# git rev-parse -q --verify 7ae564122f75337d84c41b3963a6e25e8665dfac^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 7ae564122f75337d84c41b3963a6e25e8665dfac^{commit}
7ae564122f75337d84c41b3963a6e25e8665dfac
# git checkout -q -f -B kisskb 7ae564122f75337d84c41b3963a6e25e8665dfac
# git clean -qxdf
# < git log -1
# commit 7ae564122f75337d84c41b3963a6e25e8665dfac
# Merge: baf4dc829574 aa4a63dd9816
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jan 6 14:49:52 2020 -0800
# 
#     Merge tag 'tpmdd-next-20200106' of git://git.infradead.org/users/jjs/linux-tpmdd
#     
#     Pull tpmd fixes from Jarkko Sakkinen:
#      "There has been a bunch of reports (e.g. [*]) reporting that when
#       commit 5b359c7c4372 ("tpm_tis_core: Turn on the TPM before probing
#       IRQ's") and subsequent fixes are applied it causes boot freezes on
#       some machines.
#     
#       Unfortunately hardware where this causes a failure is not widely
#       available (only one I'm aware is Lenovo T490), which means we cannot
#       predict yet how long it will take to properly fix tpm_tis interrupt
#       probing.
#     
#       Thus, the least worst short term action is to revert the code to the
#       state before this commit. In long term we need fix the tpm_tis probing
#       code to work on machines that Stefan's patches were supposed to fix.
#     
#       With these patches reverted nothing fatal happens, TPM is fallbacked
#       to be used in polling mode (which is not in the end too bad because
#       there are no high throughput workloads for TPM).
#     
#       [*] https://bugzilla.kernel.org/show_bug.cgi?id=205935"
#     
#     * tag 'tpmdd-next-20200106' of git://git.infradead.org/users/jjs/linux-tpmdd:
#       tpm: Revert "tpm_tis_core: Turn on the TPM before probing IRQ's"
#       tpm: Revert "tpm_tis_core: Set TPM_CHIP_FLAG_IRQ before probing for interrupts"
#       tpm: Revert "tpm_tis: reserve chip for duration of tpm_tis_core_init"
# < /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 7ae564122f75337d84c41b3963a6e25e8665dfac
# < make -s -j 8 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=0xBC55DA10
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -s -j 8 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 8 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:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
   pd->msg->buf[real_pos] = data;
                          ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
  unsigned char data;
                ^
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:12:59.141976