# git rev-parse -q --verify 6381b442836ea3c52eae630b10be8c27c7a17af2^{commit}
6381b442836ea3c52eae630b10be8c27c7a17af2
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6381b442836ea3c52eae630b10be8c27c7a17af2
# git clean -qxdf
# < git log -1
# commit 6381b442836ea3c52eae630b10be8c27c7a17af2
# Merge: 3c45d7510cf5 8c17bbf6c8f7
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jan 24 09:56:59 2020 -0800
# 
#     Merge tag 'iommu-fixes-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
#     
#     Pull iommu fixes from Joerg Roedel:
#      "Two fixes:
#     
#        - Fix NULL-ptr dereference bug in Intel IOMMU driver
#     
#        - Properly save and restore AMD IOMMU performance counter registers
#          when testing if they are writable"
#     
#     * tag 'iommu-fixes-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
#       iommu/amd: Fix IOMMU perf counter clobbering during init
#       iommu/vt-d: Call __dmar_remove_one_dev_info with valid pointer
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 6381b442836ea3c52eae630b10be8c27c7a17af2
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  pleb_defconfig
# make -s -j 24 ARCH=arm O=/kisskb/build/linus_pleb_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
/kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
WARNING: vmlinux.o(.text.unlikely+0x71c): Section mismatch in reference from the function free_memmap() to the function .meminit.text:memblock_free()
The function free_memmap() references
the function __meminit memblock_free().
This is often because free_memmap lacks a __meminit 
annotation or the annotation of memblock_free is wrong.

Completed OK
# rm -rf /kisskb/build/linus_pleb_defconfig_arm
# Build took: 0:00:37.545646