All architecures use memblock for early memory management. There is no need
for the CONFIG_HAVE_MEMBLOCK configuration option.

Signed-off-by: Mike Rapoport <r...@linux.vnet.ibm.com>
---
 arch/alpha/Kconfig                  |   1 -
 arch/arc/Kconfig                    |   1 -
 arch/arm/Kconfig                    |   1 -
 arch/arm64/Kconfig                  |   1 -
 arch/c6x/Kconfig                    |   1 -
 arch/h8300/Kconfig                  |   1 -
 arch/hexagon/Kconfig                |   1 -
 arch/ia64/Kconfig                   |   1 -
 arch/m68k/Kconfig                   |   1 -
 arch/microblaze/Kconfig             |   1 -
 arch/mips/Kconfig                   |   1 -
 arch/nds32/Kconfig                  |   1 -
 arch/nios2/Kconfig                  |   1 -
 arch/openrisc/Kconfig               |   1 -
 arch/parisc/Kconfig                 |   1 -
 arch/powerpc/Kconfig                |   1 -
 arch/riscv/Kconfig                  |   1 -
 arch/s390/Kconfig                   |   1 -
 arch/sh/Kconfig                     |   1 -
 arch/sparc/Kconfig                  |   1 -
 arch/um/Kconfig                     |   1 -
 arch/unicore32/Kconfig              |   1 -
 arch/x86/Kconfig                    |   1 -
 arch/xtensa/Kconfig                 |   1 -
 drivers/of/fdt.c                    |   2 -
 drivers/of/of_reserved_mem.c        |  13 +----
 drivers/staging/android/ion/Kconfig |   2 +-
 fs/pstore/Kconfig                   |   1 -
 include/linux/bootmem.h             | 112 ------------------------------------
 include/linux/memblock.h            |   2 -
 include/linux/mm.h                  |   2 +-
 lib/Kconfig.debug                   |   3 +-
 mm/Kconfig                          |   5 +-
 mm/Makefile                         |   2 +-
 mm/nobootmem.c                      |   4 --
 mm/page_alloc.c                     |   4 +-
 36 files changed, 8 insertions(+), 168 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 04de6be..5b4f883 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -31,7 +31,6 @@ config ALPHA
        select ODD_RT_SIGACTION
        select OLD_SIGSUSPEND
        select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
-       select HAVE_MEMBLOCK
        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/arc/Kconfig b/arch/arc/Kconfig
index 04ebead..5260440 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -37,7 +37,6 @@ config ARC
        select HAVE_KERNEL_LZMA
        select HAVE_KPROBES
        select HAVE_KRETPROBES
-       select HAVE_MEMBLOCK
        select HAVE_MOD_ARCH_SPECIFIC
        select HAVE_OPROFILE
        select HAVE_PERF_EVENTS
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a961d70..33f4653 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -82,7 +82,6 @@ config ARM
        select HAVE_KERNEL_XZ
        select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
        select HAVE_KRETPROBES if (HAVE_KPROBES)
-       select HAVE_MEMBLOCK
        select HAVE_MOD_ARCH_SPECIFIC
        select HAVE_NMI
        select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1795eaa..23ae619 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -134,7 +134,6 @@ config ARM64
        select HAVE_GENERIC_DMA_COHERENT
        select HAVE_HW_BREAKPOINT if PERF_EVENTS
        select HAVE_IRQ_TIME_ACCOUNTING
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP if NUMA
        select HAVE_NMI
        select HAVE_PATA_PLATFORM
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index a641b0b..833fdb0 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -13,7 +13,6 @@ config C6X
        select GENERIC_ATOMIC64
        select GENERIC_IRQ_SHOW
        select HAVE_ARCH_TRACEHOOK
-       select HAVE_MEMBLOCK
        select SPARSE_IRQ
        select IRQ_DOMAIN
        select OF
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 5e89d40..d19c6b16 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -15,7 +15,6 @@ config H8300
        select OF
        select OF_IRQ
        select OF_EARLY_FLATTREE
-       select HAVE_MEMBLOCK
        select TIMER_OF
        select H8300_TMR8
        select HAVE_KERNEL_GZIP
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 24a6da9..d9ae82b 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -31,7 +31,6 @@ config HEXAGON
        select GENERIC_CLOCKEVENTS_BROADCAST
        select MODULES_USE_ELF_RELA
        select GENERIC_CPU_DEVICES
-       select HAVE_MEMBLOCK
        select ARCH_DISCARD_MEMBLOCK
        ---help---
          Qualcomm Hexagon is a processor architecture designed for high
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 2bf4ef7..36773de 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -26,7 +26,6 @@ config IA64
        select HAVE_FUNCTION_TRACER
        select TTY
        select HAVE_ARCH_TRACEHOOK
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_VIRT_CPU_ACCOUNTING
        select ARCH_HAS_DMA_MARK_CLEAN
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 8c7111d..e88588b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -27,7 +27,6 @@ config M68K
        select OLD_SIGSUSPEND3
        select OLD_SIGACTION
        select DMA_NONCOHERENT_OPS if HAS_DMA
-       select HAVE_MEMBLOCK
        select ARCH_DISCARD_MEMBLOCK
 
 config CPU_BIG_ENDIAN
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 56379b9..c77eaef 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -28,7 +28,6 @@ config MICROBLAZE
        select HAVE_FTRACE_MCOUNT_RECORD
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_FUNCTION_TRACER
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_OPROFILE
        select IRQ_DOMAIN
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 54532f2..3484768 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -60,7 +60,6 @@ config MIPS
        select HAVE_IRQ_TIME_ACCOUNTING
        select HAVE_KPROBES
        select HAVE_KRETPROBES
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_MOD_ARCH_SPECIFIC
        select HAVE_NMI
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 06b1259..605d148 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -29,7 +29,6 @@ config NDS32
        select HANDLE_DOMAIN_IRQ
        select HAVE_ARCH_TRACEHOOK
        select HAVE_DEBUG_KMEMLEAK
-       select HAVE_MEMBLOCK
        select HAVE_REGS_AND_STACK_ACCESS_API
        select IRQ_DOMAIN
        select LOCKDEP_SUPPORT
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index ebfae50..6f43bc4 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -23,7 +23,6 @@ config NIOS2
        select SPARSE_IRQ
        select USB_ARCH_HAS_HCD if USB_SUPPORT
        select CPU_NO_EFFICIENT_FFS
-       select HAVE_MEMBLOCK
        select ARCH_DISCARD_MEMBLOCK
 
 config GENERIC_CSUM
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 25c6c2e..2ba6c6d 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -12,7 +12,6 @@ config OPENRISC
        select OF_EARLY_FLATTREE
        select IRQ_DOMAIN
        select HANDLE_DOMAIN_IRQ
-       select HAVE_MEMBLOCK
        select GPIOLIB
         select HAVE_ARCH_TRACEHOOK
        select SPARSE_IRQ
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 1d6332c..c8a6fda 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -15,7 +15,6 @@ config PARISC
        select RTC_CLASS
        select RTC_DRV_GENERIC
        select INIT_ALL_POSSIBLE
-       select HAVE_MEMBLOCK
        select BUG
        select BUILDTIME_EXTABLE_SORT
        select HAVE_PERF_EVENTS
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 304cdce..47c16ae 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -203,7 +203,6 @@ config PPC
        select HAVE_KRETPROBES
        select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
        select HAVE_LIVEPATCH                   if HAVE_DYNAMIC_FTRACE_WITH_REGS
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_MOD_ARCH_SPECIFIC
        select HAVE_NMI                         if PERF_EVENTS || (PPC64 && 
PPC_BOOK3S)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 63301c8..b92ee2f 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -28,7 +28,6 @@ config RISCV
        select GENERIC_STRNLEN_USER
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_DMA_CONTIGUOUS
        select HAVE_GENERIC_DMA_COHERENT
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b388e05..2ccad0b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -154,7 +154,6 @@ config S390
        select HAVE_LIVEPATCH
        select HAVE_PERF_REGS
        select HAVE_PERF_USER_STACK_DUMP
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_MEMBLOCK_PHYS_MAP
        select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index e254226..f89a172 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -8,7 +8,6 @@ config SUPERH
        select HAVE_PATA_PLATFORM
        select CLKDEV_LOOKUP
        select HAVE_IDE if HAS_IOPORT_MAP
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select ARCH_DISCARD_MEMBLOCK
        select HAVE_OPROFILE
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5e8aaee..3b2a2f3 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -45,7 +45,6 @@ config SPARC
        select LOCKDEP_SMALL if LOCKDEP
        select NEED_DMA_MAP_STATE
        select NEED_SG_DMA_LENGTH
-       select HAVE_MEMBLOCK
 
