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media: go7007: remove redundant initialization
[ Upstream commit6f5885a775
] In go7007_alloc() kzalloc() is used for struct go7007 allocation. It means that there is no need in zeroing any members, because kzalloc will take care of it. Removing these reduntant initialization steps increases execution speed a lot: Before: + 86.802 us | go7007_alloc(); After: + 29.595 us | go7007_alloc(); Fixes:866b8695d6
("Staging: add the go7007 video driver") Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
8101492879
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1 changed files with 0 additions and 26 deletions
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@ -691,49 +691,23 @@ struct go7007 *go7007_alloc(const struct go7007_board_info *board,
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struct device *dev)
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{
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struct go7007 *go;
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int i;
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go = kzalloc(sizeof(struct go7007), GFP_KERNEL);
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if (go == NULL)
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return NULL;
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go->dev = dev;
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go->board_info = board;
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go->board_id = 0;
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go->tuner_type = -1;
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go->channel_number = 0;
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go->name[0] = 0;
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mutex_init(&go->hw_lock);
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init_waitqueue_head(&go->frame_waitq);
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spin_lock_init(&go->spinlock);
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go->status = STATUS_INIT;
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memset(&go->i2c_adapter, 0, sizeof(go->i2c_adapter));
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go->i2c_adapter_online = 0;
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go->interrupt_available = 0;
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init_waitqueue_head(&go->interrupt_waitq);
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go->input = 0;
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go7007_update_board(go);
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go->encoder_h_halve = 0;
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go->encoder_v_halve = 0;
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go->encoder_subsample = 0;
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go->format = V4L2_PIX_FMT_MJPEG;
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go->bitrate = 1500000;
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go->fps_scale = 1;
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go->pali = 0;
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go->aspect_ratio = GO7007_RATIO_1_1;
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go->gop_size = 0;
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go->ipb = 0;
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go->closed_gop = 0;
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go->repeat_seqhead = 0;
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go->seq_header_enable = 0;
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go->gop_header_enable = 0;
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go->dvd_mode = 0;
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go->interlace_coding = 0;
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for (i = 0; i < 4; ++i)
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go->modet[i].enable = 0;
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for (i = 0; i < 1624; ++i)
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go->modet_map[i] = 0;
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go->audio_deliver = NULL;
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go->audio_enabled = 0;
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return go;
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}
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