Build regressions/improvements in v5.17-rc1

Build regressions/improvements in v5.17-rc1

[Geert Uytterhoeven]

Below is the list of build error/warning regressions/improvements in
v5.17-rc1[1] compared to v5.16[2].

Summarized:
  - build errors: +17/-2
  - build warnings: +23/-25

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/e783362eb54cd99b2cac8b3a9aeac942e6f6ac07/ (all 99 configs)
[2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/df0cc57e057f18e44dac8e6c18aba47ab53202f9/ (98 out of 99 configs)


*** ERRORS ***

17 error regressions:
  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_cpu_backtrace' [-Werror=implicit-function-declaration]:  => 171:2
  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_trigger_cpumask_backtrace' [-Werror=implicit-function-declaration]:  => 226:2
  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1756:13, 1639:13
  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1674:29, 1662:29
  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1767:21
  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1741:29, 1726:29
  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int,  long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1694:29, 1711:29
  + /kisskb/src/arch/um/include/asm/processor-generic.h: error: called object is not a function or function pointer:  => 103:18
  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1
  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error: passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 659:29
  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 815:8, 815:29
  + /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
  + /kisskb/src/lib/test_printf.c: error: "PTR" redefined [-Werror]:  => 247:0, 247
  + /kisskb/src/sound/pci/ca0106/ca0106.h: error: "PTR" redefined [-Werror]:  => 62, 62:0
  + 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)

2 error improvements:
  - /kisskb/src/drivers/mtd/nand/raw/mpc5121_nfc.c: error: unused variable 'mtd' [-Werror=unused-variable]: 294:19 => 
  - /kisskb/src/drivers/video/fbdev/riva/fbdev.c: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers]: 2095:11, 2062:11 => 


*** WARNINGS ***

23 warning regressions:
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14410): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14428): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14440): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14458): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14470): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14488): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x144a0): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x144f0): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14508): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14520): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14538): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14550): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14568): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14580): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x14598): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4790): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x47a8): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x47c0): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x47d8): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x47f0): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4808): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4820): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000:  => N/A
  + modpost: WARNING: modpost: vmlinux.o(.text.unlikely+0x4540): Section mismatch in reference from the function __trace_event_discard_commit() to the variable .init.data:initcall_level_names:  => N/A

25 warning improvements:
  - arch/m68k/configs/multi_defconfig: warning: symbol value 'm' invalid for MCTP: 322 => 
  - arch/m68k/configs/sun3_defconfig: warning: symbol value 'm' invalid for MCTP: 295 => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x136d0): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x136e8): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13700): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13718): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13730): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13748): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13760): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x137b0): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x137c8): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x137e0): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x137f8): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13810): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13828): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13840): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qed/qed.o(.data+0x13858): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:qed_mfw_legacy_bb_100g: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4610): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4628): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4640): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4658): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4670): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x4688): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: drivers/net/ethernet/qlogic/qede/qede.o(.data+0x46a0): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:qede_forced_speed_100000: N/A => 
  - modpost: WARNING: modpost: vmlinux.o(.text.unlikely+0x45e4): Section mismatch in reference from the function __trace_event_discard_commit() to the variable .init.data:initcall_level_names: N/A => 

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

Re: Build regressions/improvements in v5.17-rc1

[Geert Uytterhoeven]

On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
> Below is the list of build error/warning regressions/improvements in
> v5.17-rc1[1] compared to v5.16[2].
>
> Summarized:
>  - build errors: +17/-2
>  - build warnings: +23/-25
>
> 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/e783362eb54cd99b2cac8b3a9aeac942e6f6ac07/ (all 99 configs)
> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/df0cc57e057f18e44dac8e6c18aba47ab53202f9/ (98 out of 99 configs)
>
>
> *** ERRORS ***
>
> 17 error regressions:
>  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_cpu_backtrace' [-Werror=implicit-function-declaration]:  => 171:2
>  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_trigger_cpumask_backtrace' [-Werror=implicit-function-declaration]:  => 226:2

