23 files changed, 4 insertions, 30 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index fad4e73a6..69fcfae90 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -207,9 +207,6 @@ config HAVE_DMA_ATTRS
 config HAVE_DMA_CONTIGUOUS
 	bool
 
-config USE_GENERIC_SMP_HELPERS
-	bool
-
 config GENERIC_SMP_IDLE_THREAD
        bool
 
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 837a1f2d8..2ad4dc3ba 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -522,7 +522,6 @@ config ARCH_MAY_HAVE_PC_FDC
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 591709947..6c7b1b36d 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -119,7 +119,6 @@ config ARC_PLAT_NEEDS_CPU_TO_DMA
 config SMP
 	bool "Symmetric Multi-Processing (Incomplete)"
 	default n
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 119a385b0..d500082af 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1768,7 +1768,6 @@ config SMP
 	depends on GENERIC_CLOCKEVENTS
 	depends on HAVE_SMP
 	depends on MMU
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ff50d39c3..8bf0afe14 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -353,7 +353,6 @@ config ARM64_64K_PAGES
 
 config SMP
 	bool "Symmetric Multi-Processing"
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU.  If
 	  you say N here, the kernel will run on single and
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a117652b5..ae27d499c 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -35,7 +35,6 @@ config BLACKFIN
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 	select GENERIC_SMP_IDLE_THREAD
 	select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 33a97929d..852b48742 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,7 +4,6 @@ comment "Linux Kernel Configuration for Hexagon"
 config HEXAGON
 	def_bool y
 	select HAVE_OPROFILE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
 	# select HAVE_HW_BREAKPOINT if PERF_EVENTS
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 1a2b7749b..26ac47433 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -344,7 +344,6 @@ config FORCE_MAX_ZONEORDER
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, say N.  If you have a system with more
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index bcd17b206..ff67f9a1a 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -275,7 +275,6 @@ source "kernel/Kconfig.preempt"
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index dcd944060..1647703a7 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -111,7 +111,6 @@ config METAG_META21
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on METAG_META21 && METAG_META21_MMU
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one thread running
 	  Linux. If you have a system with only one thread running Linux,
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e165f472e..e840816aa 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2179,7 +2179,6 @@ source "mm/Kconfig"
 config SMP
 	bool "Multi-Processing support"
 	depends on SYS_SUPPORTS_SMP
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 31b91602f..4cd645745 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -179,7 +179,6 @@ endmenu
 config SMP
 	bool "Symmetric multi-processing support"
 	default y
-	select USE_GENERIC_SMP_HELPERS
 	depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
 	---help---
 	  This enables support for systems with more than one CPU. If you have
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 6507dabdd..e1773e5d9 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -226,7 +226,6 @@ endchoice
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7f656f119..e44c3e6de 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -106,7 +106,6 @@ config PPC
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_OPROFILE
 	select HAVE_DEBUG_KMEMLEAK
 	select GENERIC_ATOMIC64 if PPC32
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d8d6eeca5..4fea05786 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -141,7 +141,6 @@ config S390
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
 	select SYSCTL_EXCEPTION_TRACE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select VIRT_CPU_ACCOUNTING
 
 config SCHED_OMIT_FRAME_POINTER
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ff90bc498..aed0ab120 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -699,7 +699,6 @@ config SECCOMP
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on SYS_SUPPORTS_SMP
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 3aa37669f..2e263ea9c 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -8,7 +8,6 @@ config TILE
 	select HAVE_KVM if !TILEGX
 	select GENERIC_FIND_FIRST_BIT
 	select SYSCTL_EXCEPTION_TRACE
-	select USE_GENERIC_SMP_HELPERS
 	select CC_OPTIMIZE_FOR_SIZE
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_GENERIC_HARDIRQS
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2a713f205..2ed383170 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -90,7 +90,6 @@ config X86
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CLOCKEVENTS_MIN_ADJUST
 	select IRQ_FORCED_THREADING
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_BPF_JIT if X86_64
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select CLKEVT_I8253
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 467c8de88..2b01c0b73 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -36,7 +36,7 @@ static void blk_done_softirq(struct softirq_action *h)
 	}
 }
 
-#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 static void trigger_softirq(void *data)
 {
 	struct request *rq = data;
@@ -71,7 +71,7 @@ static int raise_blk_irq(int cpu, struct request *rq)
 
 	return 1;
 }
-#else /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+#else /* CONFIG_SMP */
 static int raise_blk_irq(int cpu, struct request *rq)
 {
 	return 1;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 5efc5a647..277bd218b 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -287,7 +287,7 @@ static ssize_t
 queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
 {
 	ssize_t ret = -EINVAL;
-#if defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 	unsigned long val;
 
 	ret = queue_var_store(&val, page, count);
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 544da2d29..286b052bb 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -90,14 +90,10 @@ void kick_all_cpus_sync(void);
 /*
  * Generic and arch helpers
  */
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 void __init call_function_init(void);
 void generic_smp_call_function_single_interrupt(void);
 #define generic_smp_call_function_interrupt \
 	generic_smp_call_function_single_interrupt
-#else
-static inline void call_function_init(void) { }
-#endif
 
 /*
  * Call a function on all processors
diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 94fabd534..2a202a846 100644
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -55,4 +55,4 @@ config HZ
 	default 1000 if HZ_1000
 
 config SCHED_HRTICK
-	def_bool HIGH_RES_TIMERS && (!SMP || USE_GENERIC_SMP_HELPERS)
+	def_bool HIGH_RES_TIMERS
diff --git a/kernel/smp.c b/kernel/smp.c
index 7d1bf67e3..faf14fd57 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -15,7 +15,6 @@
 
 #include "smpboot.h"
 
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 enum {
 	CSD_FLAG_LOCK		= 0x01,
 };
@@ -515,7 +514,6 @@ int smp_call_function(smp_call_func_t func, void *info, int wait)
 	return 0;
 }
 EXPORT_SYMBOL(smp_call_function);
-#endif /* USE_GENERIC_SMP_HELPERS */
 
 /* Setup configured maximum number of CPUs to activate */
 unsigned int setup_max_cpus = NR_CPUS;