vfio: selftests: Fix .gitignore for already tracked files

Fix the rules in tools/testing/selftests/vfio/.gitignore to not ignore
some already tracked files (.gitignore, Makefile, lib/libvfio.mk).

This change should be a no-op, since these files are already tracked by git
and thus git will not ignore updates to them even though they match the
ignore rules in the VFIO selftests .gitignore file.

However, they do generate warnings with W=1, as reported by the kernel test
robot.

  $ KBUILD_EXTRA_WARN=1 scripts/misc-check
  tools/testing/selftests/vfio/.gitignore: warning: ignored by one of the .gitignore files
  tools/testing/selftests/vfio/Makefile: warning: ignored by one of the .gitignore files
  tools/testing/selftests/vfio/lib/libvfio.mk: warning: ignored by one of the .gitignore files

Fix this by explicitly un-ignoring the tracked files.

Fixes: 292e9ee22b0a ("selftests: Create tools/testing/selftests/vfio")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508280918.rFRyiLEU-lkp@intel.com/
Signed-off-by: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20250828185815.382215-1-dmatlack@google.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/tools/testing/selftests/vfio/.gitignore b/tools/testing/selftests/vfio/.gitignore
index 6d9381d60172f39e9557f76179e420e69209d358..7fadc19d3bca4c7f1551a8c4a33b25ee1a7611d1 100644 (file)
--- a/tools/testing/selftests/vfio/.gitignore
+++ b/tools/testing/selftests/vfio/.gitignore
@@ -5,3 +5,6 @@
 !*.h
 !*.S
 !*.sh
+!*.mk
+!.gitignore
+!Makefile