powerpc-gcc5/skiroot_defconfig

>  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1756:13, 1639:13
>  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1674:29, 1662:29
>  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1767:21
>  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1741:29, 1726:29
>  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int,  long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1694:29, 1711:29

sparc64-gcc11/sparc-allmodconfig

>  + /kisskb/src/arch/um/include/asm/processor-generic.h: error: called object is not a function or function pointer:  => 103:18
>  + /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

um-x86_64/um-allyesconfig

>  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1

um-x86_64/um-all{mod,yes}config

>  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error: passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 659:29

powerpc-gcc5/ppc32_allmodconfig

>  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 815:8, 815:29

arm64-gcc5.4/arm64-allmodconfig
arm64-gcc8/arm64-allmodconfig

>  + /kisskb/src/lib/test_printf.c: error: "PTR" redefined [-Werror]:  => 247:0, 247
>  + /kisskb/src/sound/pci/ca0106/ca0106.h: error: "PTR" redefined [-Werror]:  => 62, 62:0

mips-gcc8/mips-allmodconfig
mipsel/mips-allmodconfig

>  + 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)

powerpc-gcc5/powerpc-allyesconfig

Gr{oetje,eeting}s,

 						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

Re: Build regressions/improvements in v5.17-rc1

[Jakub Kicinski]

On Mon, 24 Jan 2022 08:55:40 +0100 (CET) Geert Uytterhoeven wrote:
> >  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error: passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 659:29  
> 
> powerpc-gcc5/ppc32_allmodconfig
> 
> >  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 815:8, 815:29  
> 
> arm64-gcc5.4/arm64-allmodconfig
> arm64-gcc8/arm64-allmodconfig

Let me take care of these in net.

Re: Build regressions/improvements in v5.17-rc1

[Jakub Kicinski]

On Mon, 24 Jan 2022 09:04:33 -0800 Jakub Kicinski wrote:
> On Mon, 24 Jan 2022 08:55:40 +0100 (CET) Geert Uytterhoeven wrote:
> > >  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error: passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 659:29    
> > 
> > powerpc-gcc5/ppc32_allmodconfig

Sent:
https://lore.kernel.org/r/20220124172249.2827138-1-kuba@kernel.org/

> > >  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 815:8, 815:29    
> > 
> > arm64-gcc5.4/arm64-allmodconfig
> > arm64-gcc8/arm64-allmodconfig  

I take this one back, that's not me.

Re: Build regressions/improvements in v5.17-rc1

[Alex Deucher]

On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
> > Below is the list of build error/warning regressions/improvements in
> > v5.17-rc1[1] compared to v5.16[2].
> >
> > Summarized:
> >  - build errors: +17/-2
> >  - build warnings: +23/-25
> >
> > 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/e783362eb54cd99b2cac8b3a9aeac942e6f6ac07/ (all 99 configs)
> > [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/df0cc57e057f18e44dac8e6c18aba47ab53202f9/ (98 out of 99 configs)
> >
> >
> > *** ERRORS ***
> >
> > 17 error regressions:
> >  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_cpu_backtrace' [-Werror=implicit-function-declaration]:  => 171:2
> >  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit declaration of function 'nmi_trigger_cpumask_backtrace' [-Werror=implicit-function-declaration]:  => 226:2
>
> powerpc-gcc5/skiroot_defconfig
>
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1756:13, 1639:13
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1674:29, 1662:29
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct mm_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1767:21
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1741:29, 1726:29
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible function types from 'void (*)(struct vm_area_struct *, long unsigned int,  long unsigned int)' to 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:  => 1694:29, 1711:29
>
> sparc64-gcc11/sparc-allmodconfig
>
> >  + /kisskb/src/arch/um/include/asm/processor-generic.h: error: called object is not a function or function pointer:  => 103:18
> >  + /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
>
> um-x86_64/um-allyesconfig
>
> >  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1

