# git rev-parse -q --verify 4b205766d8fcb1627429ff31a4b36248b71a0df1^{commit}
4b205766d8fcb1627429ff31a4b36248b71a0df1
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4b205766d8fcb1627429ff31a4b36248b71a0df1
# git clean -qxdf
# < git log -1
# commit 4b205766d8fcb1627429ff31a4b36248b71a0df1
# Merge: fa079ba8a98d ab362fffa0fe
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Feb 19 09:34:25 2020 -0800
# 
#     Merge tag 'iommu-fixes-v5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
#     
#     Pull iommu fixes from Joerg Roedel:
#     
#      - Compile warning fix for the Intel IOMMU driver
#     
#      - Fix kdump boot with Intel IOMMU enabled and in passthrough mode
#     
#      - Disable AMD IOMMU on a Laptop/Embedded platform because the delay it
#        introduces in DMA transactions causes screen flickering there with 4k
#        monitors
#     
#      - Make domain_free function in QCOM IOMMU driver robust and not leak
#        memory/dereference NULL pointers
#     
#      - Fix ARM-SMMU module parameter prefix names
#     
#     * tag 'iommu-fixes-v5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
#       iommu/arm-smmu: Restore naming of driver parameter prefix
#       iommu/qcom: Fix bogus detach logic
#       iommu/amd: Disable IOMMU on Stoney Ridge systems
#       iommu/vt-d: Simplify check in identity_mapping()
#       iommu/vt-d: Remove deferred_attach_domain()
#       iommu/vt-d: Do deferred attachment in iommu_need_mapping()
#       iommu/vt-d: Move deferred device attachment into helper function
#       iommu/vt-d: Add attach_deferred() helper
#       iommu/vt-d: Fix compile warning from intel-svm.h
# < /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 4b205766d8fcb1627429ff31a4b36248b71a0df1
# < make -s -j 32 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=0x99668A8C
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -s -j 32 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 32 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:35: LSE atomics not supported by binutils
arch/arm64/Makefile:35: LSE atomics not supported by binutils
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zoned_store':
/kisskb/src/drivers/block/null_blk_main.c:279:25: warning: 'new_value' is used uninitialized in this function [-Wuninitialized]
  TYPE uninitialized_var(new_value);    \
                         ^
In file included from /kisskb/src/include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
/kisskb/src/drivers/block/null_blk_main.c:279:25: note: 'new_value' was declared here
  TYPE uninitialized_var(new_value);    \
                         ^
/kisskb/src/include/linux/compiler-gcc.h:65:30: note: in definition of macro 'uninitialized_var'
 #define uninitialized_var(x) x = x
                              ^
/kisskb/src/drivers/block/null_blk_main.c:325:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zoned, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_discard_store':
/kisskb/src/drivers/block/null_blk_main.c:279:25: warning: 'new_value' is used uninitialized in this function [-Wuninitialized]
  TYPE uninitialized_var(new_value);    \
                         ^
In file included from /kisskb/src/include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
/kisskb/src/drivers/block/null_blk_main.c:279:25: note: 'new_value' was declared here
  TYPE uninitialized_var(new_value);    \
                         ^
/kisskb/src/include/linux/compiler-gcc.h:65:30: note: in definition of macro 'uninitialized_var'
 #define uninitialized_var(x) x = x
                              ^
/kisskb/src/drivers/block/null_blk_main.c:322:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(discard, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_memory_backed_store':
/kisskb/src/drivers/block/null_blk_main.c:279:25: warning: 'new_value' is used uninitialized in this function [-Wuninitialized]
  TYPE uninitialized_var(new_value);    \
                         ^
In file included from /kisskb/src/include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
/kisskb/src/drivers/block/null_blk_main.c:279:25: note: 'new_value' was declared here
  TYPE uninitialized_var(new_value);    \
                         ^
/kisskb/src/include/linux/compiler-gcc.h:65:30: note: in definition of macro 'uninitialized_var'
 #define uninitialized_var(x) x = x
                              ^
/kisskb/src/drivers/block/null_blk_main.c:321:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(memory_backed, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_use_per_node_hctx_store':
/kisskb/src/drivers/block/null_blk_main.c:279:25: warning: 'new_value' is used uninitialized in this function [-Wuninitialized]
  TYPE uninitialized_var(new_value);    \
                         ^
In file included from /kisskb/src/include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
/kisskb/src/drivers/block/null_blk_main.c:279:25: note: 'new_value' was declared here
  TYPE uninitialized_var(new_value);    \
                         ^
/kisskb/src/include/linux/compiler-gcc.h:65:30: note: in definition of macro 'uninitialized_var'
 #define uninitialized_var(x) x = x
                              ^
/kisskb/src/drivers/block/null_blk_main.c:320:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(use_per_node_hctx, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_blocking_store':
/kisskb/src/drivers/block/null_blk_main.c:279:25: warning: 'new_value' is used uninitialized in this function [-Wuninitialized]
  TYPE uninitialized_var(new_value);    \
                         ^
In file included from /kisskb/src/include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
/kisskb/src/drivers/block/null_blk_main.c:279:25: note: 'new_value' was declared here
  TYPE uninitialized_var(new_value);    \
                         ^
/kisskb/src/include/linux/compiler-gcc.h:65:30: note: in definition of macro 'uninitialized_var'
 #define uninitialized_var(x) x = x
                              ^
/kisskb/src/drivers/block/null_blk_main.c:319:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(blocking, bool, NULL);
 ^
/kisskb/src/drivers/memory/tegra/tegra186.c:1573:12: warning: 'tegra186_mc_suspend' defined but not used [-Wunused-function]
 static int tegra186_mc_suspend(struct device *dev)
            ^
/kisskb/src/drivers/memory/tegra/tegra186.c:1578:12: warning: 'tegra186_mc_resume' defined but not used [-Wunused-function]
 static int tegra186_mc_resume(struct device *dev)
            ^
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:07:50.565359