# 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 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_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/include/linux/kernel.h:10:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:9, 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:77:42: 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)) ^ arch/powerpc/boot/mpc8555cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8541cds.dtb: 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 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb63724) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb52f6c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5586324 Bytes = 5455.39 kB = 5.33 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5612054 Bytes = 5480.52 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5609733 Bytes = 5478.25 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5613239 Bytes = 5481.68 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610078 Bytes = 5478.59 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5609777 Bytes = 5478.30 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5613281 Bytes = 5481.72 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:06 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5609683 Bytes = 5478.21 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610076 Bytes = 5478.59 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610391 Bytes = 5478.90 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610867 Bytes = 5479.36 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5609681 Bytes = 5478.20 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5609721 Bytes = 5478.24 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:07 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610475 Bytes = 5478.98 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c00278 Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5610409 Bytes = 5478.92 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Image Name: Linux-4.18.0-rc3-g3977583 Created: Tue Jul 10 17:47:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5612580 Bytes = 5481.04 kB = 5.35 MB Load Address: 00c00000 Entry Point: 00c0020c Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig_powerpc-5.3 # Build took: 0:01:44.685068