I don't really see what's going on here:

#ifdef CONFIG_X86_64
return cpu_data(first_cpu_of_numa_node).apicid;
#else
return first_cpu_of_numa_node;
#endif

Alex

>
> um-x86_64/um-all{mod,yes}config
>
> >  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error: passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 659:29
>
> powerpc-gcc5/ppc32_allmodconfig
>
> >  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 815:8, 815:29
>
> arm64-gcc5.4/arm64-allmodconfig
> arm64-gcc8/arm64-allmodconfig
>
> >  + /kisskb/src/lib/test_printf.c: error: "PTR" redefined [-Werror]:  => 247:0, 247
> >  + /kisskb/src/sound/pci/ca0106/ca0106.h: error: "PTR" redefined [-Werror]:  => 62, 62:0
>
> mips-gcc8/mips-allmodconfig
> mipsel/mips-allmodconfig
>
> >  + 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)
>
> powerpc-gcc5/powerpc-allyesconfig
>
> Gr{oetje,eeting}s,
>
>                                                 Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

Re: Build regressions/improvements in v5.17-rc1

[Geert Uytterhoeven]

Hi Alex,

On Mon, Jan 24, 2022 at 7:52 PM Alex Deucher <alexdeucher@gmail.com> wrote:
> On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
> > >  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1
>
> I don't really see what's going on here:
>
> #ifdef CONFIG_X86_64
> return cpu_data(first_cpu_of_numa_node).apicid;
> #else
> return first_cpu_of_numa_node;
> #endif

Ah, the actual failure causing this was not included:

In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0,
                 from /kisskb/src/include/linux/mutex.h:19,
                 from /kisskb/src/include/linux/kernfs.h:11,
                 from /kisskb/src/include/linux/sysfs.h:16,
                 from /kisskb/src/include/linux/kobject.h:20,
                 from /kisskb/src/include/linux/pci.h:35,
                 from
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:25:
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In
function 'kfd_cpumask_to_apic_id':
/kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error:
called object is not a function or function pointer
 #define cpu_data (&boot_cpu_data)
                  ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9:
note: in expansion of macro 'cpu_data'
  return cpu_data(first_cpu_of_numa_node).apicid;
         ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1:
error: control reaches end of non-void function [-Werror=return-type]
 }
 ^

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

Re: Build regressions/improvements in v5.17-rc1

[Randy Dunlap]

On 1/24/22 10:55, Geert Uytterhoeven wrote:
> Hi Alex,
> 
> On Mon, Jan 24, 2022 at 7:52 PM Alex Deucher <alexdeucher@gmail.com> wrote:
>> On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
>>>>  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1
>>
>> I don't really see what's going on here:
>>
>> #ifdef CONFIG_X86_64
>> return cpu_data(first_cpu_of_numa_node).apicid;
>> #else
>> return first_cpu_of_numa_node;
>> #endif
> 
> Ah, the actual failure causing this was not included:
> 
> In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0,
>                  from /kisskb/src/include/linux/mutex.h:19,
>                  from /kisskb/src/include/linux/kernfs.h:11,
>                  from /kisskb/src/include/linux/sysfs.h:16,
>                  from /kisskb/src/include/linux/kobject.h:20,
>                  from /kisskb/src/include/linux/pci.h:35,
>                  from
> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:25:
> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In
> function 'kfd_cpumask_to_apic_id':
> /kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error:
> called object is not a function or function pointer
>  #define cpu_data (&boot_cpu_data)
>                   ^
> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9:
> note: in expansion of macro 'cpu_data'
>   return cpu_data(first_cpu_of_numa_node).apicid;
>          ^
> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1:
> error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^

ah yes, UML.
I have a bunch of UML fixes that I have been hesitant to post.

This is one of them.
What do people think about this?

thanks.

