The rvgen kunit command generates .bak backup files and these can be
checked in for selftests (make check). Clean targets like make disclean
remove such files, leaving the tree dirty.

Switch to .old to preserve a clean tree after make disclean.

Reported-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Closes: https://lore.kernel.org/lkml/aosuwKH5GOEo0xTN@google.com
Fixes: 7b6246294eb0 ("verification/rvgen: Add selftests for rvgen kunit")
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
 tools/verification/rvgen/rvgen/kunit.py                         | 2 +-
 .../{test_bak_kunit_kunit.c.bak => test_bak_kunit_kunit.c.old}  | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename tools/verification/rvgen/tests/golden/test_bak_kunit/{test_bak_kunit_kunit.c.bak => test_bak_kunit_kunit.c.old} (100%)

diff --git a/tools/verification/rvgen/rvgen/kunit.py b/tools/verification/rvgen/rvgen/kunit.py
index ed2082d7d3bc..85973f918c9b 100644
--- a/tools/verification/rvgen/rvgen/kunit.py
+++ b/tools/verification/rvgen/rvgen/kunit.py
@@ -173,7 +173,7 @@ EXPORT_SYMBOL_IF_KUNIT({struct_name});
             for path in (header_file_path, kunit_c_file_path):
                 if path.exists():
                     try:
-                        path.rename(path.with_suffix(path.suffix + ".bak"))
+                        path.rename(path.with_suffix(path.suffix + ".old"))
                     except OSError as e:
                         raise KUnitError(f"Error backing up file {path}: {e}") from e
 
diff --git a/tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.bak b/tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.old
similarity index 100%
rename from tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.bak
rename to tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.old

base-commit: 0a0d1d55dad570724bf8c7ea83409639cfb4be9b
-- 
2.55.0

Gabriele Monaco <gmonaco@redhat.com> writes:
> The rvgen kunit command generates .bak backup files and these can be
> checked in for selftests (make check). Clean targets like make disclean
> remove such files, leaving the tree dirty.
>
> Switch to .old to preserve a clean tree after make disclean.
>
> Reported-by: Kuan-Wei Chiu <visitorckw@gmail.com>
> Closes: https://lore.kernel.org/lkml/aosuwKH5GOEo0xTN@google.com
> Fixes: 7b6246294eb0 ("verification/rvgen: Add selftests for rvgen kunit")
> Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>

Reviewed-by: Nam Cao <namcao@linutronix.de>

We should send it to v7.3 as soon as possible, to avoid further complains.

Nam

On Mon, Aug 24, 2026 at 10:15:19AM +0200, Gabriele Monaco wrote:
> The rvgen kunit command generates .bak backup files and these can be
> checked in for selftests (make check). Clean targets like make disclean
> remove such files, leaving the tree dirty.
> 
> Switch to .old to preserve a clean tree after make disclean.
> 
> Reported-by: Kuan-Wei Chiu <visitorckw@gmail.com>
> Closes: https://lore.kernel.org/lkml/aosuwKH5GOEo0xTN@google.com
> Fixes: 7b6246294eb0 ("verification/rvgen: Add selftests for rvgen kunit")
> Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>

Thanks for the quick fix!
The working tree now remains clean after running make distclean.

Tested-by: Kuan-Wei Chiu <visitorckw@gmail.com>

Regards,
Kuan-Wei

> ---
>  tools/verification/rvgen/rvgen/kunit.py                         | 2 +-
>  .../{test_bak_kunit_kunit.c.bak => test_bak_kunit_kunit.c.old}  | 0
>  2 files changed, 1 insertion(+), 1 deletion(-)
>  rename tools/verification/rvgen/tests/golden/test_bak_kunit/{test_bak_kunit_kunit.c.bak => test_bak_kunit_kunit.c.old} (100%)
> 
> diff --git a/tools/verification/rvgen/rvgen/kunit.py b/tools/verification/rvgen/rvgen/kunit.py
> index ed2082d7d3bc..85973f918c9b 100644
> --- a/tools/verification/rvgen/rvgen/kunit.py
> +++ b/tools/verification/rvgen/rvgen/kunit.py
> @@ -173,7 +173,7 @@ EXPORT_SYMBOL_IF_KUNIT({struct_name});
>              for path in (header_file_path, kunit_c_file_path):
>                  if path.exists():
>                      try:
> -                        path.rename(path.with_suffix(path.suffix + ".bak"))
> +                        path.rename(path.with_suffix(path.suffix + ".old"))
>                      except OSError as e:
>                          raise KUnitError(f"Error backing up file {path}: {e}") from e
>  
> diff --git a/tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.bak b/tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.old
> similarity index 100%
> rename from tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.bak
> rename to tools/verification/rvgen/tests/golden/test_bak_kunit/test_bak_kunit_kunit.c.old
> 
> base-commit: 0a0d1d55dad570724bf8c7ea83409639cfb4be9b
> -- 
> 2.55.0
>