spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested'

23 Nov 2021


      While building Linux next 20211123 tag for sh with gcc-11
following warnings / errors noticed.
make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=sh
CROSS_COMPILE=sh4-linux-gnu- 'CC=sccache sh4-linux-gnu-gcc'
'HOSTCC=sccache gcc'
  Generating include/generated/machtypes.h
<stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
In file included from arch/sh/include/asm/hw_irq.h:6,
                 from include/linux/irq.h:594,
                 from include/asm-generic/hardirq.h:17,
                 from arch/sh/include/asm/hardirq.h:9,
                 from include/linux/hardirq.h:11,
                 from include/linux/interrupt.h:11,
                 from include/linux/serial_core.h:13,
                 from include/linux/serial_sci.h:6,
                 from arch/sh/kernel/cpu/sh4a/setup-shx3.c:10:
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)
      |                                                               ^
include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |         ^~~~~~~~~~~
include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,
         \
      |               ^~~~~~~~~~~~
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,
      |        ^~~~~~~~~~~~~~~~~
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)
      |                                                               ^
include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,
         \
      |               ^~~~~~~~~~~~
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,
      |        ^~~~~~~~~~~~~~~~~
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)
      |                                                               ^
include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,
         \
      |               ^~~~~~~~~~~~
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,
      |        ^~~~~~~~~~~~~~~~~
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)
      |                                                               ^
include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |         ^~~~~~~~~~~
include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,
         \
      |               ^~~~~~~~~~~~
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,
      |        ^~~~~~~~~~~~~~~~~
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)
      |                                                               ^
include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
  107 |         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                                  ^~~~~~~~~~~
include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
  124 |         .hw = INTC_HW_DESC(vectors, groups, mask_regs,
         \
      |               ^~~~~~~~~~~~
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,
      |        ^~~~~~~~~~~~~~~~~
kernel/locking/spinlock.c: In function '_raw_write_lock_nested':
kernel/locking/spinlock.c:306:9: error: implicit declaration of
function '__raw_write_lock_nested'; did you mean
'_raw_write_lock_nested'? [-Werror=implicit-function-declaration]
  306 |         __raw_write_lock_nested(lock, subclass);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
      |         _raw_write_lock_nested
cc1: some warnings being treated as errors
make[3]: *** [scripts/Makefile.build:288: kernel/locking/spinlock.o] Error 1
make[3]: Target '__build' not remade because of errors.
make[2]: *** [scripts/Makefile.build:571: kernel/locking] Error 2
fs/ext4/readpage.c: In function 'ext4_mpage_readpages':
fs/ext4/readpage.c:413:1: warning: the frame size of 1140 bytes is
larger than 1024 bytes [-Wframe-larger-than=]
  413 | }
      | ^
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1989: kernel] Error 2
fs/mpage.c: In function '__mpage_writepage':
fs/mpage.c:672:1: warning: the frame size of 1156 bytes is larger than
1024 bytes [-Wframe-larger-than=]
  672 | }
      | ^
fs/mpage.c: In function 'do_mpage_readpage':
fs/mpage.c:336:1: warning: the frame size of 1092 bytes is larger than
1024 bytes [-Wframe-larger-than=]
  336 | }
      | ^
make[1]: Target '__all' not remade because of errors.
make: *** [Makefile:226: __sub-make] Error 2
make: Target '__all' not remade because of errors.
Build config:
https://builds.tuxbuild.com/21J9mb3wsbGi616UxQbxP3DSTGv/config
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
meta data:
-----------
    git describe: next-20211123
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
    git_sha: aacdecce8147c20b01f865b4e214bb8dbe8c4af1
    git_short_log: aacdecce8147 ("Add linux-next specific files for 20211123")
    target_arch: sh
    toolchain: gcc-11
steps to reproduce:
tuxmake --runtime podman --target-arch sh --toolchain gcc-11 --kconfig
shx3_defconfig
https://builds.tuxbuild.com/21J9mb3wsbGi616UxQbxP3DSTGv/tuxmake_reproducer.s...
--
Linaro LKFT
https://lkft.linaro.org

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spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested'