Re: [PATCH] selftests: lsm: Refactor `flags_overset_lsm_set_self_attr` test

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On 11/14/2024 8:25 AM, Shuah Khan wrote:
> On 11/12/24 11:28, Amit Vadhavana wrote:
>> - Remove unnecessary `tctx` variable, use `ctx` directly.
>> - Simplified code with no functional changes.
>>
>
> I would rephrase the short to simply say Remove unused variable,
> as refactor implies more extensive changes than what this patch
> is actually doing.
>
> Please write complete sentences instead of bullet points in the
> change log.
>
> How did you find this problem? Do include the details on how
> in the change log.
>
>> Signed-off-by: Amit Vadhavana <av2082000@xxxxxxxxx>
>> ---
>>   tools/testing/selftests/lsm/lsm_set_self_attr_test.c | 7 +++----
>>   1 file changed, 3 insertions(+), 4 deletions(-)
>>
>> diff --git a/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
>> b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
>> index 66dec47e3ca3..732e89fe99c0 100644
>> --- a/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
>> +++ b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
>> @@ -56,16 +56,15 @@ TEST(flags_zero_lsm_set_self_attr)
>>   TEST(flags_overset_lsm_set_self_attr)
>>   {
>>       const long page_size = sysconf(_SC_PAGESIZE);
>> -    char *ctx = calloc(page_size, 1);
>> +    struct lsm_ctx *ctx = calloc(page_size, 1);
>
> Why not name this tctx and avoid changes to the ASSERT_EQs
> below?

In the realm of linux security modules ctx is short for "context".
I used tctx here because I was lazy. It would be much better to
drop tctx, even if it means a tiny bit more change.

>
>>       __u32 size = page_size;
>> -    struct lsm_ctx *tctx = (struct lsm_ctx *)ctx;
>>         ASSERT_NE(NULL, ctx);
>>       if (attr_lsm_count()) {
>> -        ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, tctx, &size,
>> +        ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
>>                              0));
>>       }
>> -    ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT |
>> LSM_ATTR_PREV, tctx,
>> +    ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT |
>> LSM_ATTR_PREV, ctx,
>>                       size, 0));
>>         free(ctx);
>
> You have to change this tctx for sure.
>
> With these changes:
>
> Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
>
> Paul, James,
>
> Please do let me know if you would me to take this through
> kselftest tree.
>
> thanks,
> -- Shuah
>
>




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