Re: [morimoto:sound-cleanup-2025-01-16-2 7/23] sound/soc/generic/audio-graph-card2.c:1013:4: error: cannot jump from this goto statement to its label

[Nathan Chancellor <nathan@kernel.org>]

Hi Kuninori,

Not a part of the kernel test robot team but I help maintain the clang
build support so I hope I can help.

On Wed, Jan 22, 2025 at 01:19:31AM +0000, Kuninori Morimoto wrote:
> > tree:   https://github.com/morimoto/linux sound-cleanup-2025-01-16-2
> > head:   e3977d58d39b9fd3d4f04615aa580d4fa702aa0e
> > commit: 08af04b193d94a1cbda7863d699552bd674dacd2 [7/23] ASoC: audio-graph-card2: use snd_soc_ret()
> > config: i386-randconfig-013-20250117 (https://download.01.org/0day-ci/archive/20250117/202501171455.ZDrGYjE5-lkp@intel.com/config)
> > compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250117/202501171455.ZDrGYjE5-lkp@intel.com/reproduce)
> (snip)
> > >> sound/soc/generic/audio-graph-card2.c:1013:4: error: cannot jump from this goto statement to its label
> >     1013 |                         goto end;
> >          |                         ^
> >    sound/soc/generic/audio-graph-card2.c:1030:22: note: jump bypasses initialization of variable with __attribute__((cleanup))
> >     1030 |         struct device_node *codec1_port __free(device_node) = of_graph_get_remote_port(ep1);
> >          |                             ^
> 
> I couldn't reproduce this issue on clang v18.1.3 (Ubuntu 24.04.1 LTS).
> Is it clang new feature (19.1.3) ?

Odd, this check has been around in clang for some time, I can reproduce
it with clang-14 using the configuration that the test robot used.

  $ clang --version | head -1
  ClangBuiltLinux clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)

  $ git switch -d 08af04b193d94a1cbda7863d699552bd674dacd2
  HEAD is now at 08af04b193d9 ASoC: audio-graph-card2: use snd_soc_ret()

  $ curl -LSso .config https://download.01.org/0day-ci/archive/20250117/202501171455.ZDrGYjE5-lkp@intel.com/config

  $ make -skj"$(nproc)" ARCH=i386 LLVM=1 olddefconfig sound/soc/generic/audio-graph-card2.o
  sound/soc/generic/audio-graph-card2.c:1013:4: error: cannot jump from this goto statement to its label
                          goto end;
                          ^
  sound/soc/generic/audio-graph-card2.c:1030:22: note: jump bypasses initialization of variable with __attribute__((cleanup))
          struct device_node *codec1_port __free(device_node) = of_graph_get_remote_port(ep1);
                              ^
  ...

Not sure if it is something specific with this configuration that
triggers it but it should be reproducible using those steps.

Cheers,
Nathan