From: Arnd Bergmann Date: Fri, 29 May 2020 20:00:27 +0000 (+0200) Subject: media: staging: media: atomisp: fix stack overflow in init_pipe_defaults() X-Git-Tag: v5.10.7~2096^2~70 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=89f3b3196e7fe63a66296c7ed95b96964963c6ea;p=platform%2Fkernel%2Flinux-rpi.git media: staging: media: atomisp: fix stack overflow in init_pipe_defaults() When building with clang, multiple copies of the structures to be initialized are passed around on the stack and copied locally, using an insane amount of stack space: drivers/staging/media/atomisp/pci/sh_css.c:2371:1: error: stack frame size of 26864 bytes in function 'create_pipe' [-Werror,-Wframe-larger-than=] Use constantly-allocated variables plus an explicit memcpy() to avoid that. Co-authored-by: Mauro Carvalho Chehab Fixes: 6dc9a2568f84 ("media: atomisp: convert default struct values to use compound-literals with designated initializers") Signed-off-by: Arnd Bergmann Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h index d822aa2..96c86f0 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h +++ b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h @@ -122,8 +122,7 @@ struct ia_css_frame_info { struct ia_css_crop_info crop_info; }; -#define IA_CSS_BINARY_DEFAULT_FRAME_INFO \ -(struct ia_css_frame_info) { \ +#define IA_CSS_BINARY_DEFAULT_FRAME_INFO { \ .format = IA_CSS_FRAME_FORMAT_NUM, \ .raw_bayer_order = IA_CSS_BAYER_ORDER_NUM, \ } @@ -185,8 +184,7 @@ struct ia_css_frame { info.format */ }; -#define DEFAULT_FRAME \ -(struct ia_css_frame) { \ +#define DEFAULT_FRAME { \ .info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ .dynamic_queue_id = SH_CSS_INVALID_QUEUE_ID, \ .buf_type = IA_CSS_BUFFER_TYPE_INVALID, \ diff --git a/drivers/staging/media/atomisp/pci/ia_css_pipe.h b/drivers/staging/media/atomisp/pci/ia_css_pipe.h index 9c0c4cc..bb0abf9 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_pipe.h +++ b/drivers/staging/media/atomisp/pci/ia_css_pipe.h @@ -40,8 +40,7 @@ struct ia_css_preview_settings { struct ia_css_pipe *acc_pipe; }; -#define IA_CSS_DEFAULT_PREVIEW_SETTINGS \ -(struct ia_css_preview_settings) { \ +#define IA_CSS_DEFAULT_PREVIEW_SETTINGS { \ .copy_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ .preview_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ .vf_pp_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ @@ -65,8 +64,7 @@ struct ia_css_capture_settings { unsigned int num_yuv_scaler; }; -#define IA_CSS_DEFAULT_CAPTURE_SETTINGS \ -(struct ia_css_capture_settings) { \ +#define IA_CSS_DEFAULT_CAPTURE_SETTINGS { \ .copy_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ .primary_binary = {IA_CSS_BINARY_DEFAULT_SETTINGS}, \ .pre_isp_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ @@ -91,8 +89,7 @@ struct ia_css_video_settings { unsigned int num_yuv_scaler; }; -#define IA_CSS_DEFAULT_VIDEO_SETTINGS \ -(struct ia_css_video_settings) { \ +#define IA_CSS_DEFAULT_VIDEO_SETTINGS { \ .copy_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ .video_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ .vf_pp_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ @@ -108,8 +105,7 @@ struct ia_css_yuvpp_settings { unsigned int num_output; }; -#define IA_CSS_DEFAULT_YUVPP_SETTINGS \ -(struct ia_css_yuvpp_settings) { \ +#define IA_CSS_DEFAULT_YUVPP_SETTINGS { \ .copy_binary = IA_CSS_BINARY_DEFAULT_SETTINGS, \ } @@ -157,8 +153,7 @@ struct ia_css_pipe { unsigned int pipe_num; }; -#define IA_CSS_DEFAULT_PIPE \ -(struct ia_css_pipe) { \ +#define IA_CSS_DEFAULT_PIPE { \ .config = DEFAULT_PIPE_CONFIG, \ .info = DEFAULT_PIPE_INFO, \ .mode = IA_CSS_PIPE_ID_ACC, /* (pipe_id) */ \ diff --git a/drivers/staging/media/atomisp/pci/ia_css_pipe_public.h b/drivers/staging/media/atomisp/pci/ia_css_pipe_public.h index 17b0941..4affd21 