# git rev-parse -q --verify 6e693b3ffecb0b478c7050b44a4842854154f715^{commit}
6e693b3ffecb0b478c7050b44a4842854154f715
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6e693b3ffecb0b478c7050b44a4842854154f715
# git clean -qxdf
# < git log -1
# commit 6e693b3ffecb0b478c7050b44a4842854154f715
# Author: Will Deacon <will.deacon@arm.com>
# Date:   Sat Jan 19 21:56:05 2019 +0000
# 
#     x86: uaccess: Inhibit speculation past access_ok() in user_access_begin()
#     
#     Commit 594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'")
#     makes the access_ok() check part of the user_access_begin() preceding a
#     series of 'unsafe' accesses.  This has the desirable effect of ensuring
#     that all 'unsafe' accesses have been range-checked, without having to
#     pick through all of the callsites to verify whether the appropriate
#     checking has been made.
#     
#     However, the consolidated range check does not inhibit speculation, so
#     it is still up to the caller to ensure that they are not susceptible to
#     any speculative side-channel attacks for user addresses that ultimately
#     fail the access_ok() check.
#     
#     This is an oversight, so use __uaccess_begin_nospec() to ensure that
#     speculation is inhibited until the access_ok() check has passed.
#     
#     Reported-by: Julien Thierry <julien.thierry@arm.com>
#     Signed-off-by: Will Deacon <will.deacon@arm.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version
# < git log --format=%s --max-count=1 6e693b3ffecb0b478c7050b44a4842854154f715
# < make -s -j 120 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  defconfig
# make -s -j 120 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
/kisskb/src/arch/mips/boot/dts/xilfpga/nexys4ddr.dts:109.16-112.8: Warning (i2c_bus_reg): /i2c@10A00000/ad7420@4B: I2C bus unit address format error, expected "4b"
FIT description: Linux 5.0.0-rc2-g6e693b3ffecb
Created:         Sun Jan 20 16:18:34 2019
 Image 0 (kernel@0)
  Description:  Linux 5.0.0-rc2-g6e693b3ffecb
  Created:      Sun Jan 20 16:18:34 2019
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    4501986 Bytes = 4396.47 KiB = 4.29 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x80854d10
  Hash algo:    sha1
  Hash value:   77c8fc5d86abed4846860c8b53c17a0fe81e3395
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Sun Jan 20 16:18:34 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    3793 Bytes = 3.70 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   4799f50d688573234da6e9d7701234d394759ef4
 Image 2 (fdt@ni169445)
  Description:  NI 169445 device tree
  Created:      Sun Jan 20 16:18:34 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    1871 Bytes = 1.83 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   51b89b31605ee62038c8468c429af091dfc75ec7
 Image 3 (fdt@xilfpga)
  Description:  MIPSfpga (xilfpga) Device Tree
  Created:      Sun Jan 20 16:18:34 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    2708 Bytes = 2.64 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   509ce58e44c561d54539e64e9d4b47054e696fc6
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
 Configuration 1 (conf@boston)
  Description:  Boston Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@boston
 Configuration 2 (conf@ni169445)
  Description:  NI 169445 Linux Kernel
  Kernel:       kernel@0
  FDT:          fdt@ni169445
 Configuration 3 (conf@xilfpga)
  Description:  MIPSfpga Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@xilfpga
Completed OK
# rm -rf /kisskb/build/linus_mips-defconfig_mipsel
# Build took: 0:01:00.045539