# 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-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 c72f04dc46f466a7574a204bf2e965aa1c5cf277 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/kernel/trace/ftrace.c: In function 'pid_open': /kisskb/src/kernel/trace/ftrace.c:7166:6: warning: 'seq_ops' may be used uninitialized in this function [-Wmaybe-uninitialized] ret = seq_open(file, seq_ops); ^ /kisskb/src/kernel/trace/ftrace.c: In function 'pid_write': /kisskb/src/kernel/trace/ftrace.c:7244:6: warning: 'filtered_pids' may be used uninitialized in this function [-Wmaybe-uninitialized] ret = trace_pid_write(filtered_pids, &pid_list, ubuf, cnt); ^ /kisskb/src/kernel/trace/ftrace.c:7261:22: warning: 'other_pids' may be used uninitialized in this function [-Wmaybe-uninitialized] } else if (pid_list && !other_pids) { ^ In file included from /kisskb/src/sound/ppc/pmac.h:12:0, from /kisskb/src/sound/ppc/awacs.c:16: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:218:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] return _snd_ctl_add_slave(master, slave, 0); ^ /kisskb/src/sound/ppc/awacs.c:873:36: note: 'speaker_vol' was declared here struct snd_kcontrol *master_vol, *speaker_vol; ^ INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad6908) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xac6220) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xac6220) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:34 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5203039 Bytes = 5081.09 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5202306 Bytes = 5080.38 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5202284 Bytes = 5080.36 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5201196 Bytes = 5079.29 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5202229 Bytes = 5080.30 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5203138 Bytes = 5081.19 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5172028 Bytes = 5050.81 KiB = 4.93 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5201603 Bytes = 5079.69 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.7.0-rc2+ Created: Fri May 29 00:48:35 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5202349 Bytes = 5080.42 KiB = 4.96 MiB Load Address: 00b00000 Entry Point: 00b00294 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 # Build took: 0:03:26.289057