# git rev-parse -q --verify 21f9c8a13bb2a0c24d9c6b86bc0896542a28c197^{commit}
21f9c8a13bb2a0c24d9c6b86bc0896542a28c197
already have revision, skipping fetch
# git checkout -q -f -B kisskb 21f9c8a13bb2a0c24d9c6b86bc0896542a28c197
# git clean -qxdf
# < git log -1
# commit 21f9c8a13bb2a0c24d9c6b86bc0896542a28c197
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Aug 11 08:40:01 2022 -0700
# 
#     Revert "Makefile.extrawarn: re-enable -Wformat for clang"
#     
#     This reverts commit 258fafcd0683d9ccfa524129d489948ab3ddc24c.
#     
#     The clang -Wformat warning is terminally broken, and the clang people
#     can't seem to get their act together.
#     
#     This test program causes a warning with clang:
#     
#             #include <stdio.h>
#     
#             int main(int argc, char **argv)
#             {
#                     printf("%hhu\n", 'a');
#             }
#     
#     resulting in
#     
#       t.c:5:19: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
#               printf("%hhu\n", 'a');
#                       ~~~~     ^~~
#                       %d
#     
#     and apparently clang people consider that a feature, because they don't
#     want to face the reality of how either C character constants, C
#     arithmetic, and C varargs functions work.
#     
#     The rest of the world just shakes their head at that kind of
#     incompetence, and turns off -Wformat for clang again.
#     
#     And no, the "you should use a pointless cast to shut this up" is not a
#     valid answer.  That warning should not exist in the first place, or at
#     least be optinal with some "-Wformat-me-harder" kind of option.
#     
#     [ Admittedly, there's also very little reason to *ever* use '%hh[ud]' in
#       C, but what little reason there is is entirely about 'I want to see
#       only the low 8 bits of the argument'. So I would suggest nobody ever
#       use that format in the first place, but if they do, the clang
#       behavious is simply always wrong. Because '%hhu' takes an 'int'. It's
#       that simple. ]
#     
#     Reported-by: Sudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com>
#     Cc: Nick Desaulniers <ndesaulniers@google.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 21f9c8a13bb2a0c24d9c6b86bc0896542a28c197
# < make -s -j 120 ARCH=sh O=/kisskb/build/linus_sh-defconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  defconfig
# < make -s -j 120 ARCH=sh O=/kisskb/build/linus_sh-defconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 120 ARCH=sh O=/kisskb/build/linus_sh-defconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 120 ARCH=sh O=/kisskb/build/linus_sh-defconfig_sh4-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/machvec.c: In function 'sh_mv_setup':
/kisskb/src/arch/sh/kernel/machvec.c:105:33: warning: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Warray-bounds]
  105 |                         sh_mv = *(struct sh_machine_vector *)&__machvec_start;
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /kisskb/src/arch/sh/kernel/machvec.c:13:
/kisskb/src/arch/sh/include/asm/sections.h:7:13: note: while referencing '__machvec_start'
    7 | extern long __machvec_start, __machvec_end;
      |             ^~~~~~~~~~~~~~~
In file included from /kisskb/src/arch/sh/include/asm/hw_irq.h:6,
                 from /kisskb/src/include/linux/irq.h:596,
                 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/sh4a/setup-shx3.c:10:
/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:107:9: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |         ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh4a/setup-shx3.c:309:8: note: in expansion of macro 'DECLARE_INTC_DESC'
  309 | static DECLARE_INTC_DESC(intc_desc, "shx3", vectors, groups,
      |        ^~~~~~~~~~~~~~~~~
/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:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh4a/setup-shx3.c:309:8: note: in expansion of macro 'DECLARE_INTC_DESC'
  309 | static DECLARE_INTC_DESC(intc_desc, "shx3", vectors, groups,
      |        ^~~~~~~~~~~~~~~~~
/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:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh4a/setup-shx3.c:322:8: note: in expansion of macro 'DECLARE_INTC_DESC'
  322 | static DECLARE_INTC_DESC(intc_desc_irq, "shx3-irq", vectors_irq, groups,
      |        ^~~~~~~~~~~~~~~~~
/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:107:9: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |         ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh4a/setup-shx3.c:337:8: note: in expansion of macro 'DECLARE_INTC_DESC'
  337 | static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups,
      |        ^~~~~~~~~~~~~~~~~
/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:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
      |               ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh4a/setup-shx3.c:337:8: note: in expansion of macro 'DECLARE_INTC_DESC'
  337 | static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/fs/ext4/readpage.c: In function 'ext4_mpage_readpages':
/kisskb/src/fs/ext4/readpage.c:407:1: warning: the frame size of 1132 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  407 | }
      | ^
/kisskb/src/fs/mpage.c: In function '__mpage_writepage':
/kisskb/src/fs/mpage.c:634:1: warning: the frame size of 1144 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  634 | }
      | ^
/kisskb/src/fs/mpage.c: In function 'do_mpage_readpage':
/kisskb/src/fs/mpage.c:308:1: warning: the frame size of 1092 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  308 | }
      | ^
  Kernel: arch/sh/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sh-defconfig_sh4-gcc11
# Build took: 0:00:27.847251