---
From: Randy Dunlap <rdunlap@infradead.org>


../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9: note: in expansion of macro ‘cpu_data’
  return cpu_data(first_cpu_of_numa_node).apicid;
         ^~~~~~~~
../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1: error: control reaches end of non-void function [-Werror=return-type]

../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_fill_iolink_info_for_cpu’:
../arch/um/include/asm/processor-generic.h:103:19: error: called object is not a function or function pointer
 #define cpu_data (&boot_cpu_data)
                  ~^~~~~~~~~~~~~~~
../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1688:27: note: in expansion of macro ‘cpu_data’
  struct cpuinfo_x86 *c = &cpu_data(0);
                           ^~~~~~~~
../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:7: error: dereferencing pointer to incomplete type ‘struct cpuinfo_x86’
  if (c->x86_vendor == X86_VENDOR_AMD)
       ^~
../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:23: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
  if (c->x86_vendor == X86_VENDOR_AMD)
                       ^~~~~~~~~~~~~~
                       X86_VENDOR_ANY

../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_create_vcrat_image_cpu’:
../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1742:11: warning: unused variable ‘entries’ [-Wunused-variable]
  uint32_t entries = 0;

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_crat.c     |    6 +++---
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c |    2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

--- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -1552,7 +1552,7 @@ static int kfd_cpumask_to_apic_id(const
 	first_cpu_of_numa_node = cpumask_first(cpumask);
 	if (first_cpu_of_numa_node >= nr_cpu_ids)
 		return -1;
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
 	return cpu_data(first_cpu_of_numa_node).apicid;
 #else
 	return first_cpu_of_numa_node;
--- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -1679,7 +1679,7 @@ static int kfd_fill_mem_info_for_cpu(int
 	return 0;
 }
 
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
 static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
 				uint32_t *num_entries,
 				struct crat_subtype_iolink *sub_type_hdr)
@@ -1738,7 +1738,7 @@ static int kfd_create_vcrat_image_cpu(vo
 	struct crat_subtype_generic *sub_type_hdr;
 	int avail_size = *size;
 	int numa_node_id;
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
 	uint32_t entries = 0;
 #endif
 	int ret = 0;
@@ -1803,7 +1803,7 @@ static int kfd_create_vcrat_image_cpu(vo
 			sub_type_hdr->length);
 
 		/* Fill in Subtype: IO Link */
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
 		ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size,
 				&entries,
 				(struct crat_subtype_iolink *)sub_type_hdr);

Re: Build regressions/improvements in v5.17-rc1

[Felix Kuehling]

Am 2022-01-24 um 14:11 schrieb Randy Dunlap:
> On 1/24/22 10:55, Geert Uytterhoeven wrote:
>> Hi Alex,
>>
>> On Mon, Jan 24, 2022 at 7:52 PM Alex Deucher <alexdeucher@gmail.com> wrote:
>>> On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>>> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
>>>>>   + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1
>>> I don't really see what's going on here:
>>>
>>> #ifdef CONFIG_X86_64
>>> return cpu_data(first_cpu_of_numa_node).apicid;
>>> #else
>>> return first_cpu_of_numa_node;
>>> #endif
>> Ah, the actual failure causing this was not included:
>>
>> In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0,
>>                   from /kisskb/src/include/linux/mutex.h:19,
>>                   from /kisskb/src/include/linux/kernfs.h:11,
>>                   from /kisskb/src/include/linux/sysfs.h:16,
>>                   from /kisskb/src/include/linux/kobject.h:20,
>>                   from /kisskb/src/include/linux/pci.h:35,
>>                   from
>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:25:
>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In
>> function 'kfd_cpumask_to_apic_id':
>> /kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error:
>> called object is not a function or function pointer
>>   #define cpu_data (&boot_cpu_data)
>>                    ^
>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9:
>> note: in expansion of macro 'cpu_data'
>>    return cpu_data(first_cpu_of_numa_node).apicid;
>>           ^
>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1:
>> error: control reaches end of non-void function [-Werror=return-type]
>>   }
>>   ^
> ah yes, UML.
> I have a bunch of UML fixes that I have been hesitant to post.
>
> This is one of them.
> What do people think about this?

