发件人：Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
发送日期：2020-04-29 22:22:50
收件人：Bernard Zhao <bernard@xxxxxxxx>
抄送人：Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>,Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>,David Airlie <airlied@xxxxxxxx>,Daniel Vetter <daniel@xxxxxxxx>,Matthias Brugger <matthias.bgg@xxxxxxxxx>,DRI Development <dri-devel@xxxxxxxxxxxxxxxxxxxxx>,Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>,"moderated list:ARM/Mediatek SoC support" <linux-mediatek@xxxxxxxxxxxxxxxxxxx>,linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>,opensource.kernel@xxxxxxxx
主题：Re: [PATCH] drm/mediatek: cleanup coding style in mediatek a bit>Hi, Bernard:
>
>Bernard Zhao <bernard@xxxxxxxx> 於 2020年4月27日 週一 下午3:53寫道：
>>
>> This code change is to make code bit more readable.
>> Optimise array size align to HDMI macro define.
>> Add check if len is overange.
>
>One patch should just do one thing, but this do three things.
>So break this into three patches.
>
>Regards,
>Chun-Kuang.
Hi
This optimization is mainly to make the code a bit readable.
These modifications are related, main in several related function calls in the same file.
I was a bit confused that if it is really necessary to change to three separate patch submissions?
Regards
Bernard
>>
>> Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>
>> ---
>> drivers/gpu/drm/mediatek/mtk_hdmi.c | 22 +++++++++++-----------
>> 1 file changed, 11 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> index ff43a3d80410..40fb5154ed5d 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> @@ -311,15 +311,15 @@ static void mtk_hdmi_hw_send_info_frame(struct mtk_hdmi *hdmi, u8 *buffer,
>> u8 checksum;
>> int ctrl_frame_en = 0;
>>
>> - frame_type = *buffer;
>> - buffer += 1;
>> - frame_ver = *buffer;
>> - buffer += 1;
>> - frame_len = *buffer;
>> - buffer += 1;
>> - checksum = *buffer;
>> - buffer += 1;
>> + frame_type = *buffer++;
>> + frame_ver = *buffer++;
>> + frame_len = *buffer++;
>> + checksum = *buffer++;
>> frame_data = buffer;
>> + if ((frame_len + HDMI_INFOFRAME_HEADER_SIZE) > len) {
>> + dev_err(hdmi->dev, "Wrong frame len: %d\n", frame_len;
>> + return;
>> + }
>>
>> dev_dbg(hdmi->dev,
>> "frame_type:0x%x,frame_ver:0x%x,frame_len:0x%x,checksum:0x%x\n",
>> @@ -982,7 +982,7 @@ static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi,
>> struct drm_display_mode *mode)
>> {
>> struct hdmi_avi_infoframe frame;
>> - u8 buffer[17];
>> + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
>> ssize_t err;
>>
>> err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
>> @@ -1008,7 +1008,7 @@ static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi,
>> const char *product)
>> {
>> struct hdmi_spd_infoframe frame;
>> - u8 buffer[29];
>> + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_SPD_INFOFRAME_SIZE];
>> ssize_t err;
>>
>> err = hdmi_spd_infoframe_init(&frame, vendor, product);
>> @@ -1031,7 +1031,7 @@ static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi,
>> static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
>> {
>> struct hdmi_audio_infoframe frame;
>> - u8 buffer[14];
>> + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
>> ssize_t err;
>>
>> err = hdmi_audio_infoframe_init(&frame);
>> --
>> 2.26.2
>>
>>
>> _______________________________________________
>> Linux-mediatek mailing list
>> Linux-mediatek@xxxxxxxxxxxxxxxxxxx
>> http://lists.infradead.org/mailman/listinfo/linux-mediatek
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
