# git rev-parse -q --verify 4c205c84e249e0a91dcfabe461d77667ec9b2d05^{commit}
4c205c84e249e0a91dcfabe461d77667ec9b2d05
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# git clean -qxdf
# < git log -1
# commit 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# Merge: ea9448b254e2 4f0882491a14
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Apr 4 12:24:47 2020 -0700
# 
#     Merge tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
#     
#     Pull keyrings fixes from David Howells:
#      "Here's a couple of patches that fix a circular dependency between
#       holding key->sem and mm->mmap_sem when reading data from a key.
#     
#       One potential issue is that a filesystem looking to use a key inside,
#       say, ->readpages() could deadlock if the key being read is the key
#       that's required and the buffer the key is being read into is on a page
#       that needs to be fetched.
#     
#       The case actually detected is a bit more involved - with a filesystem
#       calling request_key() and locking the target keyring for write - which
#       could be being read"
#     
#     * tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
#       KEYS: Avoid false positive ENOMEM error on key read
#       KEYS: Don't write out to userspace while holding key semaphore
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# < make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
          ~~~~~~~^~~~~~~~~
/kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here
  int oldval, ret;
      ^~~~~~
/kisskb/src/lib/test_kasan.c: In function 'kasan_alloca_oob_left':
/kisskb/src/lib/test_kasan.c:547:1: warning: 'kasan_alloca_oob_left' uses dynamic stack allocation
 }
 ^
/kisskb/src/lib/test_kasan.c: In function 'kasan_alloca_oob_right':
/kisskb/src/lib/test_kasan.c:557:1: warning: 'kasan_alloca_oob_right' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^~~~~~~
In file included from /kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:40:
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c: In function 'mvpp2_setup_bm_pool':
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2.h:634:2: warning: overflow in conversion from 'long unsigned int' to 'int' changes value from '18446744073709551584' to '-32' [-Woverflow]
  ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
  ^
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2.h:699:33: note: in expansion of macro 'MVPP2_RX_MAX_PKT_SIZE'
 #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_SHORT_FRAME_SIZE)
                                 ^~~~~~~~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:580:41: note: in expansion of macro 'MVPP2_BM_SHORT_PKT_SIZE'
  mvpp2_pools[MVPP2_BM_SHORT].pkt_size = MVPP2_BM_SHORT_PKT_SIZE;
                                         ^~~~~~~~~~~~~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_s390-allmodconfig_s390x-gcc8
# Build took: 0:17:16.362167