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authorJanusz Krzysztofik <janusz.krzysztofik@linux.intel.com>2020-07-17 12:28:05 +0200
committerJanusz Krzysztofik <janusz.krzysztofik@linux.intel.com>2020-09-14 20:45:50 +0200
commitc7d7c28d97607dcfc48e4299af90ad06ca1b5cd5 (patch)
treec05b1dd2cf8853077e36bfa0e9eed3deb1d5e4b7
parent9872f3feb61d77d8e9e4de29e25c5258d6378b92 (diff)
tests/core_hotunplug: Pass errors via a data structure field
A pointer to fatal error messages can be passed around via hotunplug structure, no need to declare it as global. v2: Rebase only. v3: Refresh. Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> Reviewed-by: MichaƂ Winiarski <michal.winiarski@intel.com>
-rw-r--r--tests/core_hotunplug.c96
1 files changed, 47 insertions, 49 deletions
diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index cb5f1047..5c9c4d8b 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -45,6 +45,7 @@ struct hotunplug {
int sysfs_drv;
} fd;
const char *dev_bus_addr;
+ const char *failure;
};
/* Helpers */
@@ -102,80 +103,77 @@ static void prepare(struct hotunplug *priv, char *buf, int buflen)
}
}
-static const char *failure;
-
/* Unbind the driver from the device */
-static void driver_unbind(int fd_sysfs_drv, const char *dev_bus_addr,
- const char *prefix)
+static void driver_unbind(struct hotunplug *priv, const char *prefix)
{
igt_debug("%sunbinding the driver from the device\n", prefix);
- failure = "Driver unbind timeout!";
- igt_set_timeout(60, failure);
- igt_sysfs_set(fd_sysfs_drv, "unbind", dev_bus_addr);
+ priv->failure = "Driver unbind timeout!";
+ igt_set_timeout(60, priv->failure);
+ igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
igt_reset_timeout();
- failure = NULL;
+ priv->failure = NULL;
- /* don't close fd_sysfs_drv, it will be used for driver rebinding */
+ /* don't close fd.sysfs_drv, it will be used for driver rebinding */
}
/* Re-bind the driver to the device */
-static void driver_bind(int fd_sysfs_drv, const char *dev_bus_addr)
+static void driver_bind(struct hotunplug *priv)
{
igt_debug("rebinding the driver to the device\n");
- failure = "Driver re-bind timeout!";
- igt_set_timeout(60, failure);
- igt_sysfs_set(fd_sysfs_drv, "bind", dev_bus_addr);
+ priv->failure = "Driver re-bind timeout!";
+ igt_set_timeout(60, priv->failure);
+ igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
igt_reset_timeout();
- failure = NULL;
+ priv->failure = NULL;
- close(fd_sysfs_drv);
+ close(priv->fd.sysfs_drv);
}
/* Remove (virtually unplug) the device from its bus */
-static void device_unplug(int fd_sysfs_dev, const char *prefix)
+static void device_unplug(struct hotunplug *priv, const char *prefix)
{
igt_debug("%sunplugging the device\n", prefix);
- failure = "Device unplug timeout!";
- igt_set_timeout(60, failure);
- igt_sysfs_set(fd_sysfs_dev, "device/remove", "1");
+ priv->failure = "Device unplug timeout!";
+ igt_set_timeout(60, priv->failure);
+ igt_sysfs_set(priv->fd.sysfs_dev, "device/remove", "1");
igt_reset_timeout();
- failure = NULL;
+ priv->failure = NULL;
- close(fd_sysfs_dev);
+ close(priv->fd.sysfs_dev);
}
/* Re-discover the device by rescanning its bus */
-static void bus_rescan(int fd_sysfs_bus)
+static void bus_rescan(struct hotunplug *priv)
{
igt_debug("rediscovering the device\n");
- failure = "Bus rescan timeout!";
