idle: Remove GENERIC_IDLE_LOOP config switch

All archs are converted over. Remove the config switch and the
fallback code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

32 files changed, 0 insertions, 41 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index a699f3767be4..1455579791ec 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -216,9 +216,6 @@ config USE_GENERIC_SMP_HELPERS
 config GENERIC_SMP_IDLE_THREAD
        bool
 
-config GENERIC_IDLE_LOOP
-       bool
-
 # Select if arch init_task initializer is different to init/init_task.c
 config ARCH_INIT_TASK
        bool
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 60469820a6c5..8a33ba01301f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -17,7 +17,6 @@ config ALPHA
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index b006977a1516..e6f4eca09ee3 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -14,7 +14,6 @@ config ARC
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_FIND_FIRST_BIT
-	select GENERIC_IDLE_LOOP
 	# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
 	select GENERIC_IRQ_SHOW
 	select GENERIC_KERNEL_EXECVE
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 128551fcc6dd..fcedd612c54c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -15,7 +15,6 @@ config ARM
 	select GENERIC_IRQ_SHOW
 	select GENERIC_PCI_IOMAP
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select GENERIC_IDLE_POLL_SETUP
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index ca2c871795c5..9b6d19f74078 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -9,7 +9,6 @@ config ARM64
 	select CLONE_BACKWARDS
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
-	select GENERIC_IDLE_LOOP
 	select GENERIC_IOMAP
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index bbecda4c3373..c1a868d398bd 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -10,7 +10,6 @@ config AVR32
 	select VIRT_TO_BUS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_ATOMIC64
-	select GENERIC_IDLE_LOOP
 	select HARDIRQS_SW_RESEND
 	select GENERIC_IRQ_SHOW
 	select ARCH_HAVE_CUSTOM_GPIO_H
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 3d769a7c4941..c3f2e0bc644a 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -41,7 +41,6 @@ config BLACKFIN
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index af2aa4b44140..f6a3648f5ec3 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -18,7 +18,6 @@ config C6X
 	select OF_EARLY_FLATTREE
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
-	select GENERIC_IDLE_LOOP
 
 config MMU
 	def_bool n
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 1dd36355a3cd..06dd026533e3 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -48,7 +48,6 @@ config CRIS
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IOMAP
 	select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
-	select GENERIC_IDLE_LOOP
 	select GENERIC_CMOS_UPDATE
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS2
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 0d998db2039e..2ce731f9aa4d 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -8,7 +8,6 @@ config FRV
 	select HAVE_GENERIC_HARDIRQS
 	select VIRT_TO_BUS
 	select GENERIC_IRQ_SHOW
-	select GENERIC_IDLE_LOOP
 	select HAVE_DEBUG_BUGVERBOSE
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_CPU_DEVICES
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 5374975fe800..79250de1b12a 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -8,7 +8,6 @@ config H8300
 	select VIRT_TO_BUS
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select GENERIC_IRQ_SHOW
-	select GENERIC_IDLE_LOOP
 	select GENERIC_CPU_DEVICES
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 6e3710e84a6c..e4decc6b8947 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -24,7 +24,6 @@ config HEXAGON
 	select NO_IOPORT
 	select GENERIC_IOMAP
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select STACKTRACE_SUPPORT
 	select KTIME_SCALAR
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index e0b39c3cb789..9a02f71c6b1f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -35,7 +35,6 @@ config IA64
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_IOMAP
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select ARCH_INIT_TASK
 	select ARCH_TASK_STRUCT_ALLOCATOR
 	select ARCH_THREAD_INFO_ALLOCATOR
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index af814fe478ae..bcd17b206571 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -13,7 +13,6 @@ config M32R
 	select VIRT_TO_BUS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
-	select GENERIC_IDLE_LOOP
 	select GENERIC_ATOMIC64
 	select ARCH_USES_GETTIMEOFFSET
 	select MODULES_USE_ELF_RELA
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 41859405a853..6de813370b8c 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -6,7 +6,6 @@ config M68K
 	select HAVE_DEBUG_BUGVERBOSE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
-	select GENERIC_IDLE_LOOP
 	select GENERIC_ATOMIC64
 	select HAVE_UID16
 	select VIRT_TO_BUS
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 3164f6cebe2b..afc8973d1488 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -7,7 +7,6 @@ config METAG
 	select EMBEDDED
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
-	select GENERIC_IDLE_LOOP
 	select GENERIC_IRQ_SHOW
 	select GENERIC_SMP_IDLE_THREAD
 	select HAVE_64BIT_ALIGNED_ACCESS
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 0bb0d519a233..a827057c7927 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -26,7 +26,6 @@ config MICROBLAZE
 	select GENERIC_CPU_DEVICES
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
-	select GENERIC_IDLE_LOOP
 	select GENERIC_IDLE_POLL_SETUP
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e1a3d02af637..51244bf97271 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -34,7 +34,6 @@ config MIPS
 	select HAVE_MEMBLOCK_NODE_MAP
 	select ARCH_DISCARD_MEMBLOCK
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select BUILDTIME_EXTABLE_SORT
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CMOS_UPDATE
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index ae7158b69c9c..428da175d073 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -13,7 +13,6 @@ config MN10300
 	select MODULES_USE_ELF_RELA
 	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
-	select GENERIC_IDLE_LOOP
 
