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SubjectRe: Build regressions/improvements in v6.1-rc7
On Mon, 28 Nov 2022, Geert Uytterhoeven wrote:
> JFYI, when comparing v6.1-rc7[1] to v6.1-rc6[3], the summaries are:
> - build errors: +6/-0

+ /kisskb/src/arch/um/include/asm/processor-generic.h: error: called object is not a function or function pointer: 94:18 => 94:19, 94:18

um-x86_64-gcc12/um-all{mod,yes}config (in kfd_cpumask_to_apic_id(), seen
before with um-x86_64/um-all{mod,yes}config)

+ /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

um-x86_64/um-all{mod,yes}config (seen before on v6.1-rc4)

+ /kisskb/src/drivers/net/ethernet/marvell/prestera/prestera_flower.c: error: 'rule' is used uninitialized [-Werror=uninitialized]: => 480:34
+ /kisskb/src/drivers/spi/spi-stm32-qspi.c: error: 'op' is used uninitialized [-Werror=uninitialized]: => 523:27, 564:27

um-x86_64-gcc12/um-all{mod,yes}config

The latter looks completely bogus to me, unless there's a bug in the UML
implementation of memcpy() and memset(), which are used to initialize
"op".

> [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/b7b275e60bcd5f89771e865a8239325f86d9927d/ (all 152 configs)
> [3] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/eb7081409f94a9a8608593d0fb63a1aa3d6f95d8/ (149 out of 152 configs)

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

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