Re: [PATCH] [media] mtk-vcodec: fix type mismatches

[tiffany lin]

Hi Arnd,

On Mon, 2016-07-11 at 23:37 +0200, Arnd Bergmann wrote:
> The newly added mtk-vcodec driver produces a number of warnings in an ARM
> allmodconfig build, mainly since it assumes that dma_addr_t is 32-bit wide:
> 
> mtk-vcodec/venc/venc_vp8_if.c: In function 'vp8_enc_alloc_work_buf':
> mtk-vcodec/venc/venc_vp8_if.c:212:191: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
> mtk-vcodec/venc/venc_h264_if.c: In function 'h264_enc_alloc_work_buf':
> mtk-vcodec/venc/venc_h264_if.c:297:190: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
> mtk-vcodec/mtk_vcodec_enc.c: In function 'mtk_venc_worker':
> mtk-vcodec/mtk_vcodec_enc.c:1030:46: error: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type 'size_t {aka unsigned int}' [-Werror=format=]
>   mtk_v4l2_debug(2,
> mtk-vcodec/mtk_vcodec_enc.c:1030:46: error: format '%lx' expects argument of type 'long unsigned int', but argument 10 has type 'size_t {aka unsigned int}' [-Werror=format=]
> mtk-vcodec/venc_vpu_if.c: In function 'vpu_enc_ipi_handler':
> mtk-vcodec/venc_vpu_if.c:40:30: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
>   struct venc_vpu_inst *vpu = (struct venc_vpu_inst *)msg->venc_inst;
> 
> This rearranges the format strings and type casts to what they should have been
> in order to avoid the warnings.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c    | 8 ++++----
>  drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c | 4 ++--
>  drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c  | 4 ++--
>  drivers/media/platform/mtk-vcodec/venc_vpu_if.c       | 4 ++--
>  4 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> index 6dcae0a0a1f2..0b25a8700877 100644
> --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
> @@ -1028,15 +1028,15 @@ static void mtk_venc_worker(struct work_struct *work)
>  	bs_buf.size = (size_t)dst_buf->planes[0].length;
>  
>  	mtk_v4l2_debug(2,
> -			"Framebuf VA=%p PA=%llx Size=0x%lx;VA=%p PA=0x%llx Size=0x%lx;VA=%p PA=0x%llx Size=%zu",
> +			"Framebuf VA=%p PA=%pad Size=0x%zx;VA=%p PA=%pad Size=0x%zx;VA=%p PA=%pad Size=0x%zx",
>  			frm_buf.fb_addr[0].va,
> -			(u64)frm_buf.fb_addr[0].dma_addr,
> +			&frm_buf.fb_addr[0].dma_addr,
>  			frm_buf.fb_addr[0].size,
>  			frm_buf.fb_addr[1].va,
> -			(u64)frm_buf.fb_addr[1].dma_addr,
> +			&frm_buf.fb_addr[1].dma_addr,
>  			frm_buf.fb_addr[1].size,
>  			frm_buf.fb_addr[2].va,
> -			(u64)frm_buf.fb_addr[2].dma_addr,
> +			&frm_buf.fb_addr[2].dma_addr,
>  			frm_buf.fb_addr[2].size);
This change will make debug message dump address of dma_addr field but
not the value of the dma_addr we want.
How about change it from
PA=%llx -> PA=%u
(u64)frm_buf.fb_addr[0].dma_addr -> (u32)frm_buf.fb_addr[0].dma_addr,

>  
>  	ret = venc_if_encode(ctx, VENC_START_OPT_ENCODE_FRAME,
> diff --git a/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c b/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
> index f4e18bb44cb9..9a600525b3c1 100644
> --- a/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
> +++ b/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
> @@ -295,9 +295,9 @@ static int h264_enc_alloc_work_buf(struct venc_h264_inst *inst)
>  		wb[i].iova = inst->work_bufs[i].dma_addr;
>  
>  		mtk_vcodec_debug(inst,
> -				 "work_buf[%d] va=0x%p iova=0x%p size=%zu",
> +				 "work_buf[%d] va=0x%p iova=%pad size=%zu",
>  				 i, inst->work_bufs[i].va,
> -				 (void *)inst->work_bufs[i].dma_addr,
> +				 &inst->work_bufs[i].dma_addr,
>  				 inst->work_bufs[i].size);
>  	}
>  
Same as above.

best regards,
Tiffany

> diff --git a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
> index 431ae706a427..5b35aa1900d7 100644
> --- a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
> +++ b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
> @@ -210,9 +210,9 @@ static int vp8_enc_alloc_work_buf(struct venc_vp8_inst *inst)
>  		wb[i].iova = inst->work_bufs[i].dma_addr;
>  
>  		mtk_vcodec_debug(inst,
> -				 "work_bufs[%d] va=0x%p,iova=0x%p,size=%zu",
> +				 "work_bufs[%d] va=0x%p,iova=%pad,size=%zu",
>  				 i, inst->work_bufs[i].va,
> -				 (void *)inst->work_bufs[i].dma_addr,
> +				 &inst->work_bufs[i].dma_addr,
>  				 inst->work_bufs[i].size);
>  	}
>  
> diff --git a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
> index b92c6d2a892d..8907b02729fa 100644
> --- a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
> +++ b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
> @@ -37,7 +37,7 @@ static void handle_enc_encode_msg(struct venc_vpu_inst *vpu, void *data)
>  static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv)
>  {
>  	struct venc_vpu_ipi_msg_common *msg = data;
> -	struct venc_vpu_inst *vpu = (struct venc_vpu_inst *)msg->venc_inst;
> +	struct venc_vpu_inst *vpu = (struct venc_vpu_inst *)(uintptr_t)msg->venc_inst;
>  
>  	mtk_vcodec_debug(vpu, "msg_id %x inst %p status %d",
>  			 msg->msg_id, vpu, msg->status);
> @@ -112,7 +112,7 @@ int vpu_enc_init(struct venc_vpu_inst *vpu)
>  
>  	memset(&out, 0, sizeof(out));
>  	out.msg_id = AP_IPIMSG_ENC_INIT;
> -	out.venc_inst = (unsigned long)vpu;
> +	out.venc_inst = (uintptr_t)vpu;
>  	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
>  		mtk_vcodec_err(vpu, "AP_IPIMSG_ENC_INIT fail");
>  		return -EINVAL;