[media] mtk-mdp: fix compilation warnings if !DEBUG
The mtk_mdp_dbg() is empty if !DEBUG. This causes the following warnings: drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c: In function ‘mtk_mdp_try_fmt_mplane’: drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c:231:52: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] org_w, org_h, pix_mp->width, pix_mp->height); ^ drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c: In function ‘mtk_mdp_m2m_start_streaming’: drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c:414:21: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ctx->id, ret); ^ With could actually make the code to do something wrong. So, add an empty block to make it be parsed ok. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -250,7 +250,7 @@ extern int mtk_mdp_dbg_level;
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#else
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#define mtk_mdp_dbg(level, fmt, args...)
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#define mtk_mdp_dbg(level, fmt, args...) {}
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#define mtk_mdp_err(fmt, args...)
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#define mtk_mdp_dbg_enter()
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#define mtk_mdp_dbg_leave()
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