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* [Build Error Report] Implicit Function declaration for bpf-next tree
@ 2025-06-12  2:52 Tiezhu Yang
  2025-06-12  5:41 ` Alexei Starovoitov
  0 siblings, 1 reply; 2+ messages in thread
From: Tiezhu Yang @ 2025-06-12  2:52 UTC (permalink / raw)
  To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko; +Cc: bpf

There exists the following build error for bpf-next tree on LoongArch:

   CC      drivers/acpi/numa/srat.o
drivers/acpi/numa/srat.c: In function ‘acpi_parse_cfmws’:
drivers/acpi/numa/srat.c:467:13: error: implicit declaration of function 
‘numa_add_reserved_memblk’ [-Wimplicit-function-declaration]
   467 |         if (numa_add_reserved_memblk(node, start, end) < 0) {
       |             ^~~~~~~~~~~~~~~~~~~~~~~~
make[5]: *** [scripts/Makefile.build:203: drivers/acpi/numa/srat.o] Error 1
make[4]: *** [scripts/Makefile.build:470: drivers/acpi/numa] Error 2
make[3]: *** [scripts/Makefile.build:470: drivers/acpi] Error 2
make[2]: *** [scripts/Makefile.build:470: drivers] Error 2

This is because the following two commits are not in bpf-next tree:

   commit 9559d5806319 ("LoongArch: Increase max supported CPUs up to 2048")
   commit a24f2fb70cb6 ("LoongArch: Introduce the numa_memblks conversion")

Is it possible to update bpf-next tree based on 6.16-rc1 or at least
apply the above two commits to avoid the build error?

Thanks,
Tiezhu


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [Build Error Report] Implicit Function declaration for bpf-next tree
  2025-06-12  2:52 [Build Error Report] Implicit Function declaration for bpf-next tree Tiezhu Yang
@ 2025-06-12  5:41 ` Alexei Starovoitov
  0 siblings, 0 replies; 2+ messages in thread
From: Alexei Starovoitov @ 2025-06-12  5:41 UTC (permalink / raw)
  To: Tiezhu Yang; +Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, bpf

On Wed, Jun 11, 2025 at 7:52 PM Tiezhu Yang <yangtiezhu@loongson.cn> wrote:
>
> There exists the following build error for bpf-next tree on LoongArch:
>
>    CC      drivers/acpi/numa/srat.o
> drivers/acpi/numa/srat.c: In function ‘acpi_parse_cfmws’:
> drivers/acpi/numa/srat.c:467:13: error: implicit declaration of function
> ‘numa_add_reserved_memblk’ [-Wimplicit-function-declaration]
>    467 |         if (numa_add_reserved_memblk(node, start, end) < 0) {
>        |             ^~~~~~~~~~~~~~~~~~~~~~~~
> make[5]: *** [scripts/Makefile.build:203: drivers/acpi/numa/srat.o] Error 1
> make[4]: *** [scripts/Makefile.build:470: drivers/acpi/numa] Error 2
> make[3]: *** [scripts/Makefile.build:470: drivers/acpi] Error 2
> make[2]: *** [scripts/Makefile.build:470: drivers] Error 2
>
> This is because the following two commits are not in bpf-next tree:
>
>    commit 9559d5806319 ("LoongArch: Increase max supported CPUs up to 2048")
>    commit a24f2fb70cb6 ("LoongArch: Introduce the numa_memblks conversion")
>
> Is it possible to update bpf-next tree based on 6.16-rc1 or at least
> apply the above two commits to avoid the build error?

perf_event-s are broken in Linus's tree. There is a fix in tip.git.
We're waiting for the fix to land through.
Then we will merge perf_event fix and all other fixes into bpf and bpf-next.
Hopefully in a day or two.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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