diff options
| author | Koichiro Den <koichiro.den@canonical.com> | 2025-04-13 00:01:19 +0900 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2025-04-14 22:30:01 +0200 |
| commit | 290ffcfe3042dcd5b701a98edd48d7962d35556b (patch) | |
| tree | 9258b1606a7d80fadb8bd2929566bf5092023d73 | |
| parent | d945ff52642d98eb6fa191f88a9cfde729129395 (diff) | |
selftests: gpio: gpio-aggregator: add a test case for _sysfs prefix reservation
The kernel doc for gpio-aggregator configfs interface, which was recently
added, states that users should not be able to create an aggregator with a
name prefixed by "_sysfs" via configfs. However, it was found that this
guard does not function as expected (thanks to Dan Carpenter for
identifying and fixing the issue).
Add a test case to verify the guard.
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Link: https://lore.kernel.org/r/20250412150119.1461023-1-koichiro.den@canonical.com
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
| -rwxr-xr-x | tools/testing/selftests/gpio/gpio-aggregator.sh | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/gpio/gpio-aggregator.sh b/tools/testing/selftests/gpio/gpio-aggregator.sh index f1bab62c4cd2..9b6f80ad9f8a 100755 --- a/tools/testing/selftests/gpio/gpio-aggregator.sh +++ b/tools/testing/selftests/gpio/gpio-aggregator.sh @@ -335,6 +335,10 @@ test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || \ agg_remove_line agg0 line0 agg_remove_chip agg0 +echo "1.1.6. Can't instantiate a chip with _sysfs prefix" +mkdir "$CONFIGFS_AGG_DIR/_sysfs" 2> /dev/null && fail "chip _sysfs unexpectedly created" +mkdir "$CONFIGFS_AGG_DIR/_sysfs.foo" 2> /dev/null && fail "chip _sysfs.foo unexpectedly created" + echo "1.2. Creation/deletion via sysfs" echo "1.2.1. Minimum creation/deletion" |