[PATCH v2 3/3] media: mediatek: vcodedc: Fix Wcast-function-type-strict warnings
From: Ricardo Ribalda
Date: Mon Feb 26 2024 - 12:34:19 EST
Building with LLVM=1 throws the following warning:
drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c:38:32: warning: cast from 'mtk_vcodec_ipi_handler' (aka 'void (*)(void *, unsigned int, void *)') to 'ipi_handler_t' (aka 'void (*)(const void *, unsigned int, void *)') converts to incompatible function type [-Wcast-function-type-strict]
Constify the types to avoid the warning.
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c | 12 ++++++------
.../media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h | 2 +-
.../platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c | 10 +---------
drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c | 2 +-
drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c | 2 +-
drivers/remoteproc/mtk_scp.c | 4 ++--
include/linux/remoteproc/mtk_scp.h | 2 +-
include/linux/rpmsg/mtk_rpmsg.h | 2 +-
8 files changed, 14 insertions(+), 22 deletions(-)
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
index 49fc2e9d45dd5..c4f1c49b9d52a 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
@@ -77,10 +77,10 @@ void mdp_vpu_shared_mem_free(struct mdp_vpu_dev *vpu)
dma_free_wc(dev, vpu->config_size, vpu->config, vpu->config_addr);
}
-static void mdp_vpu_ipi_handle_init_ack(void *data, unsigned int len,
+static void mdp_vpu_ipi_handle_init_ack(const void *data, unsigned int len,
void *priv)
{
- struct mdp_ipi_init_msg *msg = (struct mdp_ipi_init_msg *)data;
+ const struct mdp_ipi_init_msg *msg = data;
struct mdp_vpu_dev *vpu =
(struct mdp_vpu_dev *)(unsigned long)msg->drv_data;
@@ -91,10 +91,10 @@ static void mdp_vpu_ipi_handle_init_ack(void *data, unsigned int len,
complete(&vpu->ipi_acked);
}
-static void mdp_vpu_ipi_handle_deinit_ack(void *data, unsigned int len,
+static void mdp_vpu_ipi_handle_deinit_ack(const void *data, unsigned int len,
void *priv)
{
- struct mdp_ipi_deinit_msg *msg = (struct mdp_ipi_deinit_msg *)data;
+ const struct mdp_ipi_deinit_msg *msg = data;
struct mdp_vpu_dev *vpu =
(struct mdp_vpu_dev *)(unsigned long)msg->drv_data;
@@ -102,10 +102,10 @@ static void mdp_vpu_ipi_handle_deinit_ack(void *data, unsigned int len,
complete(&vpu->ipi_acked);
}
-static void mdp_vpu_ipi_handle_frame_ack(void *data, unsigned int len,
+static void mdp_vpu_ipi_handle_frame_ack(const void *data, unsigned int len,
void *priv)
{
- struct img_sw_addr *addr = (struct img_sw_addr *)data;
+ const struct img_sw_addr *addr = data;
struct img_ipi_frameparam *param =
(struct img_ipi_frameparam *)(unsigned long)addr->va;
struct mdp_vpu_dev *vpu =
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
index 300363a40158c..2561b99c95871 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw.h
@@ -23,7 +23,7 @@ enum mtk_vcodec_fw_use {
struct mtk_vcodec_fw;
-typedef void (*mtk_vcodec_ipi_handler) (void *data,
+typedef void (*mtk_vcodec_ipi_handler) (const void *data,
unsigned int len, void *priv);
struct mtk_vcodec_fw *mtk_vcodec_fw_select(void *priv, enum mtk_vcodec_fw_type type,
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c
index 9f6e4b59455da..4c34344dc7dcb 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c
@@ -29,15 +29,7 @@ static int mtk_vcodec_vpu_set_ipi_register(struct mtk_vcodec_fw *fw, int id,
mtk_vcodec_ipi_handler handler,
const char *name, void *priv)
{
- /*
- * The handler we receive takes a void * as its first argument. We
- * cannot change this because it needs to be passed down to the rproc
- * subsystem when SCP is used. VPU takes a const argument, which is
- * more constrained, so the conversion below is safe.
- */
- ipi_handler_t handler_const = (ipi_handler_t)handler;
-
- return vpu_ipi_register(fw->pdev, id, handler_const, name, priv);
+ return vpu_ipi_register(fw->pdev, id, handler, name, priv);
}
static int mtk_vcodec_vpu_ipi_send(struct mtk_vcodec_fw *fw, int id, void *buf,
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
index 82e57ae983d55..a840dd2a48d0e 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
@@ -97,7 +97,7 @@ static bool vpu_dec_check_ap_inst(struct mtk_vcodec_dec_dev *dec_dev, struct vde
* This function runs in interrupt context and it means there's an IPI MSG
* from VPU.
*/
-static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
+static void vpu_dec_ipi_handler(const void *data, unsigned int len, void *priv)
{
struct mtk_vcodec_dec_dev *dec_dev;
const struct vdec_vpu_ipi_ack *msg = data;
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
index 84ad1cc6ad171..ea0c4a281d1a1 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
@@ -57,7 +57,7 @@ static bool vpu_enc_check_ap_inst(struct mtk_vcodec_enc_dev *enc_dev, struct ven
return ret;
}
-static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv)
+static void vpu_enc_ipi_handler(const void *data, unsigned int len, void *priv)
{
struct mtk_vcodec_enc_dev *enc_dev;
const struct venc_vpu_ipi_msg_common *msg = data;
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index a35409eda0cf2..b508136b416a8 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -78,10 +78,10 @@ static void scp_wdt_handler(struct mtk_scp *scp, u32 scp_to_host)
rproc_report_crash(scp_node->rproc, RPROC_WATCHDOG);
}
-static void scp_init_ipi_handler(void *data, unsigned int len, void *priv)
+static void scp_init_ipi_handler(const void *data, unsigned int len, void *priv)
{
struct mtk_scp *scp = priv;
- struct scp_run *run = data;
+ const struct scp_run *run = data;
scp->run.signaled = run->signaled;
strscpy(scp->run.fw_ver, run->fw_ver, SCP_FW_VER_LEN);
diff --git a/include/linux/remoteproc/mtk_scp.h b/include/linux/remoteproc/mtk_scp.h
index 7c2b7cc9fe6c1..84e579940b8e5 100644
--- a/include/linux/remoteproc/mtk_scp.h
+++ b/include/linux/remoteproc/mtk_scp.h
@@ -8,7 +8,7 @@
#include <linux/platform_device.h>
-typedef void (*scp_ipi_handler_t) (void *data,
+typedef void (*scp_ipi_handler_t) (const void *data,
unsigned int len,
void *priv);
struct mtk_scp;
diff --git a/include/linux/rpmsg/mtk_rpmsg.h b/include/linux/rpmsg/mtk_rpmsg.h
index 363b60178040b..9d67507471fba 100644
--- a/include/linux/rpmsg/mtk_rpmsg.h
+++ b/include/linux/rpmsg/mtk_rpmsg.h
@@ -9,7 +9,7 @@
#include <linux/platform_device.h>
#include <linux/remoteproc.h>
-typedef void (*ipi_handler_t)(void *data, unsigned int len, void *priv);
+typedef void (*ipi_handler_t)(const void *data, unsigned int len, void *priv);
/*
* struct mtk_rpmsg_info - IPI functions tied to the rpmsg device.
--
2.44.0.rc0.258.g7320e95886-goog