Hi,
On Fri, 20 Sep 2024, Michael Vetter wrote:
> Save the state of /sys/kernel/livepatch/debug/kprobes/enabled
I believe it is /sys/kernel/debug/kprobes/enabled.
> during setup_config() and restore it during cleanup().
>
> This is in preparation for a future commit that will add a test
> that should confirm that we cannot livepatch a kprobed function
> if that kprobe has a post handler.
>
> Signed-off-by: Michael Vetter <mvetter@xxxxxxxx>
> ---
> tools/testing/selftests/livepatch/functions.sh | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh
> index 50361fceff06..6684c01c0567 100644
> --- a/tools/testing/selftests/livepatch/functions.sh
> +++ b/tools/testing/selftests/livepatch/functions.sh
> @@ -6,7 +6,10 @@
>
> MAX_RETRIES=600
> RETRY_INTERVAL=".1" # seconds
> -SYSFS_KLP_DIR="/sys/kernel/livepatch"
> +SYSFS_KERNEL_DIR="/sys/kernel"
> +SYSFS_KLP_DIR="$SYSFS_KERNEL_DIR/livepatch"
> +SYSFS_DEBUG_DIR="$SYSFS_KERNEL_DIR/debug"
> +SYSFS_KPROBES_DIR="$SYSFS_DEBUG_DIR/kprobes"
Personally I find this harder to read but it is a nit and Petr asked you
to do it, but
> # Kselftest framework requirement - SKIP code is 4
> ksft_skip=4
> @@ -58,6 +61,7 @@ function push_config() {
> DYNAMIC_DEBUG=$(grep '^kernel/livepatch' /sys/kernel/debug/dynamic_debug/control | \
it stays opencoded here and also elsewhere which is not great. Could it be
consistent, please?
Otherwise I would just squash the patch to the next one.
Thank you,
Miroslav
