[PATCH 3/4] tests/qtest: Only run fuzz-megasas-test if megasas device is available

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

This test fails when QEMU is built without the megasas device,
restrict it to its availability.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 tests/qtest/fuzz-megasas-test.c | 49 +++++++++++++++++++++++++++++++++
 tests/qtest/fuzz-test.c         | 25 -----------------
 MAINTAINERS                     |  1 +
 tests/qtest/meson.build         |  4 ++-
 4 files changed, 53 insertions(+), 26 deletions(-)
 create mode 100644 tests/qtest/fuzz-megasas-test.c

diff --git a/tests/qtest/fuzz-megasas-test.c b/tests/qtest/fuzz-megasas-test.c
new file mode 100644
index 00000000000..940a76bf25a
--- /dev/null
+++ b/tests/qtest/fuzz-megasas-test.c
@@ -0,0 +1,49 @@
+/*
+ * QTest fuzzer-generated testcase for megasas device
+ *
+ * Copyright (c) 2020 Li Qiang <liq3ea@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+
+#include "libqos/libqtest.h"
+
+/*
+ * This used to trigger the assert in scsi_dma_complete
+ * https://bugs.launchpad.net/qemu/+bug/1878263
+ */
+static void test_lp1878263_megasas_zero_iov_cnt(void)
+{
+    QTestState *s;
+
+    s = qtest_init("-nographic -monitor none -serial none "
+                   "-M q35 -device megasas -device scsi-cd,drive=null0 "
+                   "-blockdev driver=null-co,read-zeroes=on,node-name=null0");
+    qtest_outl(s, 0xcf8, 0x80001818);
+    qtest_outl(s, 0xcfc, 0xc101);
+    qtest_outl(s, 0xcf8, 0x8000181c);
+    qtest_outl(s, 0xcf8, 0x80001804);
+    qtest_outw(s, 0xcfc, 0x7);
+    qtest_outl(s, 0xcf8, 0x8000186a);
+    qtest_writeb(s, 0x14, 0xfe);
+    qtest_writeb(s, 0x0, 0x02);
+    qtest_outb(s, 0xc1c0, 0x17);
+    qtest_quit(s);
+}
+
+int main(int argc, char **argv)
+{
+    const char *arch = qtest_get_arch();
+
+    g_test_init(&argc, &argv, NULL);
+
+    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
+        qtest_add_func("fuzz/test_lp1878263_megasas_zero_iov_cnt",
+                       test_lp1878263_megasas_zero_iov_cnt);
+    }
+
+    return g_test_run();
+}
diff --git a/tests/qtest/fuzz-test.c b/tests/qtest/fuzz-test.c
index cdb1100a0b8..6188fbb8e96 100644
--- a/tests/qtest/fuzz-test.c
+++ b/tests/qtest/fuzz-test.c
@@ -11,29 +11,6 @@
 
 #include "libqos/libqtest.h"
 
-/*
- * This used to trigger the assert in scsi_dma_complete
- * https://bugs.launchpad.net/qemu/+bug/1878263
- */
-static void test_lp1878263_megasas_zero_iov_cnt(void)
-{
-    QTestState *s;
-
-    s = qtest_init("-nographic -monitor none -serial none "
-                   "-M q35 -device megasas -device scsi-cd,drive=null0 "
-                   "-blockdev driver=null-co,read-zeroes=on,node-name=null0");
-    qtest_outl(s, 0xcf8, 0x80001818);
-    qtest_outl(s, 0xcfc, 0xc101);
-    qtest_outl(s, 0xcf8, 0x8000181c);
-    qtest_outl(s, 0xcf8, 0x80001804);
-    qtest_outw(s, 0xcfc, 0x7);
-    qtest_outl(s, 0xcf8, 0x8000186a);
-    qtest_writeb(s, 0x14, 0xfe);
-    qtest_writeb(s, 0x0, 0x02);
-    qtest_outb(s, 0xc1c0, 0x17);
-    qtest_quit(s);
-}
-
 static void test_lp1878642_pci_bus_get_irq_level_assert(void)
 {
     QTestState *s;
@@ -104,8 +81,6 @@ int main(int argc, char **argv)
     g_test_init(&argc, &argv, NULL);
 
     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
-        qtest_add_func("fuzz/test_lp1878263_megasas_zero_iov_cnt",
-                       test_lp1878263_megasas_zero_iov_cnt);
         qtest_add_func("fuzz/test_lp1878642_pci_bus_get_irq_level_assert",
                        test_lp1878642_pci_bus_get_irq_level_assert);
         qtest_add_func("fuzz/test_mmio_oob_from_memory_region_cache",
diff --git a/MAINTAINERS b/MAINTAINERS
index cb0656aec3d..b2ef820a9fa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1925,6 +1925,7 @@ S: Supported
 F: hw/scsi/megasas.c
 F: hw/scsi/mfi.h
 F: tests/qtest/megasas-test.c
+F: tests/qtest/fuzz-megasas-test.c
 
 Network packet abstractions
 M: Dmitry Fleytman <dmitry.fleytman@gmail.com>
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 874f5d34674..a24e7f1c34a 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -4,7 +4,9 @@
   subdir_done()
 endif
 
-qtests_generic = [
+qtests_generic = \
+  (config_all_devices.has_key('CONFIG_MEGASAS_SCSI_PCI') ? ['fuzz-megasas-test'] : []) + \
+  [
   'cdrom-test',
   'device-introspect-test',
   'machine-none-test',
-- 
2.26.2