Subject: linux-next: build failure after merge of the kunit-next tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 29 Feb 2024 15:26:53 +1100

Hi all,

After merging the kunit-next tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from drivers/gpu/drm/tests/drm_buddy_test.c:7:
drivers/gpu/drm/tests/drm_buddy_test.c: In function 'drm_test_buddy_alloc_range_bias':
drivers/gpu/drm/tests/drm_buddy_test.c:191:40: error: format '%u' expects a matching 'unsigned int' argument [-Werror=format=]
  191 |                                        "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
      |                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/kunit/test.h:597:37: note: in definition of macro '_KUNIT_FAILED'
  597 |                                     fmt,                                       \
      |                                     ^~~
include/kunit/test.h:662:9: note: in expansion of macro 'KUNIT_UNARY_ASSERTION'
  662 |         KUNIT_UNARY_ASSERTION(test,                                            \
      |         ^~~~~~~~~~~~~~~~~~~~~
include/kunit/test.h:1233:9: note: in expansion of macro 'KUNIT_FALSE_MSG_ASSERTION'
 1233 |         KUNIT_FALSE_MSG_ASSERTION(test,                                        \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/tests/drm_buddy_test.c:186:17: note: in expansion of macro 'KUNIT_ASSERT_FALSE_MSG'
  186 |                 KUNIT_ASSERT_FALSE_MSG(test,
      |                 ^~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/tests/drm_buddy_test.c:191:91: note: format string is defined here
  191 |                                        "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
      |                                                                                          ~^
      |                                                                                           |
      |                                                                                           unsigned int
cc1: all warnings being treated as errors

Caused by commit

  806cb2270237 ("kunit: Annotate _MSG assertion variants with gnu printf specifiers")

interacting with commit

  c70703320e55 ("drm/tests/drm_buddy: add alloc_range_bias test")

from the drm-misc-fixes tree.

I have applied the following patch for today (this should probably
actually be fixed in the drm-misc-fixes tree).

From: Stephen Rothwell <[email-masked]>
Date: Thu, 29 Feb 2024 15:18:36 +1100
Subject: [PATCH] fix up for "drm/tests/drm_buddy: add alloc_range_bias test"

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 drivers/gpu/drm/tests/drm_buddy_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
index 1e73e3f0d278..369edf587b44 100644
--- a/drivers/gpu/drm/tests/drm_buddy_test.c
+++ b/drivers/gpu/drm/tests/drm_buddy_test.c
@@ -188,7 +188,7 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
 							      bias_end, size, ps,
 							      &allocated,
 							      DRM_BUDDY_RANGE_ALLOCATION),
-				       "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
+				       "buddy_alloc failed with bias(%x-%x), size=%u\n",
 				       bias_start, bias_end, size);
 		bias_rem -= size;
 
-- 
2.43.0

-- 
Cheers,
Stephen Rothwell