# git rev-parse -q --verify 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b^{commit} 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b already have revision, skipping fetch # git checkout -q -f -B kisskb 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b # git clean -qxdf # < git log -1 # commit 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b # Author: Christophe Leroy # Date: Wed Jan 22 17:52:50 2020 +0000 # # powerpc/32s: Drop NULL addr verification # # NULL addr is a user address. Don't waste time checking it. If # someone tries to access it, it will SIGFAULT the same way as for # address 1, so no need to make it special. # # The special case is when not doing a write, in that case we want # to drop the entire function. This is now handled by 'dir' param # and not by the nulity of 'to' anymore. # # Also make beginning of prevent_user_access() similar # to beginning of allow_user_access(), and tell the compiler # that writing in kernel space or with a 0 length is unlikely # # Signed-off-by: Christophe Leroy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/d79cb9f680f4e971e05262303103a4b94baa91ce.1579715466.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-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 # yes \n | make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-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] #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' # 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' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^~~~~~~~~~~~ In file included from /kisskb/src/include/linux/acpi.h:15, from /kisskb/src/include/linux/i2c.h:13, from /kisskb/src/include/uapi/linux/fb.h:6, from /kisskb/src/include/linux/fb.h:6, from /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:20: /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c: In function 'fsl_diu_ioctl': /kisskb/src/include/linux/device.h:1776:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1290:2: note: here case MFB_SET_PIXFMT: ^~~~ In file included from /kisskb/src/include/linux/acpi.h:15, from /kisskb/src/include/linux/i2c.h:13, from /kisskb/src/include/uapi/linux/fb.h:6, from /kisskb/src/include/linux/fb.h:6, from /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:20: /kisskb/src/include/linux/device.h:1776:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro 'dev_warn' dev_warn(info->dev, ^~~~~~~~ /kisskb/src/drivers/video/fbdev/fsl-diu-fb.c:1299:2: note: here case MFB_GET_PIXFMT: ^~~~ /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 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe617f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe50ff4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6725975 Bytes = 6568.33 KiB = 6.41 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761268 Bytes = 6602.80 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761774 Bytes = 6603.29 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6765700 Bytes = 6607.13 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761732 Bytes = 6603.25 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6766023 Bytes = 6607.44 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761436 Bytes = 6602.96 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761175 Bytes = 6602.71 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6762033 Bytes = 6603.55 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761529 Bytes = 6603.06 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761373 Bytes = 6602.90 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761278 Bytes = 6602.81 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761270 Bytes = 6602.80 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6761316 Bytes = 6602.85 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6765120 Bytes = 6606.56 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 05:56:48 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6762732 Bytes = 6604.23 KiB = 6.45 MiB Load Address: 00f00000 Entry Point: 00f002b4 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc8 # Build took: 0:02:42.088934