# git rev-parse -q --verify 6929f71e46bdddbf1c4d67c2728648176c67c555^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 6929f71e46bdddbf1c4d67c2728648176c67c555^{commit}
6929f71e46bdddbf1c4d67c2728648176c67c555
# git checkout -q -f -B kisskb 6929f71e46bdddbf1c4d67c2728648176c67c555
# git clean -qxdf
# < git log -1
# commit 6929f71e46bdddbf1c4d67c2728648176c67c555
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Jun 3 21:22:46 2020 -0700
# 
#     atomisp: avoid warning about unused function
#     
#     The atomisp_mrfld_power() function isn't actually ever called, because
#     the two call-sites have commented out the use because it breaks on some
#     platforms.  That results in:
#     
#       drivers/staging/media/atomisp/pci/atomisp_v4l2.c:764:12: warning: ‘atomisp_mrfld_power’ defined but not used [-Wunused-function]
#         764 | static int atomisp_mrfld_power(struct atomisp_device *isp, bool enable)
#             |            ^~~~~~~~~~~~~~~~~~~
#     
#     during the build.
#     
#     Rather than commenting out the use entirely, just disable it
#     semantically instead (using a "0 &&" construct), leaving the call in
#     place from a syntax standpoint, and avoiding the warning.
#     
#     I really don't want my builds to have any warnings that can then hide
#     real issues.
#     
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 6929f71e46bdddbf1c4d67c2728648176c67c555
# < make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0x7DEC4B6E
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# < make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:5930:warning: override: reassigning to symbol STANDALONE
.config:5931:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/security/smack/smack_lsm.c: In function 'smack_socket_connect':
/kisskb/src/security/smack/smack_lsm.c:2838:24: warning: unused variable 'sip' [-Wunused-variable]
   struct sockaddr_in6 *sip = (struct sockaddr_in6 *)sap;
                        ^~~
/kisskb/src/net/core/filter.c: In function '_bpf_setsockopt':
/kisskb/src/net/core/filter.c:4291:6: warning: unused variable 'ifindex' [-Wunused-variable]
  int ifindex;
      ^~~~~~~
/kisskb/src/net/core/filter.c:4290:14: warning: unused variable 'net' [-Wunused-variable]
  struct net *net;
              ^~~
/kisskb/src/net/core/filter.c:4289:7: warning: unused variable 'devname' [-Wunused-variable]
  char devname[IFNAMSIZ];
       ^~~~~~~
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c: In function 'amdgpu_bo_support_uswc':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:494:2: warning: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp]
 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
  ^~~~~~~
/kisskb/src/drivers/gpu/drm/radeon/radeon_object.c: In function 'radeon_bo_create':
/kisskb/src/drivers/gpu/drm/radeon/radeon_object.c:243:2: warning: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp]
 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
  ^~~~~~~
arch/x86/tools/insn_decoder_test: success: Decoded and checked 6650315 instructions
arch/x86/tools/insn_sanity: Success: decoded and checked 1000000 random instructions with 0 errors (seed:0xfc42e519)
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:07:47.384231