# git rev-parse -q --verify 57fa2369ab17d67e6232f85b868652fbf4407206^{commit}
57fa2369ab17d67e6232f85b868652fbf4407206
already have revision, skipping fetch
# git checkout -q -f -B kisskb 57fa2369ab17d67e6232f85b868652fbf4407206
# git clean -qxdf
# < git log -1
# commit 57fa2369ab17d67e6232f85b868652fbf4407206
# Merge: 2fbc66c7838a 9186ad8e66ba
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Apr 27 10:16:46 2021 -0700
# 
#     Merge tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
#     
#     Pull CFI on arm64 support from Kees Cook:
#      "This builds on last cycle's LTO work, and allows the arm64 kernels to
#       be built with Clang's Control Flow Integrity feature. This feature has
#       happily lived in Android kernels for almost 3 years[1], so I'm excited
#       to have it ready for upstream.
#     
#       The wide diffstat is mainly due to the treewide fixing of mismatched
#       list_sort prototypes. Other things in core kernel are to address
#       various CFI corner cases. The largest code portion is the CFI runtime
#       implementation itself (which will be shared by all architectures
#       implementing support for CFI). The arm64 pieces are Acked by arm64
#       maintainers rather than coming through the arm64 tree since carrying
#       this tree over there was going to be awkward.
#     
#       CFI support for x86 is still under development, but is pretty close.
#       There are a handful of corner cases on x86 that need some improvements
#       to Clang and objtool, but otherwise works well.
#     
#       Summary:
#     
#        - Clean up list_sort prototypes (Sami Tolvanen)
#     
#        - Introduce CONFIG_CFI_CLANG for arm64 (Sami Tolvanen)"
#     
#     * tag 'cfi-v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
#       arm64: allow CONFIG_CFI_CLANG to be selected
#       KVM: arm64: Disable CFI for nVHE
#       arm64: ftrace: use function_nocfi for ftrace_call
#       arm64: add __nocfi to __apply_alternatives
#       arm64: add __nocfi to functions that jump to a physical address
#       arm64: use function_nocfi with __pa_symbol
#       arm64: implement function_nocfi
#       psci: use function_nocfi for cpu_resume
#       lkdtm: use function_nocfi
#       treewide: Change list_sort to use const pointers
#       bpf: disable CFI in dispatcher functions
#       kallsyms: strip ThinLTO hashes from static functions
#       kthread: use WARN_ON_FUNCTION_MISMATCH
#       workqueue: use WARN_ON_FUNCTION_MISMATCH
#       module: ensure __cfi_check alignment
#       mm: add generic function_nocfi macro
#       cfi: add __cficanonical
#       add support for Clang CFI
# < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 57fa2369ab17d67e6232f85b868652fbf4407206
# < make -s -j 32 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  se7619_defconfig
# < make -s -j 32 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 32 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 32 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/sh/include/asm/hw_irq.h:6,
                 from /kisskb/src/include/linux/irq.h:589,
                 from /kisskb/src/include/asm-generic/hardirq.h:17,
                 from /kisskb/src/arch/sh/include/asm/hardirq.h:9,
                 from /kisskb/src/include/linux/hardirq.h:11,
                 from /kisskb/src/include/linux/interrupt.h:11,
                 from /kisskb/src/include/linux/serial_core.h:13,
                 from /kisskb/src/include/linux/serial_sci.h:6,
                 from /kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:11:
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:105:24: note: in expansion of macro '_INTC_ARRAY'
  105 |  _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
      |                        ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:106:2: note: in expansion of macro '_INTC_ARRAY'
  106 |  _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
      |  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:2: note: in expansion of macro '_INTC_ARRAY'
  107 |  _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:27: note: in expansion of macro '_INTC_ARRAY'
  107 |  _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                           ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/traps.c: In function 'nmi_trap_handler':
/kisskb/src/arch/sh/kernel/traps.c:183:15: warning: unused variable 'cpu' [-Wunused-variable]
  183 |  unsigned int cpu = smp_processor_id();
      |               ^~~
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_remap_port':
/kisskb/src/drivers/tty/serial/sh-sci.c:2666:19: warning: unused variable 'sport' [-Wunused-variable]
 2666 |  struct sci_port *sport = to_sci_port(port);
      |                   ^~~~~
Completed OK
# rm -rf /kisskb/build/linus_se7619_defconfig_sh4-gcc10
# Build took: 0:00:35.183976