PCI: consolidate the PCI_SYSCALL symbol

Let architectures select the syscall support instead of duplicating the
kconfig entry.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/alpha/Kconfig

@@ -8,6 +8,7 @@ config ALPHA
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select FORCE_PCI if !ALPHA_JENSEN
 	select PCI_DOMAINS if PCI
+	select PCI_SYSCALL if PCI
 	select HAVE_AOUT
 	select HAVE_IDE
 	select HAVE_OPROFILE
@@ -322,9 +323,6 @@ config ISA_DMA_API
 	bool
 	default y
 
-config PCI_SYSCALL
-	def_bool PCI
-
 config ALPHA_NONAME
 	bool
 	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH

arch/arc/Kconfig

@@ -46,6 +46,7 @@ config ARC
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
+	select PCI_SYSCALL if PCI
 	select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
 
 config ARCH_HAS_CACHE_LINE_SIZE
@@ -550,7 +551,4 @@ config FORCE_MAX_ZONEORDER
 	default "12" if ARC_HUGEPAGE_16M
 	default "11"
 
-config PCI_SYSCALL
-	def_bool PCI
-
 source "kernel/power/Kconfig"

arch/arm/Kconfig

@@ -103,6 +103,7 @@ config ARM
 	select OF_RESERVED_MEM if OF
 	select OLD_SIGACTION
 	select OLD_SIGSUSPEND3
+	select PCI_SYSCALL if PCI
 	select PERF_USE_VMALLOC
 	select REFCOUNT_FULL
 	select RTC_LIB
@@ -1233,9 +1234,6 @@ config PCI_NANOENGINE
 	help
 	  Enable PCI on the BSE nanoEngine board.
 
-config PCI_SYSCALL
-	def_bool PCI
-
 config PCI_HOST_ITE8152
 	bool
 	depends on PCI && MACH_ARMCORE

arch/arm64/Kconfig

@@ -166,6 +166,7 @@ config ARM64
 	select OF_RESERVED_MEM
 	select PCI_DOMAINS_GENERIC if PCI
 	select PCI_ECAM if ACPI
+	select PCI_SYSCALL if PCI
 	select POWER_RESET
 	select POWER_SUPPLY
 	select REFCOUNT_FULL
@@ -289,9 +290,6 @@ config ARCH_PROC_KCORE_TEXT
 
 source "arch/arm64/Kconfig.platforms"
 
-config PCI_SYSCALL
-	def_bool PCI
-
 menu "Kernel Features"
 
 menu "ARM errata workarounds via the alternatives framework"

arch/ia64/Kconfig

@@ -16,6 +16,7 @@ config IA64
 	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
 	select FORCE_PCI if (!IA64_HP_SIM)
 	select PCI_DOMAINS if PCI
+	select PCI_SYSCALL if PCI
 	select HAVE_UNSTABLE_SCHED_CLOCK
 	select HAVE_EXIT_THREAD
 	select HAVE_IDE
@@ -545,9 +546,6 @@ if !IA64_HP_SIM
 
 menu "Bus options (PCI, PCMCIA)"
 
-config PCI_SYSCALL
-	def_bool PCI
-
 source "drivers/pcmcia/Kconfig"
 
 endmenu

arch/microblaze/Kconfig

@@ -37,6 +37,7 @@ config MICROBLAZE
 	select OF
 	select OF_EARLY_FLATTREE
 	select PCI_DOMAINS_GENERIC if PCI
+	select PCI_SYSCALL if PCI
 	select TRACING_SUPPORT
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
@@ -268,9 +269,6 @@ endmenu
 
 menu "Bus Options"
 
-config PCI_SYSCALL
-	def_bool PCI
-
 config PCI_XILINX
 	bool "Xilinx PCI host bridge support"
 	depends on PCI

arch/powerpc/Kconfig

@@ -237,6 +237,7 @@ config PPC
 	select OLD_SIGACTION			if PPC32
 	select OLD_SIGSUSPEND
 	select PCI_DOMAINS			if PCI
+	select PCI_SYSCALL			if PCI
 	select RTC_LIB
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
@@ -932,9 +933,6 @@ config FSL_GTM
 	help
 	  Freescale General-purpose Timers support
 
-config PCI_SYSCALL
-	def_bool PCI
-
 config PCI_8260
 	bool
 	depends on PCI && 8260

arch/sparc/Kconfig

@@ -39,6 +39,7 @@ config SPARC
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select MODULES_USE_ELF_RELA
+	select PCI_SYSCALL if PCI
 	select ODD_RT_SIGACTION
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
@@ -474,9 +475,6 @@ config SUN_LDOMS
 	  Say Y here is you want to support virtual devices via
 	  Logical Domains.
 
-config PCI_SYSCALL
-	def_bool PCI
-
 config PCIC_PCI
 	bool
 	depends on PCI && SPARC32 && !SPARC_LEON

drivers/pci/Kconfig

@@ -30,6 +30,9 @@ config PCI_DOMAINS_GENERIC
 	depends on PCI
 	select PCI_DOMAINS
 
+config PCI_SYSCALL
+	bool
+
 source "drivers/pci/pcie/Kconfig"
 
 config PCI_MSI