Date:   Mon, 16 May 2022 08:42:31 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     linux-kernel@...r.kernel.org
Subject: Build regressions/improvements in v5.18-rc7

Below is the list of build error/warning regressions/improvements in
v5.18-rc7[1] compared to v5.17[2].

Summarized:
  - build errors: +16/-5
  - build warnings: +36/-21

JFYI, when comparing v5.18-rc7[1] to v5.18-rc6[3], the summaries are:
  - build errors: +2/-0
  - build warnings: +0/-0

Note that there may be false regressions, as some logs are incomplete.
Still, they're build errors/warnings.

Happy fixing! ;-)

Thanks to the linux-next team for providing the build service.

[1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/42226c989789d8da4af1de0c31070c96726d990c/ (all 131 configs)
[2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/f443e374ae131c168a065ea1748feac6b2e76613/ (96 out of 131 configs)
[3] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a/ (all 131 configs)


*** ERRORS ***

16 error regressions:
  + /kisskb/src/arch/m68k/include/asm/bitops.h: error: array subscript 2 is above array bounds of 'long unsigned int[1]' [-Werror=array-bounds]:  => 329:20
  + /kisskb/src/arch/sh/kernel/machvec.c: error: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Werror=array-bounds]:  => 105:33
  + /kisskb/src/arch/sparc/kernel/irq_32.c: error: array subscript [16, 79] is outside array bounds of 'struct tt_entry[1]' [-Werror=array-bounds]:  => 262:14, 258:14, 261:46, 263:14, 259:14
  + /kisskb/src/drivers/gpu/drm/r128/r128_cce.c: error: case label does not reduce to an integer constant:  => 418:2, 417:2
  + /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: 'X86_VENDOR_AMD' undeclared (first use in this function):  => 149:37
  + /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: 'struct cpuinfo_um' has no member named 'x86_vendor':  => 149:22
  + /kisskb/src/drivers/infiniband/hw/qib/qib_wc_x86_64.c: error: control reaches end of non-void function [-Werror=return-type]:  => 150:1
  + /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: 'struct cpuinfo_um' has no member named 'x86_cache_size':  => 88:22
  + /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: control reaches end of non-void function [-Werror=return-type]:  => 89:1
  + /kisskb/src/drivers/infiniband/sw/rdmavt/qp.c: error: implicit declaration of function '__copy_user_nocache' [-Werror=implicit-function-declaration]:  => 100:2
  + /kisskb/src/drivers/media/platform/nxp/imx-pxp.h: error: initializer element is not constant:  => 582:38
  + /kisskb/src/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c: error: case label does not reduce to an integer constant:  => 4917:4
  + /kisskb/src/drivers/scsi/aacraid/commsup.c: error: case label does not reduce to an integer constant:  => 1983:2
  + /kisskb/src/include/linux/fortify-string.h: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]:  => 328:25
  + /kisskb/src/include/linux/sh_intc.h: error: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Werror=sizeof-pointer-div]:  => 100:63
  + {standard input}: Error: branch to a symbol in another ISA mode:  => 1295

5 error improvements:
  - /kisskb/src/drivers/vfio/pci/vfio_pci_rdwr.c: error: assignment makes pointer from integer without a cast [-Werror=int-conversion]: 324:9, 317:9 => 
  - /kisskb/src/drivers/vfio/pci/vfio_pci_rdwr.c: error: implicit declaration of function 'ioport_map' [-Werror=implicit-function-declaration]: 317:11 => 
  - /kisskb/src/drivers/vfio/pci/vfio_pci_rdwr.c: error: implicit declaration of function 'ioport_unmap' [-Werror=implicit-function-declaration]: 338:15 => 
  - error: arch/powerpc/kvm/book3s_64_entry.o: relocation truncated to fit: R_PPC64_REL14 (stub) against symbol `machine_check_common' defined in .text section in arch/powerpc/kernel/head_64.o: (.text+0x3e4) => 
  - error: arch/powerpc/kvm/book3s_64_entry.o: relocation truncated to fit: R_PPC64_REL14 (stub) against symbol `system_reset_common' defined in .text section in arch/powerpc/kernel/head_64.o: (.text+0x3ec) => 