 config SPARC32
        def_bool !64BIT
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index ce3d562..6b99389 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -12,7 +12,6 @@ config UML
        select HAVE_UID16
        select HAVE_FUTEX_CMPXCHG if FUTEX
        select HAVE_DEBUG_KMEMLEAK
-       select HAVE_MEMBLOCK
        select GENERIC_IRQ_SHOW
        select GENERIC_CPU_DEVICES
        select GENERIC_CLOCKEVENTS
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 60eae74..8726acd 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -4,7 +4,6 @@ config UNICORE32
        select ARCH_HAS_DEVMEM_IS_ALLOWED
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
-       select HAVE_MEMBLOCK
        select HAVE_GENERIC_DMA_COHERENT
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_BZIP2
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 859bf9a..13b10cd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -167,7 +167,6 @@ config X86
        select HAVE_KRETPROBES
        select HAVE_KVM
        select HAVE_LIVEPATCH                   if X86_64
-       select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_MIXED_BREAKPOINTS_REGS
        select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index e4f7d12..2f7c086 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -27,7 +27,6 @@ config XTENSA
        select HAVE_FUTEX_CMPXCHG if !MMU
        select HAVE_HW_BREAKPOINT if PERF_EVENTS
        select HAVE_IRQ_TIME_ACCOUNTING
-       select HAVE_MEMBLOCK
        select HAVE_OPROFILE
        select HAVE_PERF_EVENTS
        select HAVE_STACKPROTECTOR
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 76c83c1..bd841bb 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -1115,13 +1115,11 @@ int __init early_init_dt_scan_chosen(unsigned long 
node, const char *uname,
        return 1;
 }
 
-#ifdef CONFIG_HAVE_MEMBLOCK
 #ifndef MIN_MEMBLOCK_ADDR
 #define MIN_MEMBLOCK_ADDR      __pa(PAGE_OFFSET)
 #endif
 #ifndef MAX_MEMBLOCK_ADDR
 #define MAX_MEMBLOCK_ADDR      ((phys_addr_t)~0)
-#endif
 
 void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
 {
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 895c83e..d6255c2 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -20,13 +20,12 @@
 #include <linux/of_reserved_mem.h>
 #include <linux/sort.h>
 #include <linux/slab.h>
+#include <linux/memblock.h>
 
 #define MAX_RESERVED_REGIONS   32
 static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
 static int reserved_mem_count;
 
-#if defined(CONFIG_HAVE_MEMBLOCK)
-#include <linux/memblock.h>
 int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
        phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
        phys_addr_t *res_base)
@@ -54,16 +53,6 @@ int __init __weak 
early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
                return memblock_remove(base, size);
        return 0;
 }
-#else
-int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
-       phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
-       phys_addr_t *res_base)
-{
-       pr_err("Reserved memory not supported, ignoring region 0x%llx%s\n",
-                 size, nomap ? " (nomap)" : "");
-       return -ENOSYS;
-}
-#endif
 
