linux-kernel - [PATCH] tools/testing/vma: add missing function stub

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Message-Id: <20250528-fix-vma-test-v1-1-c8a5f533b38f@oracle.com>
Date: Wed, 28 May 2025 15:15:39 +0100
From: Lorenzo Stoakes via B4 Relay <devnull+lorenzo.stoakes.oracle.com@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>, 
 "Liam R. Howlett" <Liam.Howlett@...cle.com>, 
 Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>, 
 Pedro Falcato <pfalcato@...e.de>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Subject: [PATCH] tools/testing/vma: add missing function stub

From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>

The hugetlb fix introduced in commit ee40c9920ac2 ("mm: fix copy_vma()
error handling for hugetlb mappings") mistakenly did not provide a stub for
the VMA userland testing, which results in a compile error when trying to
build this.

Provide this stub to resolve the issue.

---
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
---
 tools/testing/vma/vma_internal.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
index f6e45e62da3a6ee007b7431573f27ef5c2533865..441feb21aa5a92b7edddb07258c7f368171de15b 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -1461,4 +1461,9 @@ static inline int __call_mmap_prepare(struct file *file,
 	return file->f_op->mmap_prepare(desc);
 }

+static inline void fixup_hugetlb_reservations(struct vm_area_struct *vma)
+{
+	(void)vma;
+}
+
 #endif	/* __MM_VMA_INTERNAL_H */

---
base-commit: 1637eadc7fdf2fa4069a149b1e836656a3b64150
change-id: 20250528-fix-vma-test-57b138f28f46

Best regards,
-- 
Lorenzo Stoakes <lorenzo.stoakes@...cle.com>