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_pipe_public.h +++ b/drivers/staging/media/atomisp/pci/ia_css_pipe_public.h @@ -149,8 +149,7 @@ struct ia_css_pipe_config { /** * Default settings for newly created pipe configurations. */ -#define DEFAULT_PIPE_CONFIG \ -(struct ia_css_pipe_config) { \ +#define DEFAULT_PIPE_CONFIG { \ .mode = IA_CSS_PIPE_MODE_PREVIEW, \ .isp_pipe_version = 1, \ .output_info = {IA_CSS_BINARY_DEFAULT_FRAME_INFO}, \ @@ -203,8 +202,7 @@ struct ia_css_pipe_info { /** * Defaults for ia_css_pipe_info structs. */ -#define DEFAULT_PIPE_INFO \ -(struct ia_css_pipe_info) { \ +#define DEFAULT_PIPE_INFO {\ .output_info = {IA_CSS_BINARY_DEFAULT_FRAME_INFO}, \ .vf_output_info = {IA_CSS_BINARY_DEFAULT_FRAME_INFO}, \ .raw_output_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ diff --git a/drivers/staging/media/atomisp/pci/ia_css_types.h b/drivers/staging/media/atomisp/pci/ia_css_types.h index bac0a41..6e34d40 100644 --- a/drivers/staging/media/atomisp/pci/ia_css_types.h +++ b/drivers/staging/media/atomisp/pci/ia_css_types.h @@ -392,8 +392,7 @@ struct ia_css_grid_info { }; /* defaults for ia_css_grid_info structs */ -#define DEFAULT_GRID_INFO \ -(struct ia_css_grid_info) { \ +#define DEFAULT_GRID_INFO { \ .dvs_grid = DEFAULT_DVS_GRID_INFO, \ .vamem_type = IA_CSS_VAMEM_TYPE_1 \ } @@ -485,8 +484,7 @@ struct ia_css_capture_config { }; /* default settings for ia_css_capture_config structs */ -#define DEFAULT_CAPTURE_CONFIG \ -(struct ia_css_capture_config) { \ +#define DEFAULT_CAPTURE_CONFIG { \ .mode = IA_CSS_CAPTURE_MODE_PRIMARY, \ } diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/sdis/common/ia_css_sdis_common_types.h b/drivers/staging/media/atomisp/pci/isp/kernels/sdis/common/ia_css_sdis_common_types.h index c92f583..c2ec30b 100644 --- a/drivers/staging/media/atomisp/pci/isp/kernels/sdis/common/ia_css_sdis_common_types.h +++ b/drivers/staging/media/atomisp/pci/isp/kernels/sdis/common/ia_css_sdis_common_types.h @@ -197,12 +197,11 @@ struct ia_css_dvs_stat_grid_info { /* DVS statistics generated by accelerator default grid info */ -#define DEFAULT_DVS_GRID_INFO \ -(union ia_css_dvs_grid_u) { \ - .dvs_stat_grid_info = (struct ia_css_dvs_stat_grid_info) { \ +#define DEFAULT_DVS_GRID_INFO { \ + .dvs_stat_grid_info = { \ .fe_roi_cfg = { \ - [1] = (struct dvs_stat_public_dvs_level_fe_roi_cfg) { \ - .x_start = 4 \ + [1] = { \ + .x_start = 4 \ } \ } \ } \ diff --git a/drivers/staging/media/atomisp/pci/runtime/binary/interface/ia_css_binary.h b/drivers/staging/media/atomisp/pci/runtime/binary/interface/ia_css_binary.h index 5605800..b44099d 100644 --- a/drivers/staging/media/atomisp/pci/runtime/binary/interface/ia_css_binary.h +++ b/drivers/staging/media/atomisp/pci/runtime/binary/interface/ia_css_binary.h @@ -144,8 +144,7 @@ struct ia_css_binary { struct ia_css_isp_param_css_segments css_params; }; -#define IA_CSS_BINARY_DEFAULT_SETTINGS \ -(struct ia_css_binary) { \ +#define IA_CSS_BINARY_DEFAULT_SETTINGS { \ .input_format = ATOMISP_INPUT_FORMAT_YUV420_8_LEGACY, \ .in_frame_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ .internal_frame_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO, \ diff --git a/drivers/staging/media/atomisp/pci/runtime/pipeline/interface/ia_css_pipeline.h b/drivers/staging/media/atomisp/pci/runtime/pipeline/interface/ia_css_pipeline.h index 1f4afd1..18a7d18 100644 --- a/drivers/staging/media/atomisp/pci/runtime/pipeline/interface/ia_css_pipeline.h +++ b/drivers/staging/media/atomisp/pci/runtime/pipeline/interface/ia_css_pipeline.h @@ -57,8 +57,7 @@ struct ia_css_pipeline { u32 pipe_qos_config; }; -#define DEFAULT_PIPELINE \ -(struct ia_css_pipeline) { \ +#define DEFAULT_PIPELINE { \ .pipe_id = IA_CSS_PIPE_ID_PREVIEW, \ .in_frame = DEFAULT_FRAME, \ .out_frame = {DEFAULT_FRAME}, \ diff --git a/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c