Does it make sense to configure a UML kernel with a real device driver 
in the first place? Or should we just prevent enabling amdgpu for UML 
with a Kconfig dependency?

Regards,
   Felix


>
> thanks.
>
> ---
> From: Randy Dunlap <rdunlap@infradead.org>
>
>
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9: note: in expansion of macro ‘cpu_data’
>    return cpu_data(first_cpu_of_numa_node).apicid;
>           ^~~~~~~~
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1: error: control reaches end of non-void function [-Werror=return-type]
>
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_fill_iolink_info_for_cpu’:
> ../arch/um/include/asm/processor-generic.h:103:19: error: called object is not a function or function pointer
>   #define cpu_data (&boot_cpu_data)
>                    ~^~~~~~~~~~~~~~~
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1688:27: note: in expansion of macro ‘cpu_data’
>    struct cpuinfo_x86 *c = &cpu_data(0);
>                             ^~~~~~~~
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:7: error: dereferencing pointer to incomplete type ‘struct cpuinfo_x86’
>    if (c->x86_vendor == X86_VENDOR_AMD)
>         ^~
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:23: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
>    if (c->x86_vendor == X86_VENDOR_AMD)
>                         ^~~~~~~~~~~~~~
>                         X86_VENDOR_ANY
>
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_create_vcrat_image_cpu’:
> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1742:11: warning: unused variable ‘entries’ [-Wunused-variable]
>    uint32_t entries = 0;
>
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> ---
>   drivers/gpu/drm/amd/amdkfd/kfd_crat.c     |    6 +++---
>   drivers/gpu/drm/amd/amdkfd/kfd_topology.c |    2 +-
>   2 files changed, 4 insertions(+), 4 deletions(-)
>
> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> @@ -1552,7 +1552,7 @@ static int kfd_cpumask_to_apic_id(const
>   	first_cpu_of_numa_node = cpumask_first(cpumask);
>   	if (first_cpu_of_numa_node >= nr_cpu_ids)
>   		return -1;
> -#ifdef CONFIG_X86_64
> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>   	return cpu_data(first_cpu_of_numa_node).apicid;
>   #else
>   	return first_cpu_of_numa_node;
> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
> @@ -1679,7 +1679,7 @@ static int kfd_fill_mem_info_for_cpu(int
>   	return 0;
>   }
>   
> -#ifdef CONFIG_X86_64
> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>   static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
>   				uint32_t *num_entries,
>   				struct crat_subtype_iolink *sub_type_hdr)
> @@ -1738,7 +1738,7 @@ static int kfd_create_vcrat_image_cpu(vo
>   	struct crat_subtype_generic *sub_type_hdr;
>   	int avail_size = *size;
>   	int numa_node_id;
> -#ifdef CONFIG_X86_64
> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>   	uint32_t entries = 0;
>   #endif
>   	int ret = 0;
> @@ -1803,7 +1803,7 @@ static int kfd_create_vcrat_image_cpu(vo
>   			sub_type_hdr->length);
>   
>   		/* Fill in Subtype: IO Link */
> -#ifdef CONFIG_X86_64
> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>   		ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size,
>   				&entries,
>   				(struct crat_subtype_iolink *)sub_type_hdr);
>
>

Re: Build regressions/improvements in v5.17-rc1

[Randy Dunlap]

