[PATCH v3 1/9] drm/vc4: Switch to container_of_const
From: Maxime Ripard
Date: Mon Mar 06 2023 - 05:49:55 EST
container_of_const() allows to preserve the pointer constness and is
thus more flexible than inline functions.
Let's switch all our instances of container_of() to
container_of_const().
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/gpu/drm/vc4/tests/vc4_mock.h | 3 ++
drivers/gpu/drm/vc4/tests/vc4_mock_output.c | 4 +-
drivers/gpu/drm/vc4/vc4_dpi.c | 7 +---
drivers/gpu/drm/vc4/vc4_drv.h | 65 +++++++++--------------------
drivers/gpu/drm/vc4/vc4_dsi.c | 17 +++-----
drivers/gpu/drm/vc4/vc4_hdmi.h | 16 +++----
drivers/gpu/drm/vc4/vc4_kms.c | 16 +++----
drivers/gpu/drm/vc4/vc4_plane.c | 3 +-
drivers/gpu/drm/vc4/vc4_txp.c | 12 ++----
drivers/gpu/drm/vc4/vc4_vec.c | 14 ++-----
10 files changed, 51 insertions(+), 106 deletions(-)
diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock.h b/drivers/gpu/drm/vc4/tests/vc4_mock.h
index db8e9a141ef8..2d0b339bd9f3 100644
--- a/drivers/gpu/drm/vc4/tests/vc4_mock.h
+++ b/drivers/gpu/drm/vc4/tests/vc4_mock.h
@@ -43,6 +43,9 @@ struct vc4_dummy_output {
struct drm_connector connector;
};
+#define encoder_to_vc4_dummy_output(_enc) \
+ container_of_const(_enc, struct vc4_dummy_output, encoder.base)
+
struct vc4_dummy_output *vc4_dummy_output(struct kunit *test,
struct drm_device *drm,
struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock_output.c b/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
index 8d33be828d9a..6e11fcc9ef45 100644
--- a/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
+++ b/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
@@ -80,7 +80,7 @@ int vc4_mock_atomic_add_output(struct kunit *test,
crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
- output = container_of(encoder, struct vc4_dummy_output, encoder.base);
+ output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
@@ -126,7 +126,7 @@ int vc4_mock_atomic_del_output(struct kunit *test,
ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
- output = container_of(encoder, struct vc4_dummy_output, encoder.base);
+ output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c
index f518d6e59ed6..e68c07d86040 100644
--- a/drivers/gpu/drm/vc4/vc4_dpi.c
+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
@@ -97,11 +97,8 @@ struct vc4_dpi {
struct debugfs_regset32 regset;
};
-static inline struct vc4_dpi *
-to_vc4_dpi(struct drm_encoder *encoder)
-{
- return container_of(encoder, struct vc4_dpi, encoder.base);
-}
+#define to_vc4_dpi(_encoder) \
+ container_of_const(_encoder, struct vc4_dpi, encoder.base)
#define DPI_READ(offset) \
({ \
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 95069bb16821..e23084f3d6c2 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -232,11 +232,8 @@ struct vc4_dev {
struct kref bin_bo_kref;
};
-static inline struct vc4_dev *
-to_vc4_dev(const struct drm_device *dev)
-{
- return container_of(dev, struct vc4_dev, base);
-}
+#define to_vc4_dev(_dev) \
+ container_of_const(_dev, struct vc4_dev, base)
struct vc4_bo {
struct drm_gem_dma_object base;
@@ -285,11 +282,8 @@ struct vc4_bo {
struct mutex madv_lock;
};
-static inline struct vc4_bo *
-to_vc4_bo(const struct drm_gem_object *bo)
-{
- return container_of(to_drm_gem_dma_obj(bo), struct vc4_bo, base);
-}
+#define to_vc4_bo(_bo) \
+ container_of_const(to_drm_gem_dma_obj(_bo), struct vc4_bo, base)
struct vc4_fence {
struct dma_fence base;
@@ -298,11 +292,8 @@ struct vc4_fence {
uint64_t seqno;
};
-static inline struct vc4_fence *
-to_vc4_fence(const struct dma_fence *fence)
-{
- return container_of(fence, struct vc4_fence, base);
-}
+#define to_vc4_fence(_fence) \
+ container_of_const(_fence, struct vc4_fence, base)
struct vc4_seqno_cb {
struct work_struct work;
@@ -368,11 +359,8 @@ struct vc4_hvs_state {
} fifo_state[HVS_NUM_CHANNELS];
};
-static inline struct vc4_hvs_state *
-to_vc4_hvs_state(const struct drm_private_state *priv)
-{
- return container_of(priv, struct vc4_hvs_state, base);
-}
+#define to_vc4_hvs_state(_state) \
