linux-kernel - linux-next: build failure after merge of the mm tree

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Message-ID: <20241209170829.11311e70@canb.auug.org.au>
Date: Mon, 9 Dec 2024 17:08:29 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Suren Baghdasaryan <surenb@...gle.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the mm tree

Hi all,

After merging the mm tree, today's linux-next build (powerpc allyesconfig)
failed like this:

In file included from mm/damon/vaddr.c:736:
mm/damon/tests/vaddr-kunit.h: In function 'damon_test_three_regions_in_vmas':
mm/damon/tests/vaddr-kunit.h:92:1: error: the frame size of 3280 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
   92 | }
      | ^

Presumably caused by commit

  062111898568 ("mm: move per-vma lock into vm_area_struct")

I have applied the following hack for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 9 Dec 2024 16:33:16 +1100
Subject: [PATCH] fix up for "mm: move per-vma lock into vm_area_struct"

on PowerPC that change causes a frame size error

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 mm/damon/tests/vaddr-kunit.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/damon/tests/vaddr-kunit.h b/mm/damon/tests/vaddr-kunit.h
index b9fe3bc8472b..564373fadf38 100644
--- a/mm/damon/tests/vaddr-kunit.h
+++ b/mm/damon/tests/vaddr-kunit.h
@@ -14,6 +14,7 @@
 
 #include <kunit/test.h>
 
+#ifdef notdef
 static int __link_vmas(struct maple_tree *mt, struct vm_area_struct *vmas,
 			ssize_t nr_vmas)
 {
@@ -90,6 +91,7 @@ static void damon_test_three_regions_in_vmas(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, 300ul, regions[2].start);
 	KUNIT_EXPECT_EQ(test, 330ul, regions[2].end);
 }
+#endif
 
 static struct damon_region *__nth_region_of(struct damon_target *t, int idx)
 {
@@ -306,7 +308,7 @@ static void damon_test_split_evenly(struct kunit *test)
 }
 
 static struct kunit_case damon_test_cases[] = {
-	KUNIT_CASE(damon_test_three_regions_in_vmas),
+	// KUNIT_CASE(damon_test_three_regions_in_vmas),
 	KUNIT_CASE(damon_test_apply_three_regions1),
 	KUNIT_CASE(damon_test_apply_three_regions2),
 	KUNIT_CASE(damon_test_apply_three_regions3),
-- 
2.45.2

-- 
Cheers,
Stephen Rothwell

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