On 1/24/22 17:23, Felix Kuehling wrote:
> 
> Am 2022-01-24 um 14:11 schrieb Randy Dunlap:
>> On 1/24/22 10:55, Geert Uytterhoeven wrote:
>>> Hi Alex,
>>>
>>> On Mon, Jan 24, 2022 at 7:52 PM Alex Deucher <alexdeucher@gmail.com> wrote:
>>>> On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>>>>> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
>>>>>>   + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]:  => 1560:1
>>>> I don't really see what's going on here:
>>>>
>>>> #ifdef CONFIG_X86_64
>>>> return cpu_data(first_cpu_of_numa_node).apicid;
>>>> #else
>>>> return first_cpu_of_numa_node;
>>>> #endif
>>> Ah, the actual failure causing this was not included:
>>>
>>> In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0,
>>>                   from /kisskb/src/include/linux/mutex.h:19,
>>>                   from /kisskb/src/include/linux/kernfs.h:11,
>>>                   from /kisskb/src/include/linux/sysfs.h:16,
>>>                   from /kisskb/src/include/linux/kobject.h:20,
>>>                   from /kisskb/src/include/linux/pci.h:35,
>>>                   from
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:25:
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In
>>> function 'kfd_cpumask_to_apic_id':
>>> /kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error:
>>> called object is not a function or function pointer
>>>   #define cpu_data (&boot_cpu_data)
>>>                    ^
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9:
>>> note: in expansion of macro 'cpu_data'
>>>    return cpu_data(first_cpu_of_numa_node).apicid;
>>>           ^
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1:
>>> error: control reaches end of non-void function [-Werror=return-type]
>>>   }
>>>   ^
>> ah yes, UML.
>> I have a bunch of UML fixes that I have been hesitant to post.
>>
>> This is one of them.
>> What do people think about this?
> 
> Does it make sense to configure a UML kernel with a real device driver in the first place? Or should we just prevent enabling amdgpu for UML with a Kconfig dependency?
> 

Hi,

Your option IMO. I have seen both opinions given.
I also meant to reply that someone could just add
	depends on !UML
for this device, like you are suggesting.

I'm fine with it either way.

thanks.

> 
>>
>> thanks.
>>
>> ---
>> From: Randy Dunlap <rdunlap@infradead.org>
>>
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9: note: in expansion of macro ‘cpu_data’
>>    return cpu_data(first_cpu_of_numa_node).apicid;
>>           ^~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1: error: control reaches end of non-void function [-Werror=return-type]
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_fill_iolink_info_for_cpu’:
>> ../arch/um/include/asm/processor-generic.h:103:19: error: called object is not a function or function pointer
>>   #define cpu_data (&boot_cpu_data)
>>                    ~^~~~~~~~~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1688:27: note: in expansion of macro ‘cpu_data’
>>    struct cpuinfo_x86 *c = &cpu_data(0);
>>                             ^~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:7: error: dereferencing pointer to incomplete type ‘struct cpuinfo_x86’
>>    if (c->x86_vendor == X86_VENDOR_AMD)
>>         ^~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:23: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
>>    if (c->x86_vendor == X86_VENDOR_AMD)
>>                         ^~~~~~~~~~~~~~
>>                         X86_VENDOR_ANY
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_create_vcrat_image_cpu’:
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1742:11: warning: unused variable ‘entries’ [-Wunused-variable]
>>    uint32_t entries = 0;
>>
>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
>> ---
>>   drivers/gpu/drm/amd/amdkfd/kfd_crat.c     |    6 +++---
>>   drivers/gpu/drm/amd/amdkfd/kfd_topology.c |    2 +-
>>   2 files changed, 4 insertions(+), 4 deletions(-)
>>
>> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
>> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
>> @@ -1552,7 +1552,7 @@ static int kfd_cpumask_to_apic_id(const
>>       first_cpu_of_numa_node = cpumask_first(cpumask);
>>       if (first_cpu_of_numa_node >= nr_cpu_ids)
>>           return -1;
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>>       return cpu_data(first_cpu_of_numa_node).apicid;
>>   #else
>>       return first_cpu_of_numa_node;
>> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
>> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
>> @@ -1679,7 +1679,7 @@ static int kfd_fill_mem_info_for_cpu(int
>>       return 0;
>>   }
>>   -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>>   static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
>>                   uint32_t *num_entries,
>>                   struct crat_subtype_iolink *sub_type_hdr)
>> @@ -1738,7 +1738,7 @@ static int kfd_create_vcrat_image_cpu(vo
>>       struct crat_subtype_generic *sub_type_hdr;
>>       int avail_size = *size;
>>       int numa_node_id;
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>>       uint32_t entries = 0;
>>   #endif
>>       int ret = 0;
>> @@ -1803,7 +1803,7 @@ static int kfd_create_vcrat_image_cpu(vo
>>               sub_type_hdr->length);
>>             /* Fill in Subtype: IO Link */
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>>           ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size,
>>                   &entries,
>>                   (struct crat_subtype_iolink *)sub_type_hdr);
>>
>>

