PARSE_VERSION
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h
index e800a38..7bc6707 100644
--- a/arch/sh/include/asm/unistd.h
+++ b/arch/sh/include/asm/unistd.h
@@ -6,7 +6,6 @@
# endif

# define __ARCH_WANT_SYS_RT_SIGSUSPEND
-# define __ARCH_WANT_IPC_PARSE_VERSION
# define __ARCH_WANT_OLD_READDIR
# define __ARCH_WANT_OLD_STAT
# define __ARCH_WANT_STAT64
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index e74ff13..9245798 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -36,6 +36,7 @@ config SPARC
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select ARCH_WANT_IPC_PARSE_VERSION

config SPARC32
def_bool !64BIT
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index c7cb0af..fb26934 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -423,7 +423,6 @@
#endif

#ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c70684f..e906467 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -95,6 +95,7 @@ config X86
select KTIME_SCALAR if X86_32
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select ARCH_WANT_IPC_PARSE_VERSION if X86_32

config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS || UPROBES)
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 4437001..0d9776e 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -15,7 +15,6 @@
# ifdef CONFIG_X86_32

# include <asm/unistd_32.h>
-# define __ARCH_WANT_IPC_PARSE_VERSION
# define __ARCH_WANT_STAT64
# define __ARCH_WANT_SYS_IPC
# define __ARCH_WANT_SYS_OLD_MMAP
diff --git a/include/linux/compat.h b/include/linux/compat.h
index f2b8fe2..09b28b7 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -256,7 +256,6 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
compat_size_t __user *len_ptr);

#ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
-#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
long compat_sys_semctl(int first, int second, int third, void __user *uptr);
long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
diff --git a/ipc/compat.c b/ipc/compat.c
index 20f92b2..ad9518e 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -118,7 +118,7 @@ extern int sem_ctls[];

static inline int compat_ipc_parse_version(int *cmd)
{
-#ifdef __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
int version = *cmd & IPC_64;

/* this is tricky: architectures that have support for the old
diff --git a/ipc/util.c b/ipc/util.c
index 75261a3..eb07fd3 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -804,7 +804,7 @@ out_up:
return ERR_PTR(err);
}

-#ifdef __ARCH_WANT_IPC_PARSE_VERSION
+#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION

/**
@@ -826,7 +826,7 @@ int ipc_parse_version (int *cmd)
}
}

-#endif /* __ARCH_WANT_IPC_PARSE_VERSION */
+#endif /* CONFIG_ARCH_WANT_IPC_PARSE_VERSION */

#ifdef CONFIG_PROC_FS
struct ipc_proc_iter {
diff --git a/ipc/util.h b/ipc/util.h
index 6f5c20b..850ef3e 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -130,7 +130,7 @@ struct kern_ipc_perm *ipcctl_pre_down(struct ipc_namespace *ns,
struct ipc_ids *ids, int id, int cmd,
struct ipc64_perm *perm, int extra_perm);

-#ifndef __ARCH_WANT_IPC_PARSE_VERSION
+#ifndef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
/* On IA-64, we always use the "64-bit version" of the IPC structures. */
# define ipc_parse_version(cmd) IPC_64
#else
--
1.7.4.1

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