# 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-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 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc40x_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages: /kisskb/src/arch/powerpc/kernel/head_40x.S:804: Warning: invalid register expression INFO: Uncompressed kernel (size 0x57e02c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x57e02c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x57e02c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x56d97c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x57e02c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 04:24:27 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2778184 Bytes = 2713.07 KiB = 2.65 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 04:24:27 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2810995 Bytes = 2745.11 KiB = 2.68 MiB Load Address: 00600000 Entry Point: 006017dc Image Name: Linux-5.5.0-rc5-g932bba9c9c94 Created: Fri Jan 24 04:24:28 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2811368 Bytes = 2745.48 KiB = 2.68 MiB Load Address: 00600000 Entry Point: 00601a18 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc40x_defconfig_powerpc-gcc5 # Build took: 0:00:48.708710