bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

[Hardik Garg]

bpf tool build fails for the latest stable-rc 6.1.103-rc3
The error details are as follows:
prog.c: In function 'load_with_options':
prog.c:1710:23: warning: implicit declaration of function 'create_and_mount_bpffs_dir' [-Wimplicit-function-declaration]
 1710 |                 err = create_and_mount_bpffs_dir(pinmaps);
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~
  CC      struct_ops.o
  CC      tracelog.o
  CC      xlated_dumper.o
  CC      jit_disasm.o
  CC      disasm.o
  LINK    bpftool
/usr/bin/ld: prog.o: in function `load_with_options':
prog.c:(.text+0x346a): undefined reference to `create_and_mount_bpffs_dir'

The commit causing this failure in 6.1.103-rc3: bc1605fcb33bf7a300cd3ac5c409a16bda1626ba

It appears that the commit from the 6.10 series is missing in this release candidate:
478a535ae54a ("bpftool: Mount bpffs on provided dir instead of parent dir")



Thanks,
Hardik

Re: bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

[Akemi Yagi]

On Thu, 01 Aug 2024 21:05:45 -0700, Hardik Garg wrote:

> bpf tool build fails for the latest stable-rc 6.1.103-rc3 The error
> details are as follows:
> prog.c: In function 'load_with_options':
> prog.c:1710:23: warning: implicit declaration of function
> 'create_and_mount_bpffs_dir' [-Wimplicit-function-declaration]
>  1710 |                 err = create_and_mount_bpffs_dir(pinmaps);
>       |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~

> The commit causing this failure in 6.1.103-rc3:
> bc1605fcb33bf7a300cd3ac5c409a16bda1626ba
> 
> It appears that the commit from the 6.10 series is missing in this
> release candidate:
> 478a535ae54a ("bpftool: Mount bpffs on provided dir instead of parent
> dir") 
> 
> Thanks,
> Hardik

Build of final 6.1.103 fails due to the reported issue.

Can we drop this commit until we figure out a proper fix?

Thanks,
Akemi

Re: bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

[Hardik Garg]

adding the BPF maintainers




Thanks,
Hardik

Re: bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

[Greg KH]

On Thu, Aug 08, 2024 at 11:20:33AM -0700, Hardik Garg wrote:
> adding the BPF maintainers

There was no data here at all for anyone to respond to :(

Re: bpf tool build failure in latest stable-rc 6.1.103-rc3 due to missing backport

[Greg KH]

On Thu, Aug 01, 2024 at 09:05:45PM -0700, Hardik Garg wrote:
> bpf tool build fails for the latest stable-rc 6.1.103-rc3
> The error details are as follows:
> prog.c: In function 'load_with_options':
> prog.c:1710:23: warning: implicit declaration of function 'create_and_mount_bpffs_dir' [-Wimplicit-function-declaration]
>  1710 |                 err = create_and_mount_bpffs_dir(pinmaps);
>       |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~
>   CC      struct_ops.o
>   CC      tracelog.o
>   CC      xlated_dumper.o
>   CC      jit_disasm.o
>   CC      disasm.o
>   LINK    bpftool
> /usr/bin/ld: prog.o: in function `load_with_options':
> prog.c:(.text+0x346a): undefined reference to `create_and_mount_bpffs_dir'
> 
> The commit causing this failure in 6.1.103-rc3: bc1605fcb33bf7a300cd3ac5c409a16bda1626ba
> 
> It appears that the commit from the 6.10 series is missing in this release candidate:
> 478a535ae54a ("bpftool: Mount bpffs on provided dir instead of parent dir")

That commit does not apply to 6.1.y, sorry.

greg k-h