+ container_of_const(_state, struct vc4_hvs_state, base)
struct vc4_hvs_state *vc4_hvs_get_global_state(struct drm_atomic_state *state);
struct vc4_hvs_state *vc4_hvs_get_old_global_state(const struct drm_atomic_state *state);
@@ -382,11 +370,8 @@ struct vc4_plane {
struct drm_plane base;
};
-static inline struct vc4_plane *
-to_vc4_plane(const struct drm_plane *plane)
-{
- return container_of(plane, struct vc4_plane, base);
-}
+#define to_vc4_plane(_plane) \
+ container_of_const(_plane, struct vc4_plane, base)
enum vc4_scaling_mode {
VC4_SCALING_NONE,
@@ -458,11 +443,8 @@ struct vc4_plane_state {
u64 membus_load;
};
-static inline struct vc4_plane_state *
-to_vc4_plane_state(const struct drm_plane_state *state)
-{
- return container_of(state, struct vc4_plane_state, base);
-}
+#define to_vc4_plane_state(_state) \
+ container_of_const(_state, struct vc4_plane_state, base)
enum vc4_encoder_type {
VC4_ENCODER_TYPE_NONE,
@@ -489,11 +471,8 @@ struct vc4_encoder {
void (*post_crtc_powerdown)(struct drm_encoder *encoder, struct drm_atomic_state *state);
};
-static inline struct vc4_encoder *
-to_vc4_encoder(const struct drm_encoder *encoder)
-{
- return container_of(encoder, struct vc4_encoder, base);
-}
+#define to_vc4_encoder(_encoder) \
+ container_of_const(_encoder, struct vc4_encoder, base)
static inline
struct drm_encoder *vc4_find_encoder_by_type(struct drm_device *drm,
@@ -591,11 +570,8 @@ struct vc4_crtc {
unsigned int current_hvs_channel;
};
-static inline struct vc4_crtc *
-to_vc4_crtc(const struct drm_crtc *crtc)
-{
- return container_of(crtc, struct vc4_crtc, base);
-}
+#define to_vc4_crtc(_crtc) \
+ container_of_const(_crtc, struct vc4_crtc, base)
static inline const struct vc4_crtc_data *
vc4_crtc_to_vc4_crtc_data(const struct vc4_crtc *crtc)
@@ -608,7 +584,7 @@ vc4_crtc_to_vc4_pv_data(const struct vc4_crtc *crtc)
{
const struct vc4_crtc_data *data = vc4_crtc_to_vc4_crtc_data(crtc);
- return container_of(data, struct vc4_pv_data, base);
+ return container_of_const(data, struct vc4_pv_data, base);
}
struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
@@ -636,11 +612,8 @@ struct vc4_crtc_state {
#define VC4_HVS_CHANNEL_DISABLED ((unsigned int)-1)
-static inline struct vc4_crtc_state *
-to_vc4_crtc_state(const struct drm_crtc_state *crtc_state)
-{
- return container_of(crtc_state, struct vc4_crtc_state, base);
-}
+#define to_vc4_crtc_state(_state) \
+ container_of_const(_state, struct vc4_crtc_state, base)
#define V3D_READ(offset) \
({ \
diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c
index a5c075f802e4..9e0c355b236f 100644
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
@@ -600,19 +600,14 @@ struct vc4_dsi {
struct debugfs_regset32 regset;
};
-#define host_to_dsi(host) container_of(host, struct vc4_dsi, dsi_host)
+#define host_to_dsi(host) \
+ container_of_const(host, struct vc4_dsi, dsi_host)
-static inline struct vc4_dsi *
-to_vc4_dsi(struct drm_encoder *encoder)
-{
- return container_of(encoder, struct vc4_dsi, encoder.base);
-}
+#define to_vc4_dsi(_encoder) \
+ container_of_const(_encoder, struct vc4_dsi, encoder.base)
-static inline struct vc4_dsi *
-bridge_to_vc4_dsi(struct drm_bridge *bridge)
-{
- return container_of(bridge, struct vc4_dsi, bridge);
-}
+#define bridge_to_vc4_dsi(_bridge) \
+ container_of_const(_bridge, struct vc4_dsi, bridge)
static inline void
dsi_dma_workaround_write(struct vc4_dsi *dsi, u32 offset, u32 val)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index dc3ccd8002a0..5d249ac54cd1 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -223,17 +223,14 @@ struct vc4_hdmi {
enum vc4_hdmi_output_format output_format;
};
-static inline struct vc4_hdmi *
-connector_to_vc4_hdmi(struct drm_connector *connector)
-{
- return container_of(connector, struct vc4_hdmi, connector);
-}
+#define connector_to_vc4_hdmi(_connector) \
+ container_of_const(_connector, struct vc4_hdmi, connector)
static inline struct vc4_hdmi *
encoder_to_vc4_hdmi(struct drm_encoder *encoder)
{
struct vc4_encoder *_encoder = to_vc4_encoder(encoder);
- return container_of(_encoder, struct vc4_hdmi, encoder);
