# git rev-parse -q --verify bad32f8b971407f2f651b9ceedd2093ce478041f^{commit} bad32f8b971407f2f651b9ceedd2093ce478041f already have revision, skipping fetch # git checkout -q -f -B kisskb bad32f8b971407f2f651b9ceedd2093ce478041f # git clean -qxdf # < git log -1 # commit bad32f8b971407f2f651b9ceedd2093ce478041f # Author: Mauricio Faria de Oliveira # Date: Fri Mar 9 17:45:58 2018 -0300 # # powerpc/mm: Fix section mismatch warning in stop_machine_change_mapping() # # Fix the warning messages for stop_machine_change_mapping(), and a number # of other affected functions in its call chain. # # All modified functions are under CONFIG_MEMORY_HOTPLUG, so __meminit # is okay (keeps them / does not discard them). # # Boot-tested on powernv/power9/radix-mmu and pseries/power8/hash-mmu. # # $ make -j$(nproc) CONFIG_DEBUG_SECTION_MISMATCH=y vmlinux # ... # MODPOST vmlinux.o # WARNING: vmlinux.o(.text+0x6b130): Section mismatch in reference from the function stop_machine_change_mapping() to the function .meminit.text:create_physical_mapping() # The function stop_machine_change_mapping() references # the function __meminit create_physical_mapping(). # This is often because stop_machine_change_mapping lacks a __meminit # annotation or the annotation of create_physical_mapping is wrong. # # WARNING: vmlinux.o(.text+0x6b13c): Section mismatch in reference from the function stop_machine_change_mapping() to the function .meminit.text:create_physical_mapping() # The function stop_machine_change_mapping() references # the function __meminit create_physical_mapping(). # This is often because stop_machine_change_mapping lacks a __meminit # annotation or the annotation of create_physical_mapping is wrong. # ... # # Signed-off-by: Mauricio Faria de Oliveira # Acked-by: Balbir Singh # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version # < git log --format=%s --max-count=1 bad32f8b971407f2f651b9ceedd2093ce478041f # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux- allmodconfig # Added to kconfig CONFIG_CPU_LITTLE_ENDIAN=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # yes \n | make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux- oldconfig yes: standard output: Broken pipe yes: write error # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux- In file included from /kisskb/src/include/linux/io.h:25:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:18: /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/arch/powerpc/include/asm/io.h:162:2: warning: 'px_is' may be used uninitialized in this function [-Wmaybe-uninitialized] __asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0" \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here u32 px_cmd, px_is, px_val; ^ In file included from /kisskb/src/include/linux/io.h:25:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:18: /kisskb/src/arch/powerpc/include/asm/io.h:162:2: warning: 'px_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized] __asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0" \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here u32 px_cmd, px_is, px_val; ^ /kisskb/src/drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^ WARNING: vmlinux.o(.text+0x35f0): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init() The function __boot_from_prom() references the function __init prom_init(). This is often because __boot_from_prom lacks a __init annotation or the annotation of prom_init is wrong. WARNING: vmlinux.o(.text+0x3844): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:early_setup() The function start_here_multiplatform() references the function __init early_setup(). This is often because start_here_multiplatform lacks a __init annotation or the annotation of early_setup is wrong. WARNING: vmlinux.o(.text+0x3878): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel() The function start_here_common() references the function __init start_kernel(). This is often because start_here_common lacks a __init annotation or the annotation of start_kernel is wrong. WARNING: vmlinux.o(.text+0x28508): Section mismatch in reference from the function setup_rfi_flush() to the function .init.text:ppc64_bolted_size() The function setup_rfi_flush() references the function __init ppc64_bolted_size(). This is often because setup_rfi_flush lacks a __init annotation or the annotation of ppc64_bolted_size is wrong. WARNING: vmlinux.o(.text+0x28538): Section mismatch in reference from the function setup_rfi_flush() to the function .init.text:memblock_alloc_base() The function setup_rfi_flush() references the function __init memblock_alloc_base(). This is often because setup_rfi_flush lacks a __init annotation or the annotation of memblock_alloc_base is wrong. WARNING: vmlinux.o(.text+0x3469ac): Section mismatch in reference from the function devm_memremap_pages() to the function .meminit.text:arch_add_memory() The function devm_memremap_pages() references the function __meminit arch_add_memory(). This is often because devm_memremap_pages lacks a __meminit annotation or the annotation of arch_add_memory is wrong. WARNING: vmlinux.o(.text+0x347298): Section mismatch in reference from the function devm_memremap_pages_release() to the function .meminit.text:arch_remove_memory() The function devm_memremap_pages_release() references the function __meminit arch_remove_memory(). This is often because devm_memremap_pages_release lacks a __meminit annotation or the annotation of arch_remove_memory is wrong. WARNING: vmlinux.o(.text+0x46ff6c): Section mismatch in reference from the function hmm_devmem_release() to the function .meminit.text:arch_remove_memory() The function hmm_devmem_release() references the function __meminit arch_remove_memory(). This is often because hmm_devmem_release lacks a __meminit annotation or the annotation of arch_remove_memory is wrong. WARNING: vmlinux.o(.text+0x470448): Section mismatch in reference from the function hmm_devmem_pages_create() to the function .meminit.text:arch_add_memory() The function hmm_devmem_pages_create() references the function __meminit arch_add_memory(). This is often because hmm_devmem_pages_create lacks a __meminit annotation or the annotation of arch_add_memory is wrong. Completed OK # rm -rf /kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le # Build took: 0:06:56.687428