-- 
~Randy

RE: Build regressions/improvements in v5.17-rc1

[D, Lakshmi Sowjanya]

> -----Original Message-----
> From: Geert Uytterhoeven <geert@linux-m68k.org>
> Sent: Monday, January 24, 2022 1:26 PM
> To: linux-kernel@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org; sparclinux@vger.kernel.org; linux-
> um@lists.infradead.org; D, Lakshmi Sowjanya
> <lakshmi.sowjanya.d@intel.com>; kvm@vger.kernel.org; linux-
> mips@vger.kernel.org; Tobin C. Harding <me@tobin.cc>; alsa-devel@alsa-
> project.org; amd-gfx@lists.freedesktop.org; netdev@vger.kernel.org
> Subject: Re: Build regressions/improvements in v5.17-rc1
> 
> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
> > Below is the list of build error/warning regressions/improvements in
> > v5.17-rc1[1] compared to v5.16[2].
> >
> > Summarized:
> >  - build errors: +17/-2
> >  - build warnings: +23/-25
> >
> > 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/e783362eb54cd99b
> > 2cac8b3a9aeac942e6f6ac07/ (all 99 configs) [2]
> > http://kisskb.ellerman.id.au/kisskb/branch/linus/head/df0cc57e057f18e4
> > 4dac8e6c18aba47ab53202f9/ (98 out of 99 configs)
> >
> >
> > *** ERRORS ***
> >
> > 17 error regressions:
> >  + /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit
> > declaration of function 'nmi_cpu_backtrace'
> > [-Werror=implicit-function-declaration]:  => 171:2  +
> > /kisskb/src/arch/powerpc/kernel/stacktrace.c: error: implicit
> > declaration of function 'nmi_trigger_cpumask_backtrace'
> > [-Werror=implicit-function-declaration]:  => 226:2
> 
> powerpc-gcc5/skiroot_defconfig
> 
> >  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible
> > function types from 'void (*)(long unsigned int)' to 'void (*)(long
> > unsigned int,  long unsigned int,  long unsigned int,  long unsigned
> > int,  long unsigned int)' [-Werror=cast-function-type]:  => 1756:13,
> > 1639:13  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between
> > incompatible function types from 'void (*)(struct mm_struct *)' to
> > 'void (*)(long unsigned int,  long unsigned int,  long unsigned int,
> > long unsigned int,  long unsigned int)' [-Werror=cast-function-type]:
> > => 1674:29, 1662:29  + /kisskb/src/arch/sparc/mm/srmmu.c: error: cast
> > between incompatible function types from 'void (*)(struct mm_struct *,
> > long unsigned int)' to 'void (*)(long unsigned int,  long unsigned
> > int,  long unsigned int,  long unsigned int,  long unsigned int)'
> > [-Werror=cast-function-type]:  => 1767:21  +
> > /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible
> > function types from 'void (*)(struct vm_area_struct *, long unsigned
> > int)' to 'void (*)(long unsigned int,  long unsigned int,  long
> > unsigned int,  long unsigned int,  long unsigned int)'
> > [-Werror=cast-function-type]:  => 1741:29, 1726:29  +
> > /kisskb/src/arch/sparc/mm/srmmu.c: error: cast between incompatible
> > function types from 'void (*)(struct vm_area_struct *, long unsigned
> > int,  long unsigned int)' to 'void (*)(long unsigned int,  long
> > unsigned int,  long unsigned int,  long unsigned int,  long unsigned
> > int)' [-Werror=cast-function-type]:  => 1694:29, 1711:29
> 
> sparc64-gcc11/sparc-allmodconfig
> 
> >  + /kisskb/src/arch/um/include/asm/processor-generic.h: error: called
> > object is not a function or function pointer:  => 103:18  +
> > /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
> 
> um-x86_64/um-allyesconfig
> 
> >  + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:
> > error: control reaches end of non-void function [-Werror=return-type]:
> > => 1560:1
> 
> um-x86_64/um-all{mod,yes}config
> 
> >  + /kisskb/src/drivers/net/ethernet/freescale/fec_mpc52xx.c: error:
> > passing argument 2 of 'mpc52xx_fec_set_paddr' discards 'const'
> > qualifier from pointer target type [-Werror=discarded-qualifiers]:  =>
> > 659:29
> 
> powerpc-gcc5/ppc32_allmodconfig
> 
> >  + /kisskb/src/drivers/pinctrl/pinctrl-thunderbay.c: error: assignment
> > discards 'const' qualifier from pointer target type
> > [-Werror=discarded-qualifiers]:  => 815:8, 815:29
> 
> arm64-gcc5.4/arm64-allmodconfig
> arm64-gcc8/arm64-allmodconfig
> 