+ return container_of_const(_encoder, struct vc4_hdmi, encoder);
}
struct vc4_hdmi_connector_state {
@@ -243,11 +240,8 @@ struct vc4_hdmi_connector_state {
enum vc4_hdmi_output_format output_format;
};
-static inline struct vc4_hdmi_connector_state *
-conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
-{
- return container_of(conn_state, struct vc4_hdmi_connector_state, base);
-}
+#define conn_state_to_vc4_hdmi_conn_state(_state) \
+ container_of_const(_state, struct vc4_hdmi_connector_state, base)
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct vc4_hdmi_connector_state *vc4_conn_state);
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index a7e3d47c50f4..5495f2a94fa9 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -31,11 +31,8 @@ struct vc4_ctm_state {
int fifo;
};
-static struct vc4_ctm_state *
-to_vc4_ctm_state(const struct drm_private_state *priv)
-{
- return container_of(priv, struct vc4_ctm_state, base);
-}
+#define to_vc4_ctm_state(_state) \
+ container_of_const(_state, struct vc4_ctm_state, base)
struct vc4_load_tracker_state {
struct drm_private_state base;
@@ -43,11 +40,8 @@ struct vc4_load_tracker_state {
u64 membus_load;
};
-static struct vc4_load_tracker_state *
-to_vc4_load_tracker_state(const struct drm_private_state *priv)
-{
- return container_of(priv, struct vc4_load_tracker_state, base);
-}
+#define to_vc4_load_tracker_state(_state) \
+ container_of_const(_state, struct vc4_load_tracker_state, base)
static struct vc4_ctm_state *vc4_get_ctm_state(struct drm_atomic_state *state,
struct drm_private_obj *manager)
@@ -717,7 +711,7 @@ static void vc4_hvs_channels_destroy_state(struct drm_private_obj *obj,
static void vc4_hvs_channels_print_state(struct drm_printer *p,
const struct drm_private_state *state)
{
- struct vc4_hvs_state *hvs_state = to_vc4_hvs_state(state);
+ const struct vc4_hvs_state *hvs_state = to_vc4_hvs_state(state);
unsigned int i;
drm_printf(p, "HVS State\n");
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 97c84a3f5a46..00e713faecd5 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -1334,8 +1334,7 @@ u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist)
u32 vc4_plane_dlist_size(const struct drm_plane_state *state)
{
- const struct vc4_plane_state *vc4_state =
- container_of(state, typeof(*vc4_state), base);
+ const struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
return vc4_state->dlist_count;
}
diff --git a/drivers/gpu/drm/vc4/vc4_txp.c b/drivers/gpu/drm/vc4/vc4_txp.c
index ef5cab2a3aa9..c5abdec03103 100644
--- a/drivers/gpu/drm/vc4/vc4_txp.c
+++ b/drivers/gpu/drm/vc4/vc4_txp.c
@@ -168,15 +168,11 @@ struct vc4_txp {
void __iomem *regs;
};
-static inline struct vc4_txp *encoder_to_vc4_txp(struct drm_encoder *encoder)
-{
- return container_of(encoder, struct vc4_txp, encoder.base);
-}
+#define encoder_to_vc4_txp(_encoder) \
+ container_of_const(_encoder, struct vc4_txp, encoder.base)
-static inline struct vc4_txp *connector_to_vc4_txp(struct drm_connector *conn)
-{
- return container_of(conn, struct vc4_txp, connector.base);
-}
+#define connector_to_vc4_txp(_connector) \
+ container_of_const(_connector, struct vc4_txp, connector.base)
static const struct debugfs_reg32 txp_regs[] = {
VC4_REG32(TXP_DST_PTR),
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index a3782d05cd66..d6e6a1a22eba 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -219,17 +219,11 @@ struct vc4_vec {
writel(val, vec->regs + (offset)); \
} while (0)
-static inline struct vc4_vec *
-encoder_to_vc4_vec(struct drm_encoder *encoder)
-{
- return container_of(encoder, struct vc4_vec, encoder.base);
-}
+#define encoder_to_vc4_vec(_encoder) \
+ container_of_const(_encoder, struct vc4_vec, encoder.base)
-static inline struct vc4_vec *
-connector_to_vc4_vec(struct drm_connector *connector)
-{
- return container_of(connector, struct vc4_vec, connector);
-}
+#define connector_to_vc4_vec(_connector) \
+ container_of_const(_connector, struct vc4_vec, connector)
enum vc4_vec_tv_mode_id {
VC4_VEC_TV_MODE_NTSC,
--
2.39.2