Hi, Bernard:
Bernard <[email protected]> 於 2020年4月30日 週四 下午2:32寫道：
>
>
>
> 发件人：Chun-Kuang Hu <[email protected]>
> 发送日期：2020-04-29 22:22:50
> 收件人：Bernard Zhao <[email protected]>
> 抄送人：Chun-Kuang Hu <[email protected]>,Philipp Zabel
> <[email protected]>,David Airlie <[email protected]>,Daniel Vetter
> <[email protected]>,Matthias Brugger <[email protected]>,DRI Development
> <[email protected]>,Linux ARM
> <[email protected]>,"moderated list:ARM/Mediatek SoC
> support" <[email protected]>,linux-kernel
> <[email protected]>,[email protected]
> 主题：Re: [PATCH] drm/mediatek: cleanup coding style in mediatek a bit>Hi,
> Bernard:
> >
> >Bernard Zhao <[email protected]> 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 <[email protected]>
> >> ---
> >> 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++;
This part looks like cleanup, so keep in this patch.
> >> frame_data = buffer;
> >> + if ((frame_len + HDMI_INFOFRAME_HEADER_SIZE) > len) {
> >> + dev_err(hdmi->dev, "Wrong frame len: %d\n", frame_len;
> >> + return;
This is error checking, not cleanup the coding style, so move this to
another patch.
> >> + }
> >>
> >> 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];
This is to symbolize the number, symbolization is more than cleanup.
Regards,
Chun-Kuang.
> >> 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
> >> [email protected]
> >> http://lists.infradead.org/mailman/listinfo/linux-mediatek
>
>
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