 /**
  * res_mem_save_node() - save fdt node for second pass initialization
diff --git a/drivers/staging/android/ion/Kconfig 
b/drivers/staging/android/ion/Kconfig
index c16dd16..0fdda6f 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -1,6 +1,6 @@
 menuconfig ION
        bool "Ion Memory Manager"
-       depends on HAVE_MEMBLOCK && HAS_DMA && MMU
+       depends on HAS_DMA && MMU
        select GENERIC_ALLOCATOR
        select DMA_SHARED_BUFFER
        help
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 503086f..0d19d19 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -141,7 +141,6 @@ config PSTORE_RAM
        tristate "Log panic/oops to a RAM buffer"
        depends on PSTORE
        depends on HAS_IOMEM
-       depends on HAVE_MEMBLOCK
        select REED_SOLOMON
        select REED_SOLOMON_ENC8
        select REED_SOLOMON_DEC8
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 1f005b5..ee61ac3 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -132,9 +132,6 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
 #define alloc_bootmem_low_pages_node(pgdat, x) \
        __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
 
-
-#if defined(CONFIG_HAVE_MEMBLOCK)
-
 /* FIXME: use MEMBLOCK_ALLOC_* variants here */
 #define BOOTMEM_ALLOC_ACCESSIBLE       0
 #define BOOTMEM_ALLOC_ANYWHERE         (~(phys_addr_t)0)
@@ -234,115 +231,6 @@ static inline void __init memblock_free_late(
        __memblock_free_late(base, size);
 }
 
-#else
-
-#define BOOTMEM_ALLOC_ACCESSIBLE       0
-
-
-/* Fall back to all the existing bootmem APIs */
-static inline void * __init memblock_virt_alloc(
-                                       phys_addr_t size,  phys_addr_t align)
-{
-       if (!align)
-               align = SMP_CACHE_BYTES;
-       return __alloc_bootmem(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_raw(
-                                       phys_addr_t size,  phys_addr_t align)
-{
-       if (!align)
-               align = SMP_CACHE_BYTES;
-       return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_nopanic(
-                                       phys_addr_t size, phys_addr_t align)
-{
-       if (!align)
-               align = SMP_CACHE_BYTES;
-       return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_low(
-                                       phys_addr_t size, phys_addr_t align)
-{
-       if (!align)
-               align = SMP_CACHE_BYTES;
-       return __alloc_bootmem_low(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_low_nopanic(
-                                       phys_addr_t size, phys_addr_t align)
-{
-       if (!align)
-               align = SMP_CACHE_BYTES;
-       return __alloc_bootmem_low_nopanic(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_from_nopanic(
-               phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
-       return __alloc_bootmem_nopanic(size, align, min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_node(
-                                               phys_addr_t size, int nid)
-{
-       return __alloc_bootmem_node(NODE_DATA(nid), size, SMP_CACHE_BYTES,
-                                    BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_node_nopanic(
-                                               phys_addr_t size, int nid)
-{
-       return __alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
-                                            SMP_CACHE_BYTES,
-                                            BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
-       phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-       return __alloc_bootmem_node_high(NODE_DATA(nid), size, align,
-                                         min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_raw(
-                       phys_addr_t size, phys_addr_t align,
-                       phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-       return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
-                               min_addr, max_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_nopanic(
-                       phys_addr_t size, phys_addr_t align,
-                       phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
-       return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
-                               min_addr, max_addr);
-}
-
-static inline void __init memblock_free_early(
-                                       phys_addr_t base, phys_addr_t size)
-{
-       free_bootmem(base, size);
-}
-
-static inline void __init memblock_free_early_nid(
-                               phys_addr_t base, phys_addr_t size, int nid)
-{
-       free_bootmem_node(NODE_DATA(nid), base, size);
-}
-
-static inline void __init memblock_free_late(
-                                       phys_addr_t base, phys_addr_t size)
-{
-       free_bootmem_late(base, size);
-}
-#endif /* defined(CONFIG_HAVE_MEMBLOCK) */
-
 extern void *alloc_large_system_hash(const char *tablename,
                                     unsigned long bucketsize,
                                     unsigned long numentries,
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5169205..4ae91fc 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -2,7 +2,6 @@
 #define _LINUX_MEMBLOCK_H
 #ifdef __KERNEL__
 