- igt_set_timeout(60, failure);
- igt_sysfs_set(fd_sysfs_bus, "rescan", "1");
+ priv->failure = "Bus rescan timeout!";
+ igt_set_timeout(60, priv->failure);
+ igt_sysfs_set(priv->fd.sysfs_bus, "rescan", "1");
igt_reset_timeout();
- failure = NULL;
+ priv->failure = NULL;
- close(fd_sysfs_bus);
+ close(priv->fd.sysfs_bus);
}
-static void healthcheck(void)
+static void healthcheck(struct hotunplug *priv)
{
int fd_drm;
/* device name may have changed, rebuild IGT device list */
igt_devices_scan(true);
- failure = "Device reopen failure!";
+ priv->failure = "Device reopen failure!";
fd_drm = local_drm_open_driver("re", " for health check");
- failure = NULL;
+ priv->failure = NULL;
if (is_i915_device(fd_drm)) {
- failure = "GEM failure";
+ priv->failure = "GEM failure";
igt_require_gem(fd_drm);
- failure = NULL;
+ priv->failure = NULL;
}
close(fd_drm);
@@ -207,11 +205,11 @@ static void unbind_rebind(struct hotunplug *priv)
igt_debug("closing the device\n");
close(priv->fd.drm);
- driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "");
+ driver_unbind(priv, "");
- driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+ driver_bind(priv);
- healthcheck();
+ healthcheck(priv);
}
static void unplug_rescan(struct hotunplug *priv)
@@ -221,11 +219,11 @@ static void unplug_rescan(struct hotunplug *priv)
igt_debug("closing the device\n");
close(priv->fd.drm);
- device_unplug(priv->fd.sysfs_dev, "");
+ device_unplug(priv, "");
- bus_rescan(priv->fd.sysfs_bus);
+ bus_rescan(priv);
- healthcheck();
+ healthcheck(priv);
}
static void hotunbind_lateclose(struct hotunplug *priv)
@@ -234,35 +232,35 @@ static void hotunbind_lateclose(struct hotunplug *priv)
prepare(priv, buf, sizeof(buf));
- driver_unbind(priv->fd.sysfs_drv, priv->dev_bus_addr, "hot ");
+ driver_unbind(priv, "hot ");
- driver_bind(priv->fd.sysfs_drv, priv->dev_bus_addr);
+ driver_bind(priv);
igt_debug("late closing the unbound device instance\n");
close(priv->fd.drm);
- healthcheck();
+ healthcheck(priv);
}
static void hotunplug_lateclose(struct hotunplug *priv)
{
prepare(priv, NULL, 0);
- device_unplug(priv->fd.sysfs_dev, "hot ");
+ device_unplug(priv, "hot ");
- bus_rescan(priv->fd.sysfs_bus);
+ bus_rescan(priv);
igt_debug("late closing the removed device instance\n");
close(priv->fd.drm);
- healthcheck();
+ healthcheck(priv);
}
/* Main */
igt_main
{
- struct hotunplug priv;
+ struct hotunplug priv = { .failure = NULL, };
igt_fixture {
int fd_drm;
@@ -286,26 +284,26 @@ igt_main
unbind_rebind(&priv);
igt_fixture
- igt_abort_on_f(failure, "%s\n", failure);
+ igt_abort_on_f(priv.failure, "%s\n", priv.failure);
igt_describe("Check if a device believed to be closed can be cleanly unplugged");
igt_subtest("unplug-rescan")
unplug_rescan(&priv);
igt_fixture
- igt_abort_on_f(failure, "%s\n", failure);
+ igt_abort_on_f(priv.failure, "%s\n", priv.failure);
igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
igt_subtest("hotunbind-lateclose")
hotunbind_lateclose(&priv);
igt_fixture
- igt_abort_on_f(failure, "%s\n", failure);
+ igt_abort_on_f(priv.failure, "%s\n", priv.failure);
igt_describe("Check if a still open device can be cleanly unplugged, then released");
igt_subtest("hotunplug-lateclose")
hotunplug_lateclose(&priv);
igt_fixture
- igt_abort_on_f(failure, "%s\n", failure);
+ igt_abort_on_f(priv.failure, "%s\n", priv.failure);
}