b/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c index 29207fe..4b8e85b 100644 --- a/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c +++ b/drivers/staging/media/atomisp/pci/runtime/pipeline/src/pipeline.c @@ -665,6 +665,8 @@ ERR: return err; } +static const struct ia_css_frame ia_css_default_frame = DEFAULT_FRAME; + static void pipeline_init_defaults( struct ia_css_pipeline *pipeline, enum ia_css_pipe_id pipe_id, @@ -677,10 +679,15 @@ static void pipeline_init_defaults( pipeline->stages = NULL; pipeline->stop_requested = false; pipeline->current_stage = NULL; - pipeline->in_frame = DEFAULT_FRAME; + + memcpy(&pipeline->in_frame, &ia_css_default_frame, + sizeof(ia_css_default_frame)); + for (i = 0; i < IA_CSS_PIPE_MAX_OUTPUT_STAGE; i++) { - pipeline->out_frame[i] = DEFAULT_FRAME; - pipeline->vf_frame[i] = DEFAULT_FRAME; + memcpy(&pipeline->out_frame[i], &ia_css_default_frame, + sizeof(ia_css_default_frame)); + memcpy(&pipeline->vf_frame[i], &ia_css_default_frame, + sizeof(ia_css_default_frame)); } pipeline->num_execs = -1; pipeline->acquire_isp_each_stage = true; diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c index c2e8d7e..5fd1daa 100644 --- a/drivers/staging/media/atomisp/pci/sh_css.c +++ b/drivers/staging/media/atomisp/pci/sh_css.c @@ -2233,10 +2233,17 @@ ERR: return err; } +static const struct ia_css_pipe default_pipe = IA_CSS_DEFAULT_PIPE; +static const struct ia_css_preview_settings preview = IA_CSS_DEFAULT_PREVIEW_SETTINGS; +static const struct ia_css_capture_settings capture = IA_CSS_DEFAULT_CAPTURE_SETTINGS; +static const struct ia_css_video_settings video = IA_CSS_DEFAULT_VIDEO_SETTINGS; +static const struct ia_css_yuvpp_settings yuvpp = IA_CSS_DEFAULT_YUVPP_SETTINGS; + static int init_pipe_defaults(enum ia_css_pipe_mode mode, struct ia_css_pipe *pipe, bool copy_pipe) { + if (!pipe) { IA_CSS_ERROR("NULL pipe parameter"); @@ -2244,14 +2251,14 @@ init_pipe_defaults(enum ia_css_pipe_mode mode, } /* Initialize pipe to pre-defined defaults */ - *pipe = IA_CSS_DEFAULT_PIPE; + memcpy(pipe, &default_pipe, sizeof(default_pipe)); /* TODO: JB should not be needed, but temporary backward reference */ switch (mode) { case IA_CSS_PIPE_MODE_PREVIEW: pipe->mode = IA_CSS_PIPE_ID_PREVIEW; - pipe->pipe_settings.preview = IA_CSS_DEFAULT_PREVIEW_SETTINGS; + memcpy(&pipe->pipe_settings.preview, &preview, sizeof(preview)); break; case IA_CSS_PIPE_MODE_CAPTURE: if (copy_pipe) { @@ -2259,11 +2266,11 @@ init_pipe_defaults(enum ia_css_pipe_mode mode, } else { pipe->mode = IA_CSS_PIPE_ID_CAPTURE; } - pipe->pipe_settings.capture = IA_CSS_DEFAULT_CAPTURE_SETTINGS; + memcpy(&pipe->pipe_settings.capture, &capture, sizeof(capture)); break; case IA_CSS_PIPE_MODE_VIDEO: pipe->mode = IA_CSS_PIPE_ID_VIDEO; - pipe->pipe_settings.video = IA_CSS_DEFAULT_VIDEO_SETTINGS; + memcpy(&pipe->pipe_settings.video, &video, sizeof(video)); break; case IA_CSS_PIPE_MODE_ACC: pipe->mode = IA_CSS_PIPE_ID_ACC; @@ -2273,7 +2280,7 @@ init_pipe_defaults(enum ia_css_pipe_mode mode, break; case IA_CSS_PIPE_MODE_YUVPP: pipe->mode = IA_CSS_PIPE_ID_YUVPP; - pipe->pipe_settings.yuvpp = IA_CSS_DEFAULT_YUVPP_SETTINGS; + memcpy(&pipe->pipe_settings.yuvpp, &yuvpp, sizeof(yuvpp)); break; default: return -EINVAL; @@ -8771,12 +8778,16 @@ sh_css_init_host_sp_control_vars(void) { } /* - * create the internal structures and fill in the configuration data - */ + * create the internal structures and fill in the configuration data + */ + +static const struct +ia_css_pipe_config ia_css_pipe_default_config = DEFAULT_PIPE_CONFIG; + void ia_css_pipe_config_defaults(struct ia_css_pipe_config *pipe_config) { ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_pipe_config_defaults()\n"); - *pipe_config = DEFAULT_PIPE_CONFIG; + memcpy(pipe_config, &ia_css_pipe_default_config, sizeof(*pipe_config)); } void