# git rev-parse -q --verify e8f71f89236ef82d449991bfbc237e3cb6ea584f^{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 e8f71f89236ef82d449991bfbc237e3cb6ea584f^{commit}
e8f71f89236ef82d449991bfbc237e3cb6ea584f
# git checkout -q -f -B kisskb e8f71f89236ef82d449991bfbc237e3cb6ea584f
# git clean -qxdf
# < git log -1
# commit e8f71f89236ef82d449991bfbc237e3cb6ea584f
# Author: Guenter Roeck <linux@roeck-us.net>
# Date:   Wed Sep 8 12:08:17 2021 -0700
# 
#     drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV
#     
#     nvkm test builds fail with the following error.
#     
#       drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c: In function 'nvkm_control_mthd_pstate_info':
#       drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c:60:35: error: overflow in conversion from 'int' to '__s8' {aka 'signed char'} changes value from '-251' to '5'
#     
#     The code builds on most architectures, but fails on parisc where ENOSYS
#     is defined as 251.
#     
#     Replace the error code with -ENODEV (-19).  The actual error code does
#     not really matter and is not passed to userspace - it just has to be
#     negative.
#     
#     Fixes: 7238eca4cf18 ("drm/nouveau: expose pstate selection per-power source in sysfs")
#     Signed-off-by: Guenter Roeck <linux@roeck-us.net>
#     Cc: Ben Skeggs <bskeggs@redhat.com>
#     Cc: David Airlie <airlied@linux.ie>
#     Cc: Daniel Vetter <daniel@ffwll.ch>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 e8f71f89236ef82d449991bfbc237e3cb6ea584f
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11
# Build took: 0:07:17.870199