These errors are fixed with the patch set by Rafał Miłecki: 
https://lore.kernel.org/all/CACRpkdYbR-hpLTcvN1_LuxEH_mgHLqDmopDqo1ddui9o8ZvSPQ@mail.gmail.com/t/

Regards,
Lakshmi Sowjanya

> >  + /kisskb/src/lib/test_printf.c: error: "PTR" redefined [-Werror]:
> > => 247:0, 247  + /kisskb/src/sound/pci/ca0106/ca0106.h: error: "PTR"
> > redefined [-Werror]:  => 62, 62:0
> 
> mips-gcc8/mips-allmodconfig
> mipsel/mips-allmodconfig
> 
> >  + 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)
> 
> powerpc-gcc5/powerpc-allyesconfig
> 
> Gr{oetje,eeting}s,
> 
>  						Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-
> 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

Re: Build regressions/improvements in v5.17-rc1

[Thomas Bogendoerfer]

On Mon, Jan 24, 2022 at 08:55:40AM +0100, Geert Uytterhoeven wrote:
> >  + /kisskb/src/lib/test_printf.c: error: "PTR" redefined [-Werror]:  => 247:0, 247
> >  + /kisskb/src/sound/pci/ca0106/ca0106.h: error: "PTR" redefined [-Werror]:  => 62, 62:0
> 
> mips-gcc8/mips-allmodconfig
> mipsel/mips-allmodconfig

fixing patch sent.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

Re: Build regressions/improvements in v5.17-rc1

[Alex Williamson]

On Sun, 23 Jan 2022 13:57:37 +0100
Geert Uytterhoeven <geert@linux-m68k.org> wrote:

> Below is the list of build error/warning regressions/improvements in
> v5.17-rc1[1] compared to v5.16[2].
> 
> Summarized:
>   - build errors: +17/-2
>   - build warnings: +23/-25
> 
> 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/e783362eb54cd99b2cac8b3a9aeac942e6f6ac07/ (all 99 configs)
> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/df0cc57e057f18e44dac8e6c18aba47ab53202f9/ (98 out of 99 configs)
> 
> 
> *** ERRORS ***
> 
> 17 error regressions:
...
>   + /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

Patch posted:

https://lore.kernel.org/all/164306582968.3758255.15192949639574660648.stgit@omen/

Sorry I forgot to list Geert in Reported-by, I've done that in the
local copy that I'll use for a pull request.  Thanks,

Alex