[PATCH v3] selftests/livepatch: introduce tests

[mbenes at suse.cz (Miroslav Benes)]

Hi,

On Thu, 12 Apr 2018, Joe Lawrence wrote:

> Add a few livepatch modules and simple target modules that the included
> regression suite can run tests against.

Could you include a brief description which features are tested?
 
> Signed-off-by: Joe Lawrence <joe.lawrence at redhat.com>
> ---

> diff --git a/lib/livepatch/test_klp_shadow_vars.c b/lib/livepatch/test_klp_shadow_vars.c
> new file mode 100644
> index 000000000000..18c75b21cb9e
> --- /dev/null
> +++ b/lib/livepatch/test_klp_shadow_vars.c
>
> +/*
> + * Shadow variable wrapper functions that echo the function and arguments
> + * to the kernel log for testing verification.  Don't display raw pointers,
> + * but use the ptr_id() value instead.
> + */
> +void *shadow_get(void *obj, unsigned long id)
> +{
> +	void *ret = klp_shadow_get(obj, id);
> +
> +	pr_info("klp_%s(obj=PTR%d, id=0x%lx) = PTR%d\n",
> +		__func__, ptr_id(obj), id, ptr_id(ret));
> +
> +	return ret;
> +}

> +void shadow_free(void *obj, unsigned long id, klp_shadow_dtor_t dtor)
> +{
> +	klp_shadow_free(obj, id, dtor);
> +	pr_info("klp_%s(obj=PTR%d, id=0x%lx, dtor=PTR%d)\n",
> +		__func__, ptr_id(obj), id, ptr_id(dtor));
> +}

Sparse (make C=1) would be happier with those two being static.

Otherwise it works as expected. Good job!

Miroslav
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