# git rev-parse -q --verify df85055f4421b6d147cca0ac6df8535392128775^{commit}
df85055f4421b6d147cca0ac6df8535392128775
already have revision, skipping fetch
# git checkout -q -f -B kisskb df85055f4421b6d147cca0ac6df8535392128775
# git clean -qxdf
# < git log -1
# commit df85055f4421b6d147cca0ac6df8535392128775
# Author: Nathan Chancellor <nathan@kernel.org>
# Date:   Fri May 28 11:27:52 2021 -0700
# 
#     powerpc/barrier: Avoid collision with clang's __lwsync macro
#     
#     A change in clang 13 results in the __lwsync macro being defined as
#     __builtin_ppc_lwsync, which emits 'lwsync' or 'msync' depending on what
#     the target supports. This breaks the build because of -Werror in
#     arch/powerpc, along with thousands of warnings:
#     
#      In file included from arch/powerpc/kernel/pmc.c:12:
#      In file included from include/linux/bug.h:5:
#      In file included from arch/powerpc/include/asm/bug.h:109:
#      In file included from include/asm-generic/bug.h:20:
#      In file included from include/linux/kernel.h:12:
#      In file included from include/linux/bitops.h:32:
#      In file included from arch/powerpc/include/asm/bitops.h:62:
#      arch/powerpc/include/asm/barrier.h:49:9: error: '__lwsync' macro redefined [-Werror,-Wmacro-redefined]
#      #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
#             ^
#      <built-in>:308:9: note: previous definition is here
#      #define __lwsync __builtin_ppc_lwsync
#             ^
#      1 error generated.
#     
#     Undefine this macro so that the runtime patching introduced by
#     commit 2d1b2027626d ("powerpc: Fixup lwsync at runtime") continues to
#     work properly with clang and the build no longer breaks.
#     
#     Cc: stable@vger.kernel.org
#     Signed-off-by: Nathan Chancellor <nathan@kernel.org>
#     Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://github.com/ClangBuiltLinux/linux/issues/1386
#     Link: https://github.com/llvm/llvm-project/commit/62b5df7fe2b3fda1772befeda15598fbef96a614
#     Link: https://lore.kernel.org/r/20210528182752.1852002-1-nathan@kernel.org
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 df85055f4421b6d147cca0ac6df8535392128775
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc85xx_defconfig
# Added to kconfig CONFIG_PPC_E500MC=y
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM_E500MC=y
# Added to kconfig 
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4215:warning: override: reassigning to symbol PPC_E500MC
.config:4216:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/module.h:12,
                 from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15:
/kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd':
/kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   22 | #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO)
      |                                                 ^
/kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
   78 | # define unlikely(x) __builtin_expect(!!(x), 0)
      |                                          ^
/kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE'
  139 |  if (IS_ERR_VALUE(fep->ring_mem_addr))
      |      ^~~~~~~~~~~~
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf68160) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
INFO: Uncompressed kernel (size 0xf57a34) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x1000000)
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:15 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139282 Bytes = 6971.96 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:15 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7104691 Bytes = 6938.17 KiB = 6.78 MiB
Load Address: 00000000
Entry Point:  00000000
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:16 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139694 Bytes = 6972.36 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:15 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139782 Bytes = 6972.44 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:16 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139312 Bytes = 6971.98 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  0100031c
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:17 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139300 Bytes = 6971.97 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  0100031c
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:18 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139525 Bytes = 6972.19 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:18 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139603 Bytes = 6972.27 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  0100031c
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139483 Bytes = 6972.15 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7140215 Bytes = 6972.87 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139606 Bytes = 6972.27 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139301 Bytes = 6971.97 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  0100031c
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7140145 Bytes = 6972.80 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139557 Bytes = 6972.22 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  0100031c
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139462 Bytes = 6972.13 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Image Name:   Linux-5.13.0-rc2-112622-gdf85055
Created:      Mon Jun  7 03:37:19 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    7139601 Bytes = 6972.27 KiB = 6.81 MiB
Load Address: 01000000
Entry Point:  010002cc
Completed OK
# rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9
# Build took: 0:02:50.240023