From mboxrd@z Thu Jan 1 00:00:00 1970 From: joe.lawrence@redhat.com (Joe Lawrence) Date: Fri, 13 Apr 2018 16:52:25 -0400 Subject: [PATCH v3] selftests/livepatch: introduce tests In-Reply-To: References: <1523544871-29444-1-git-send-email-joe.lawrence@redhat.com> <1523544871-29444-2-git-send-email-joe.lawrence@redhat.com> Message-ID: Content-Type: text/plain; charset="UTF-8" Message-ID: <20180413205225.FvWzz_Wg7869FT-8q35BCBK2nAO6JVr3H2vZXI70R_o@z> On 04/13/2018 07:20 AM, Miroslav Benes wrote: > 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? I can add this to the commit msg: - basic livepatching (multiple patches, atomic replace) - pre/post (un)patch callbacks - shadow variable API Or do you prefer a little more detail? > >> Signed-off-by: Joe Lawrence >> --- > >> 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. Ah right. I wonder why the kbuild test robot didn't complain about those, too. Easy enough to fix up, thanks. > Otherwise it works as expected. Good job! Thanks for reviewing. I'll hold off on posting v4 until Petr (and others) get a chance to comment. Perhaps there are other tests that would be helpful? -- Joe -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html