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Message-ID: <201911031510.4s2wqcIN%lkp@intel.com>
Date: Sun, 3 Nov 2019 15:51:00 +0800
From: kbuild test robot <lkp@...el.com>
To: allen <allen.chen@....com.tw>
Cc: kbuild-all@...ts.01.org, Allen Chen <allen.chen@....com.tw>,
Pi-Hsun Shih <pihsun@...omium.org>,
Jau-Chih Tseng <Jau-Chih.Tseng@....com.tw>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <maxime.ripard@...tlin.com>,
Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
"open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/edid: fixup EDID 1.3 and 1.4 judge reduced-blanking
timings logic
Hi allen,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.4-rc5 next-20191031]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/allen/drm-edid-fixup-EDID-1-3-and-1-4-judge-reduced-blanking-timings-logic/20191102-200357
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 1204c70d9dcba31164f78ad5d8c88c42335d51f8
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
smatch warnings:
drivers/gpu/drm/drm_edid.c:2042 drm_monitor_supports_rb() warn: always true condition '(closure.support_rb >= 0) => (0-255 >= 0)'
vim +2042 drivers/gpu/drm/drm_edid.c
2030
2031 /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
2032 static bool
2033 drm_monitor_supports_rb(struct edid *edid)
2034 {
2035 struct edid_support_rb_closure closure = {
2036 .edid = edid,
2037 .support_rb = -1,
2038 };
2039
2040 if (edid->revision >= 4) {
2041 drm_for_each_detailed_block((u8 *)edid, is_rb, &closure);
> 2042 if (closure.support_rb >= 0)
2043 return closure.support_rb;
2044 }
2045
2046 return true;
2047 }
2048
---
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