linux-kernel - [RFC PATCH] kunit: Fix test log size limit too low for some tests

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Message-ID: <20230830075419.26484-2-janusz.krzysztofik@linux.intel.com>
Date:   Wed, 30 Aug 2023 09:54:20 +0200
From:   Janusz Krzysztofik <janusz.krzysztofik@...ux.intel.com>
To:     Brendan Higgins <brendan.higgins@...ux.dev>,
        David Gow <davidgow@...gle.com>
Cc:     linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        drm-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        intel-xe@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH] kunit: Fix test log size limit too low for some tests

Now we have memory space available to a kunit test case log exposed via
debugfs limited to 2048 bytes, while some parametrized test cases, e.g.,
drm_framebuffer.drm_test_framebuffer_create, need more.  For this reason,
debugfs results from affected test cases get truncated silently, and
external tools that rely on parsing of debugfs results can fail.

Increase kunit test case log size limit to 4096 bytes.

Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@...ux.intel.com>
---
 include/kunit/test.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/kunit/test.h b/include/kunit/test.h
index d33114097d0d0..d20eb1884edfa 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -34,7 +34,7 @@ DECLARE_STATIC_KEY_FALSE(kunit_running);
 struct kunit;
 
 /* Size of log associated with test. */
-#define KUNIT_LOG_SIZE 2048
+#define KUNIT_LOG_SIZE 4096
 
 /* Maximum size of parameter description string. */
 #define KUNIT_PARAM_DESC_SIZE 128
-- 
2.41.0