linux-kernel - [PATCH v2 1/7] mm/selftests: Fix incorrect pointer being passed to mark

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Message-ID: <20250703060656.54345-2-aboorvad@linux.ibm.com>
Date: Thu,  3 Jul 2025 11:36:50 +0530
From: Aboorva Devarajan <aboorvad@...ux.ibm.com>
To: akpm@...ux-foundation.org, Liam.Howlett@...cle.com,
        lorenzo.stoakes@...cle.com, shuah@...nel.org, pfalcato@...e.de,
        david@...hat.com, ziy@...dia.com, baolin.wang@...ux.alibaba.com,
        npache@...hat.com, ryan.roberts@....com, dev.jain@....com,
        baohua@...nel.org
Cc: linux-mm@...ck.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, donettom@...ux.ibm.com,
        ritesh.list@...il.com, aboorvad@...ux.ibm.com
Subject: [PATCH v2 1/7] mm/selftests: Fix incorrect pointer being passed to mark_range()

From: Donet Tom <donettom@...ux.ibm.com>

In main(), the high address is stored in hptr, but for mark_range(),
the address passed is ptr, not hptr. Fixed this by changing ptr[i] to
hptr[i] in mark_range() function call.

Fixes: b2a79f62133a ("selftests/mm: virtual_address_range: unmap chunks after validation")
Signed-off-by: Donet Tom <donettom@...ux.ibm.com>
Signed-off-by: Aboorva Devarajan <aboorvad@...ux.ibm.com>
---
 tools/testing/selftests/mm/virtual_address_range.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/virtual_address_range.c b/tools/testing/selftests/mm/virtual_address_range.c
index 169dbd692bf5..e24c36a39f22 100644
--- a/tools/testing/selftests/mm/virtual_address_range.c
+++ b/tools/testing/selftests/mm/virtual_address_range.c
@@ -227,7 +227,7 @@ int main(int argc, char *argv[])
 		if (hptr[i] == MAP_FAILED)
 			break;
 
-		mark_range(ptr[i], MAP_CHUNK_SIZE);
+		mark_range(hptr[i], MAP_CHUNK_SIZE);
 		validate_addr(hptr[i], 1);
 	}
 	hchunks = i;
-- 
2.43.5