Re: [PATCH 0/5] Rework KUnit test execution in modules

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Le 18/06/2022 à 11:03, David Gow a écrit :
> [Vous ne recevez pas souvent de courriers de davidgow@xxxxxxxxxx. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
> 
> This patch series makes two changes to how KUnit test suites are stored
> and executed:
> - The .kunit_test_suites section is now used for tests in modules (in
>    lieu of a module_init funciton), as well as for built-in tests. The
>    module loader will now trigger test execution. This frees up the
>    module_init function for other uses.
> - Instead of storing an array of arrays of suites, have the
>    kunit_test_suite() and kunit_test_suites() macros append to one global
>    (or per-module) list of test suites. This removes a needless layer of
>    indirection.
> 
> The upshot of this is that it should now be possible to use the
> kunit_test_suite() and kunit_test_suites() macros to register test
> suites even from within modules which otherwise had module_init
> functions. This was proving to be quite a common issue, resulting in
> several modules calling into KUnit's private suite execution functions
> to run their tests (often introducing incompatibilities with the KUnit
> tooling).
> 
> This series also fixes the thunderbolt, nitro_enclaves, and
> sdhci-of-aspeed tests to use kunit_test_suite() now that it works.
> 
> Huge thanks to Jeremy Kerr, who designed and implemented the module
> loader changes, and to Daniel Latypov for pushing the simplification of
> the nested arrays in .kunit_test_suites.
> 
> I've tested this series both with builtin tests, and with modules on
> x86_64, but there's always the possibility that there's something subtle
> and nasty on another architecture, so please test!

Build failure on powerpc architecture with ppc64_defconfig + 
CONFIG_KUNIT_TEST=m

   CC [M]  lib/kunit/test.o
lib/kunit/test.c: In function 'kunit_module_init':
lib/kunit/test.c:616:37: error: 'struct module' has no member named 
'kunit_suites'
   616 |         __kunit_test_suites_init(mod->kunit_suites, 
mod->num_kunit_suites);
       |                                     ^~
lib/kunit/test.c:616:56: error: 'struct module' has no member named 
'num_kunit_suites'
   616 |         __kunit_test_suites_init(mod->kunit_suites, 
mod->num_kunit_suites);
       |                                                        ^~
lib/kunit/test.c: In function 'kunit_module_exit':
lib/kunit/test.c:621:37: error: 'struct module' has no member named 
'kunit_suites'
   621 |         __kunit_test_suites_exit(mod->kunit_suites, 
mod->num_kunit_suites);
       |                                     ^~
lib/kunit/test.c:621:56: error: 'struct module' has no member named 
'num_kunit_suites'
   621 |         __kunit_test_suites_exit(mod->kunit_suites, 
mod->num_kunit_suites);
       |                                                        ^~


Christophe




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