lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230720-kms-kunit-actions-rework-v2-6-175017bd56ab@kernel.org>
Date:   Thu, 20 Jul 2023 13:15:51 +0200
From:   Maxime Ripard <mripard@...nel.org>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Emma Anholt <emma@...olt.net>
Cc:     MaĆ­ra Canal <mairacanal@...eup.net>,
        Javier Martinez Canillas <javierm@...hat.com>,
        dri-devel@...ts.freedesktop.org, David Gow <davidgow@...gle.com>,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, Maxime Ripard <mripard@...nel.org>,
        Brendan Higgins <brendan.higgins@...ux.dev>
Subject: [PATCH v2 06/11] drm/tests: helpers: Create a helper to allocate
 an atomic state

As we gain more tests, boilerplate to allocate an atomic state and free
it starts to be there more and more as well.

In order to reduce the allocation boilerplate, we can create a helper
to create that atomic state, and call an action when the test is done.
This will also clean up the exit path.

Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>
Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
 drivers/gpu/drm/tests/drm_kunit_helpers.c | 39 +++++++++++++++++++++++++++++++
 include/drm/drm_kunit_helpers.h           |  5 ++++
 2 files changed, 44 insertions(+)

diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
index 5130d4553262..d3b2c6b48163 100644
--- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 
+#include <drm/drm_atomic.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_kunit_helpers.h>
 #include <drm/drm_managed.h>
@@ -161,5 +162,43 @@ drm_kunit_helper_acquire_ctx_alloc(struct kunit *test)
 }
 EXPORT_SYMBOL_GPL(drm_kunit_helper_acquire_ctx_alloc);
 
+/**
+ * drm_kunit_helper_atomic_state_alloc - Allocates an atomic state
+ * @test: The test context object
+ * @drm: The device to alloc the state for
+ * @ctx: Locking context for that atomic update
+ *
+ * Allocates a empty atomic state.
+ *
+ * The state is tied to the kunit test context, so we must not call
+ * drm_atomic_state_put() on it, it will be done so automatically.
+ *
+ * Returns:
+ * An ERR_PTR on error, a pointer to the newly allocated state otherwise
+ */
+struct drm_atomic_state *
+drm_kunit_helper_atomic_state_alloc(struct kunit *test,
+				    struct drm_device *drm,
+				    struct drm_modeset_acquire_ctx *ctx)
+{
+	struct drm_atomic_state *state;
+	int ret;
+
+	state = drm_atomic_state_alloc(drm);
+	if (!state)
+		return ERR_PTR(-ENOMEM);
+
+	ret = kunit_add_action_or_reset(test,
+					(kunit_action_t *)drm_atomic_state_put,
+					state);
+	if (ret)
+		return ERR_PTR(ret);
+
+	state->acquire_ctx = ctx;
+
+	return state;
+}
+EXPORT_SYMBOL_GPL(drm_kunit_helper_atomic_state_alloc);
+
 MODULE_AUTHOR("Maxime Ripard <maxime@...no.tech>");
 MODULE_LICENSE("GPL");
diff --git a/include/drm/drm_kunit_helpers.h b/include/drm/drm_kunit_helpers.h
index 4ba5e10653c6..514c8a7a32f0 100644
--- a/include/drm/drm_kunit_helpers.h
+++ b/include/drm/drm_kunit_helpers.h
@@ -90,4 +90,9 @@ __drm_kunit_helper_alloc_drm_device(struct kunit *test,
 struct drm_modeset_acquire_ctx *
 drm_kunit_helper_acquire_ctx_alloc(struct kunit *test);
 
+struct drm_atomic_state *
+drm_kunit_helper_atomic_state_alloc(struct kunit *test,
+				    struct drm_device *drm,
+				    struct drm_modeset_acquire_ctx *ctx);
+
 #endif // DRM_KUNIT_HELPERS_H_

-- 
2.41.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