-#ifdef CONFIG_HAVE_MEMBLOCK
 /*
  * Logical memory blocks.
  *
@@ -460,7 +459,6 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, 
phys_addr_t align)
 {
        return 0;
 }
-#endif /* CONFIG_HAVE_MEMBLOCK */
 
 #endif /* __KERNEL__ */
 
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d63d163f..06d7d75 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2143,7 +2143,7 @@ extern int __meminit __early_pfn_to_nid(unsigned long pfn,
                                        struct mminit_pfnnid_cache *state);
 #endif
 
-#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
+#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
 void zero_resv_unavail(void);
 #else
 static inline void zero_resv_unavail(void) {}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 121d869..321117f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1311,7 +1311,7 @@ config DEBUG_KOBJECT
        depends on DEBUG_KERNEL
        help
          If you say Y here, some extra kobject debugging messages will be sent
-         to the syslog. 
+         to the syslog.
 
 config DEBUG_KOBJECT_RELEASE
        bool "kobject release debugging"
@@ -1988,7 +1988,6 @@ endif # RUNTIME_TESTING_MENU
 
 config MEMTEST
        bool "Memtest"
-       depends on HAVE_MEMBLOCK
        ---help---
          This option adds a kernel parameter 'memtest', which allows memtest
          to be set.
diff --git a/mm/Kconfig b/mm/Kconfig
index 16ceea0..c6a0d82 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -127,9 +127,6 @@ config SPARSEMEM_VMEMMAP
         pfn_to_page and page_to_pfn operations.  This is the most
         efficient option when sufficient kernel resources are available.
 
-config HAVE_MEMBLOCK
-       bool
-
 config HAVE_MEMBLOCK_NODE_MAP
        bool
 
@@ -481,7 +478,7 @@ config FRONTSWAP
 
 config CMA
        bool "Contiguous Memory Allocator"
-       depends on HAVE_MEMBLOCK && MMU
+       depends on MMU
        select MIGRATION
        select MEMORY_ISOLATION
        help
diff --git a/mm/Makefile b/mm/Makefile
index ea53338..ca3c844 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -43,11 +43,11 @@ obj-y                       := filemap.o mempool.o 
oom_kill.o fadvise.o \
 
 obj-y += init-mm.o
 obj-y += nobootmem.o
+obj-y += memblock.o
 
 ifdef CONFIG_MMU
        obj-$(CONFIG_ADVISE_SYSCALLS)   += madvise.o
 endif
-obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
 
 obj-$(CONFIG_SWAP)     += page_io.o swap_state.o swapfile.o swap_slots.o
 obj-$(CONFIG_FRONTSWAP)        += frontswap.o
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 439af3b..d4d0cd4 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -23,10 +23,6 @@
 
 #include "internal.h"
 
-#ifndef CONFIG_HAVE_MEMBLOCK
-#error CONFIG_HAVE_MEMBLOCK not defined
-#endif
-
 #ifndef CONFIG_NEED_MULTIPLE_NODES
 struct pglist_data __refdata contig_page_data;
 EXPORT_SYMBOL(contig_page_data);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 712cab1..3f3094d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6432,7 +6432,7 @@ void __init free_area_init_node(int nid, unsigned long 
*zones_size,
        free_area_init_core(pgdat);
 }
 
-#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
+#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
 /*
  * Only struct pages that are backed by physical memory are zeroed and
  * initialized by going through __init_single_page(). But, there are some
@@ -6473,7 +6473,7 @@ void __init zero_resv_unavail(void)
        if (pgcnt)
                pr_info("Reserved but unavailable: %lld pages", pgcnt);
 }
-#endif /* CONFIG_HAVE_MEMBLOCK && !CONFIG_FLAT_NODE_MEM_MAP */
+#endif /* !CONFIG_FLAT_NODE_MEM_MAP */
 
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 
-- 
2.7.4

Reply via email to