Re: Build regressions/improvements in v5.14-rc5

[Geert Uytterhoeven]

Hi Randy,

On Mon, Aug 9, 2021 at 6:20 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
> On 8/9/21 12:50 AM, Geert Uytterhoeven wrote:
> > *** ERRORS ***
> >
> > 13 error regressions:
> >    + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of function 'boot_cpu_has' [-Werror=implicit-function-declaration]:  => 74:6
> >    + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of function 'cpuid_eax' [-Werror=implicit-function-declaration]:  => 64:18
> >    + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of function 'cpuid_ebx' [-Werror=implicit-function-declaration]:  => 17:31
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: 'X86_MSI_BASE_ADDRESS_HIGH' undeclared (first use in this function):  => 150:20
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: 'X86_MSI_BASE_ADDRESS_LOW' undeclared (first use in this function):  => 151:35
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'base_address':  => 151:19
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: 'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no member named 'destid_0_7':  => 152:19
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: control reaches end of non-void function [-Werror=return-type]:  => 127:1
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: dereferencing pointer to incomplete type 'struct pci_sysdata':  => 700:4
> >    + /kisskb/src/drivers/pci/controller/vmd.c: error: field 'sysdata' has incomplete type:  => 116:21
> >    + /kisskb/src/include/linux/compiler_attributes.h: error: "__GCC4_has_attribute___no_sanitize_coverage__" is not defined [-Werror=undef]:  => 29:29
> >    + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_1857' declared with attribute error: FIELD_PREP: value too large for the field:  => 328:38
> >    + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_1864' declared with attribute error: FIELD_PREP: value too large for the field:  => 328:38
>
> Hi Geert,
> Would you tell me what arch & config these build errors are from?

These were all new in v5.14-rc1, cfr.
https://lore.kernel.org/lkml/CAMuHMdWv8-6fBDLb8cFvvLxsb7RkEVkLNUBeCm-9yN9_iJkg-g@xxxxxxxxxxxxxx/

  + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of
function 'boot_cpu_has' [-Werror=implicit-function-declaration]:  =>
74:6
  + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of
function 'cpuid_eax' [-Werror=implicit-function-declaration]:  =>
64:18
  + /kisskb/src/drivers/dma/ioat/dca.c: error: implicit declaration of
function 'cpuid_ebx' [-Werror=implicit-function-declaration]:  =>
17:31
  + /kisskb/src/drivers/pci/controller/vmd.c: error:
'X86_MSI_BASE_ADDRESS_HIGH' undeclared (first use in this function):
=> 150:20
  + /kisskb/src/drivers/pci/controller/vmd.c: error:
'X86_MSI_BASE_ADDRESS_LOW' undeclared (first use in this function):
=> 151:35
  + /kisskb/src/drivers/pci/controller/vmd.c: error:
'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no
member named 'base_address':  => 151:19
  + /kisskb/src/drivers/pci/controller/vmd.c: error:
'arch_msi_msg_addr_lo_t {aka struct arch_msi_msg_addr_lo}' has no
member named 'destid_0_7':  => 152:19
  + /kisskb/src/drivers/pci/controller/vmd.c: error: control reaches
end of non-void function [-Werror=return-type]:  => 127:1
  + /kisskb/src/drivers/pci/controller/vmd.c: error: dereferencing
pointer to incomplete type 'struct pci_sysdata':  => 700:4
  + /kisskb/src/drivers/pci/controller/vmd.c: error: field 'sysdata'
has incomplete type:  => 116:21

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

  + /kisskb/src/include/linux/compiler_attributes.h: error:
"__GCC4_has_attribute___no_sanitize_coverage__" is not defined
[-Werror=undef]:  => 29:29

mips-gcc4.9/mips-allmodconfig

  + /kisskb/src/include/linux/compiler_types.h: error: call to
'__compiletime_assert_1857' declared with attribute error: FIELD_PREP:
value too large for the field:  => 328:38
  + /kisskb/src/include/linux/compiler_types.h: error: call to
'__compiletime_assert_1864' declared with attribute error: FIELD_PREP:
value too large for the field:  => 328:38

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

Gr{oetje,eeting}s,

                        Geert

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

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