 config AM33_2
 	def_bool n
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e111b5200cd9..9ab3bf2eca8d 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -21,7 +21,6 @@ config OPENRISC
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
-	select GENERIC_IDLE_LOOP
 	select MODULES_USE_ELF_RELA
 
 config MMU
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 0821e702d03f..0339181bf3ac 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,6 @@ config PARISC
 	select GENERIC_PCI_IOMAP
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select GENERIC_STRNCPY_FROM_USER
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 19de32c52da5..ea5bb045983a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -133,7 +133,6 @@ config PPC
 	select HAVE_ARCH_JUMP_LABEL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_TIME_VSYSCALL_OLD
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 749513d73e47..eb8fb629f00b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -97,7 +97,6 @@ config S390
 	select CLONE_BACKWARDS2
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES if !SMP
-	select GENERIC_IDLE_LOOP
 	select GENERIC_KERNEL_THREAD
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL_OLD
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index eaac45de65be..c8def8bc9020 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -11,7 +11,6 @@ config SCORE
        select ARCH_DISCARD_MEMBLOCK
        select GENERIC_CPU_DEVICES
        select GENERIC_CLOCKEVENTS
-       select GENERIC_IDLE_LOOP
        select HAVE_MOD_ARCH_SPECIFIC
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_REL
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 0917fc3f39c0..1ea597c6497a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -33,7 +33,6 @@ config SUPERH
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_SHOW
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select GENERIC_IDLE_POLL_SETUP
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index ee5eacc5a649..3d361f236308 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -37,7 +37,6 @@ config SPARC
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CLOCKEVENTS
-	select GENERIC_IDLE_LOOP
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select MODULES_USE_ELF_RELA
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 85b2edeade31..25877aebc685 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -22,7 +22,6 @@ config TILE
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
-	select GENERIC_IDLE_LOOP
 
 # FIXME: investigate whether we need/want these options.
 #	select HAVE_IOREMAP_PROT
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 57834067a511..bceee6623b00 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -12,7 +12,6 @@ config UML
 	select GENERIC_CPU_DEVICES
 	select GENERIC_IO
 	select GENERIC_CLOCKEVENTS
-	select GENERIC_IDLE_LOOP
 	select TTY # Needed for line.c
 
 config MMU
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index e12678daaed1..2943e3acdf0c 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -17,7 +17,6 @@ config UNICORE32
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IOMAP
 	select MODULES_USE_ELF_REL
-	select GENERIC_IDLE_LOOP
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 734152d85fd0..fcf293994992 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,7 +97,6 @@ config X86
 	select GENERIC_IOMAP
 	select DCACHE_WORD_ACCESS
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_IDLE_LOOP
 	select ARCH_WANT_IPC_PARSE_VERSION if X86_32
 	select HAVE_ARCH_SECCOMP_FILTER
 	select BUILDTIME_EXTABLE_SORT
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e0144ff4624d..b09de49dbec5 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -19,7 +19,6 @@ config XTENSA
 	select CLONE_BACKWARDS
 	select IRQ_DOMAIN
 	select HAVE_OPROFILE
-	select GENERIC_IDLE_LOOP
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
 	  primarily for embedded systems.  These processors are both
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index 54c320383934..168cf407a254 100644
--- a/kernel/cpu/idle.c
+++ b/kernel/cpu/idle.c
@@ -10,13 +10,6 @@
 
 #include <trace/events/power.h>
 
-#ifndef CONFIG_GENERIC_IDLE_LOOP
-void cpu_startup_entry(enum cpuhp_state state)
-{
-	cpu_idle();
-}
-#else
-
 static int __read_mostly cpu_idle_force_poll;
 
 void cpu_idle_poll_ctrl(bool enable)
@@ -112,4 +105,3 @@ void cpu_startup_entry(enum cpuhp_state state)
 	arch_cpu_idle_prepare();
 	cpu_idle_loop();
 }
-#endif