# 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/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 6381b442836ea3c52eae630b10be8c27c7a17af2
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  allmodconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_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:38: LSE atomics not supported by binutils
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zone_nr_conv_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:327:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zone_nr_conv, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_mbps_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:323:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(mbps, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_index_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:318:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(index, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_hw_queue_depth_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:317:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(hw_queue_depth, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_irqmode_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:316:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(irqmode, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_blocksize_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:315:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(blocksize, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_queue_mode_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:314:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(queue_mode, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_home_node_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:313:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(home_node, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zone_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:326:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zone_size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_cache_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:324:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(cache_size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_completion_nsec_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:311:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(completion_nsec, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:310:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zoned_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/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:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/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:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/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:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/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:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/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/block/null_blk_main.c: In function 'nullb_device_submit_queues_store':
/kisskb/src/drivers/block/null_blk_main.c:307:48: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return set->nr_hw_queues == submit_queues ? 0 : -ENOMEM;
                                                ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:312:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(submit_queues, uint, nullb_apply_submit_queues);
 ^
/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;
                ^
In file included from /kisskb/src/include/linux/wait.h:9:0,
                 from /kisskb/src/include/linux/net.h:19,
                 from /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:8:
/kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c: In function 'siw_proc_send':
/kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:335:16: note: 'flags' was declared here
  unsigned long flags;
                ^
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:14,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit':
/kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1352:16: note: 'flags' was declared here
  unsigned long flags;
                ^
/kisskb/src/drivers/net/ethernet/pensando/ionic/ionic_main.c: In function 'ionic_dev_cmd_wait':
/kisskb/src/drivers/net/ethernet/pensando/ionic/ionic_main.c:331:6: warning: 'hb' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int hb;
      ^
Completed OK
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4
# Build took: 0:18:43.216328