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From: Thomas Huth <thuth@redhat.com>
To: kvm@vger.kernel.org, Janosch Frank <frankja@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, David Hildenbrand <david@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>
Subject: [kvm-unit-tests PATCH] Fix the length in the stsi check for the VM name
Date: Tue,  9 Feb 2021 16:57:05 +0100	[thread overview]
Message-ID: <20210209155705.67601-1-thuth@redhat.com> (raw)

sizeof(somepointer) results in the size of the pointer, i.e. 8 on a
64-bit system, so the

 memcmp(data->ext_names[0], vm_name_ext, sizeof(vm_name_ext))

only compared the first 8 characters of the VM name here. Switch
to a proper array to get the sizeof() right.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 s390x/stsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/s390x/stsi.c b/s390x/stsi.c
index 4109b8d..87d4804 100644
--- a/s390x/stsi.c
+++ b/s390x/stsi.c
@@ -106,7 +106,7 @@ static void test_3_2_2(void)
 				 0x00, 0x03 };
 	/* EBCDIC for "KVM/" */
 	const uint8_t cpi_kvm[] = { 0xd2, 0xe5, 0xd4, 0x61 };
-	const char *vm_name_ext = "kvm-unit-test";
+	const char vm_name_ext[] = "kvm-unit-test";
 	struct stsi_322 *data = (void *)pagebuf;
 
 	report_prefix_push("3.2.2");
-- 
2.27.0


             reply	other threads:[~2021-02-09 15:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-09 15:57 Thomas Huth [this message]
2021-02-09 16:55 ` [kvm-unit-tests PATCH] Fix the length in the stsi check for the VM name David Hildenbrand
2021-02-10  7:55 ` Janosch Frank
2021-02-10 11:05 ` Cornelia Huck

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