# git rev-parse -q --verify 397758385ba96da48a96f82cf3521f994f3a78b3^{commit} 397758385ba96da48a96f82cf3521f994f3a78b3 already have revision, skipping fetch # git checkout -q -f -B kisskb 397758385ba96da48a96f82cf3521f994f3a78b3 # git clean -qxdf # < git log -1 # commit 397758385ba96da48a96f82cf3521f994f3a78b3 # Author: Michael Ellerman # Date: Tue Jul 10 16:20:56 2018 +1000 # # powerpc/uaccess: Enable get_user(u64, *p) on 32-bit # # Currently if you build a 32-bit powerpc kernel and use get_user() to # load a u64 value it will fail to build with eg: # # kernel/rseq.o: In function `rseq_get_rseq_cs': # kernel/rseq.c:123: undefined reference to `__get_user_bad' # # This is hitting the check in __get_user_size() that makes sure the # size we're copying doesn't exceed the size of the destination: # # #define __get_user_size(x, ptr, size, retval) # do { # retval = 0; # __chk_user_ptr(ptr); # if (size > sizeof(x)) # (x) = __get_user_bad(); # # Which doesn't immediately make sense because the size of the # destination is u64, but it's not really, because __get_user_check() # etc. internally create an unsigned long and copy into that: # # #define __get_user_check(x, ptr, size) # ({ # long __gu_err = -EFAULT; # unsigned long __gu_val = 0; # # The problem being that on 32-bit unsigned long is not big enough to # hold a u64. We can fix this with a trick from hpa in the x86 code, we # statically check the type of x and set the type of __gu_val to either # unsigned long or unsigned long long. # # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 397758385ba96da48a96f82cf3521f994f3a78b3 # < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. In file included from /kisskb/src/sound/ppc/pmac.h:25:0, from /kisskb/src/sound/ppc/awacs.c:29: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:223:9: 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:886:36: note: 'speaker_vol' was declared here struct snd_kcontrol *master_vol, *speaker_vol; ^ arch/powerpc/boot/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@0:#interrupt-cells: size is (4), expected multiple of 8 arch/powerpc/boot/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@4:#interrupt-cells: size is (4), expected multiple of 8 INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa64ce4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:00 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951682 Bytes = 4835.63 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b007a0 INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:00 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4952069 Bytes = 4836.00 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b007a0 Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:00 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4927868 Bytes = 4812.37 kB = 4.70 MB Load Address: 00000000 Entry Point: 00000000 INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951666 Bytes = 4835.61 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 INFO: Uncompressed kernel (size 0xa7543c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa64ce4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:03 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951646 Bytes = 4835.59 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:03 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951722 Bytes = 4835.67 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:04 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951432 Bytes = 4835.38 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:04 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4951095 Bytes = 4835.05 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 Image Name: Linux-4.18.0-rc3+ Created: Tue Jul 10 17:54:04 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4952064 Bytes = 4836.00 kB = 4.72 MB Load Address: 00b00000 Entry Point: 00b001f4 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-5.3 # Build took: 0:06:32.401177