# git rev-parse -q --verify c72f04dc46f466a7574a204bf2e965aa1c5cf277^{commit} c72f04dc46f466a7574a204bf2e965aa1c5cf277 already have revision, skipping fetch # git checkout -q -f -B kisskb c72f04dc46f466a7574a204bf2e965aa1c5cf277 # git clean -qxdf # < git log -1 # commit c72f04dc46f466a7574a204bf2e965aa1c5cf277 # Author: Petr Mladek # Date: Wed May 27 14:28:44 2020 +0200 # # powerpc/bpf: Enable bpf_probe_read{, str}() on powerpc again # # The commit 0ebeea8ca8a4d1d453a ("bpf: Restrict bpf_probe_read{, str}() # only to archs where they work") caused that bpf_probe_read{, str}() # functions were not longer available on architectures where the same # logical address might have different content in kernel and user memory # mapping. These architectures should use probe_read_{user,kernel}_str # helpers. # # For backward compatibility, the problematic functions are still # available on architectures where the user and kernel address spaces # are not overlapping. This is defined # CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE. # # At the moment, these backward compatible functions are enabled only on # x86_64, arm, and arm64. Let's do it also on powerpc that has the non # overlapping address space as well. # # Fixes: 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work") # Signed-off-by: Petr Mladek # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20200527122844.19524-1-pmladek@suse.com # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 c72f04dc46f466a7574a204bf2e965aa1c5cf277 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here int oldval, ret; ^ In file included from /kisskb/src/include/linux/kernel.h:11:0, 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)) ^ /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 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcae724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc9df20) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6234214 Bytes = 6088.10 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235723 Bytes = 6089.57 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235360 Bytes = 6089.22 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235871 Bytes = 6089.72 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235377 Bytes = 6089.24 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235281 Bytes = 6089.14 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235406 Bytes = 6089.26 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235036 Bytes = 6088.90 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235092 Bytes = 6088.96 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6204597 Bytes = 6059.18 KiB = 5.92 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235280 Bytes = 6089.14 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6234885 Bytes = 6088.75 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235735 Bytes = 6089.58 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:34 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235721 Bytes = 6089.57 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:34 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6235868 Bytes = 6089.71 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc2-gc72f04dc46f4 Created: Fri May 29 02:43:34 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6236165 Bytes = 6090.00 KiB = 5.95 MiB Load Address: 00d00000 Entry Point: 00d002a4 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.9 # Build took: 0:02:27.746020