# git rev-parse -q --verify b4b52b881cf08e13d110eac811d4becc0775abbf^{commit}
b4b52b881cf08e13d110eac811d4becc0775abbf
already have revision, skipping fetch
# git checkout -q -f -B kisskb b4b52b881cf08e13d110eac811d4becc0775abbf
# git clean -qxdf
# < git log -1
# commit b4b52b881cf08e13d110eac811d4becc0775abbf
# Merge: 2d60d96b6f00 ccaa75187a5f
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue May 7 12:48:10 2019 -0700
# 
#     Merge tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
#     
#     Pull Wimplicit-fallthrough updates from Gustavo A. R. Silva:
#      "Mark switch cases where we are expecting to fall through.
#     
#       This is part of the ongoing efforts to enable -Wimplicit-fallthrough.
#     
#       Most of them have been baking in linux-next for a whole development
#       cycle. And with Stephen Rothwell's help, we've had linux-next
#       nag-emails going out for newly introduced code that triggers
#       -Wimplicit-fallthrough to avoid gaining more of these cases while we
#       work to remove the ones that are already present.
#     
#       We are getting close to completing this work. Currently, there are
#       only 32 of 2311 of these cases left to be addressed in linux-next. I'm
#       auditing every case; I take a look into the code and analyze it in
#       order to determine if I'm dealing with an actual bug or a false
#       positive, as explained here:
#     
#           https://lore.kernel.org/lkml/c2fad584-1705-a5f2-d63c-824e9b96cf50@embeddedor.com/
#     
#       While working on this, I've found and fixed the several missing
#       break/return bugs, some of them introduced more than 5 years ago.
#     
#       Once this work is finished, we'll be able to universally enable
#       "-Wimplicit-fallthrough" to avoid any of these kinds of bugs from
#       entering the kernel again"
#     
#     * tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits)
#       memstick: mark expected switch fall-throughs
#       drm/nouveau/nvkm: mark expected switch fall-throughs
#       NFC: st21nfca: Fix fall-through warnings
#       NFC: pn533: mark expected switch fall-throughs
#       block: Mark expected switch fall-throughs
#       ASN.1: mark expected switch fall-through
#       lib/cmdline.c: mark expected switch fall-throughs
#       lib: zstd: Mark expected switch fall-throughs
#       scsi: sym53c8xx_2: sym_nvram: Mark expected switch fall-through
#       scsi: sym53c8xx_2: sym_hipd: mark expected switch fall-throughs
#       scsi: ppa: mark expected switch fall-through
#       scsi: osst: mark expected switch fall-throughs
#       scsi: lpfc: lpfc_scsi: Mark expected switch fall-throughs
#       scsi: lpfc: lpfc_nvme: Mark expected switch fall-through
#       scsi: lpfc: lpfc_nportdisc: Mark expected switch fall-through
#       scsi: lpfc: lpfc_hbadisc: Mark expected switch fall-throughs
#       scsi: lpfc: lpfc_els: Mark expected switch fall-throughs
#       scsi: lpfc: lpfc_ct: Mark expected switch fall-throughs
#       scsi: imm: mark expected switch fall-throughs
#       scsi: csiostor: csio_wr: mark expected switch fall-through
#       ...
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 b4b52b881cf08e13d110eac811d4becc0775abbf
# < make -s -j 80 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0x195DDEDC
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -s -j 80 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:02:24.503990