*** WARNINGS ***

36 warning regressions:
  + ./.config.32r1_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 94
  + ./.config.32r2_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 94
  + ./.config.32r6_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 96
  + ./.config.64r1_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 97
  + ./.config.64r2_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 97
  + ./.config.64r6_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 99
  + ./.config.micro32r2_defconfig: warning: override: CPU_BIG_ENDIAN changes choice state:  => 95
  + .config: warning: override: CPU_BIG_ENDIAN changes choice state:  => 94, 98, 95, 93, 96
  + .config: warning: override: reassigning to symbol MIPS_CPS_NS16550_SHIFT: 13516, 13503 => 13769, 13763, 13758
  + /kisskb/src/arch/m68k/include/asm/string.h: warning: '__builtin_memset' offset [0, 11] is out of the bounds [0, 0] [-Warray-bounds]:  => 68:25
  + /kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Warning: overflow in branch to __restore_all; converted into longer instruction sequence:  => 85
  + /kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence:  => 357, 360
  + /kisskb/src/arch/sh/kernel/machvec.c: warning: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Warray-bounds]:  => 105:33
  + /kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c: warning: array subscript 1 is above array bounds of 'volatile struct transmit_cmd_struct *[1]' [-Warray-bounds]:  => 989:108, 989:122
  + /kisskb/src/drivers/scsi/mpt3sas/mpt3sas_base.c: warning: array subscript 'Mpi2SasIOUnitPage1_t {aka struct _MPI2_CONFIG_PAGE_SASIOUNIT_1}[0]' is partly outside array bounds of 'unsigned char[20]' [-Warray-bounds]:  => 5403:43, 5400:40, 5396:40
  + /kisskb/src/fs/ext4/readpage.c: warning: the frame size of 1136 bytes is larger than 1024 bytes [-Wframe-larger-than=]:  => 407:1
  + /kisskb/src/fs/mpage.c: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=]:  => 303:1
  + /kisskb/src/fs/mpage.c: warning: the frame size of 1148 bytes is larger than 1024 bytes [-Wframe-larger-than=]:  => 636:1
  + /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/../lib/gcc/aarch64-linux/5.5.0/plugin/include/config/elfos.h: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]:  => 102:21, 170:24
  + /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/../lib/gcc/aarch64-linux/5.5.0/plugin/include/defaults.h: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]:  => 126:24
  + modpost: WARNING: modpost: EXPORT symbol "___rw_read_enter" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "___rw_read_exit" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "___rw_read_try" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "___rw_write_enter" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__ashldi3" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__ashrdi3" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__copy_1page" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__divdi3" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__lshrdi3" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__muldi3" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__ndelay" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "__udelay" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "bzero_1page" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.:  => N/A
  + modpost: WARNING: modpost: vmlinux.o(.text.unlikely+0x45d4): Section mismatch in reference from the function __trace_event_discard_commit() to the variable .init.data:initcall_level_names:  => N/A

21 warning improvements:
  - /kisskb/src/samples/seccomp/user-trap.c: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]: 50:2, 83:2 => 
  - /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]: 102:21, 170:24 => 
  - /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/defaults.h: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]: 126:24 => 
  - modpost: WARNING: modpost: EXPORT symbol "___rw_read_enter" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "___rw_read_exit" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "___rw_read_try" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "___rw_write_enter" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__ashldi3" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__ashrdi3" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__copy_1page" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__divdi3" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__lshrdi3" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__muldi3" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__ndelay" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "__udelay" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "bzero_1page" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: EXPORT symbol "empty_zero_page" [vmlinux] version ...: N/A => 
  - modpost: WARNING: modpost: vmlinux.o(.text.unlikely+0x4530): Section mismatch in reference from the function __trace_event_discard_commit() to the variable .init.data:initcall_level_names: N/A => 
  - warning: LSE atomics not supported by binutils: N/A => 
  - warning: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum: N/A => 

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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