# git rev-parse -q --verify 0460534b532e5518c657c7d6492b9337d975eaa3^{commit}
0460534b532e5518c657c7d6492b9337d975eaa3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0460534b532e5518c657c7d6492b9337d975eaa3
# git clean -qxdf
# < git log -1
# commit 0460534b532e5518c657c7d6492b9337d975eaa3
# Author: Vaibhav Jain <vaibhav@linux.ibm.com>
# Date:   Mon Sep 7 16:35:40 2020 +0530
# 
#     powerpc/papr_scm: Limit the readability of 'perf_stats' sysfs attribute
#     
#     The newly introduced 'perf_stats' attribute uses the default access
#     mode of 0444, allowing non-root users to access performance stats of
#     an nvdimm and potentially force the kernel into issuing a large number
#     of expensive hypercalls. Since the information exposed by this
#     attribute cannot be cached it is better to ward off access to this
#     attribute from users who don't need to access to these performance
#     statistics.
#     
#     Hence update the access mode of 'perf_stats' attribute to be only
#     readable by root users.
#     
#     Fixes: 2d02bf835e57 ("powerpc/papr_scm: Fetch nvdimm performance stats from PHYP")
#     Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
#     Reviewed-by: Ira Weiny <ira.weiny@intel.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200907110540.21349-1-vaibhav@linux.ibm.com
# < /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 0460534b532e5518c657c7d6492b9337d975eaa3
# < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  defconfig
# < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  help
# make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  olddefconfig
# make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
FIT description: Linux 5.9.0-rc1-47742-g0460534b532e
Created:         Fri Sep 11 01:41:14 2020
 Image 0 (kernel@0)
  Description:  Linux 5.9.0-rc1-47742-g0460534b532e
  Created:      Fri Sep 11 01:41:14 2020
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    5072656 Bytes = 4953.77 KiB = 4.84 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x80953ca0
  Hash algo:    sha1
  Hash value:   21033fa477c2d611eee009241581b9e29b1c3d35
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Fri Sep 11 01:41:14 2020
  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:      Fri Sep 11 01:41:14 2020
  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@ocelot_pcb123)
  Description:  MSCC Ocelot PCB123 Device Tree
  Created:      Fri Sep 11 01:41:14 2020
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    4639 Bytes = 4.53 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   be2724f58b66c316a61da7c11ced633f4e7e86c7
 Image 4 (fdt@ocelot_pcb120)
  Description:  MSCC Ocelot PCB120 Device Tree
  Created:      Fri Sep 11 01:41:14 2020
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    5398 Bytes = 5.27 KiB = 0.01 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   2a757b83ef9e9d35fb6c43bdbde70d311b3e4555
 Image 5 (fdt@xilfpga)
  Description:  MIPSfpga (xilfpga) Device Tree
  Created:      Fri Sep 11 01:41:14 2020
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    2708 Bytes = 2.64 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   63d058b780f65e22da30f0a183433765f1807f1d
 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@ocelot_pcb123)
  Description:  Ocelot Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@ocelot_pcb123
 Configuration 4 (conf@ocelot_pcb120)
  Description:  Ocelot Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@ocelot_pcb120
 Configuration 5 (conf@xilfpga)
  Description:  MIPSfpga Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@xilfpga
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mipsel
# Build took: 0:01:46.141562