Level is unsigned, so not less than 0 (line 230).
julia
---------- Forwarded message ----------
Date: Tue, 20 Mar 2018 16:39:16 +0800
From: kbuild test robot <fengguang.wu@xxxxxxxxx>
To: kbuild@xxxxxx
Cc: Julia Lawall <julia.lawall@xxxxxxx>
Subject: [drm-intel:drm-intel-next-queued 13/14]
drivers/gpu/drm/i915/intel_guc.c:230:12-17: WARNING: Unsigned expression
compared with zero: level < 0
CC: kbuild-all@xxxxxx
CC: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
CC: dri-devel@xxxxxxxxxxxxxxxxxxxxx
TO: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
CC: Matthew Auld <matthew.auld@xxxxxxxxx>
tree: git://anongit.freedesktop.org/drm-intel drm-intel-next-queued
head: 873d66fb9b1d4f4cd441f84068abb5457c60f127
commit: 46b863325c2f58b564463c4d6e66ee0d4f2f3244 [13/14] drm/i915: Prefer memset64() when filling the iomap
:::::: branch date: 16 hours ago
:::::: commit date: 18 hours ago
>> drivers/gpu/drm/i915/intel_guc.c:230:12-17: WARNING: Unsigned expression compared with zero: level < 0
git remote add drm-intel git://anongit.freedesktop.org/drm-intel
git remote update drm-intel
git checkout 46b863325c2f58b564463c4d6e66ee0d4f2f3244
vim +230 drivers/gpu/drm/i915/intel_guc.c
5d53be45 Michal Wajdeczko 2017-10-16 224
cb5d64e9 Michał Winiarski 2018-03-19 225 static u32 get_log_control_flags(void)
0ed87953 Michal Wajdeczko 2018-01-11 226 {
cb5d64e9 Michał Winiarski 2018-03-19 227 u32 level = i915_modparams.guc_log_level;
cb5d64e9 Michał Winiarski 2018-03-19 228 u32 flags = 0;
0ed87953 Michal Wajdeczko 2018-01-11 229
cb5d64e9 Michał Winiarski 2018-03-19 @230 GEM_BUG_ON(level < 0);
cb5d64e9 Michał Winiarski 2018-03-19 231
cb5d64e9 Michał Winiarski 2018-03-19 232 if (!GUC_LOG_LEVEL_TO_ENABLED(level))
cb5d64e9 Michał Winiarski 2018-03-19 233 flags |= GUC_LOG_DEFAULT_DISABLED;
cb5d64e9 Michał Winiarski 2018-03-19 234
cb5d64e9 Michał Winiarski 2018-03-19 235 if (!GUC_LOG_LEVEL_TO_VERBOSE(level))
cb5d64e9 Michał Winiarski 2018-03-19 236 flags |= GUC_LOG_DISABLED;
cb5d64e9 Michał Winiarski 2018-03-19 237 else
cb5d64e9 Michał Winiarski 2018-03-19 238 flags |= GUC_LOG_LEVEL_TO_VERBOSITY(level) <<
cb5d64e9 Michał Winiarski 2018-03-19 239 GUC_LOG_VERBOSITY_SHIFT;
0ed87953 Michal Wajdeczko 2018-01-11 240
cb5d64e9 Michał Winiarski 2018-03-19 241 return flags;
0ed87953 Michal Wajdeczko 2018-01-11 242 }
0ed87953 Michal Wajdeczko 2018-01-11 243
:::::: The code at line 230 was first introduced by commit
:::::: cb5d64e9f13e0dd817c3ae2dbe73c3b8c6c13f95 drm/i915/guc: Allow user to control default GuC logging
:::::: TO: Michał Winiarski <michal.winiarski@xxxxxxxxx>
:::::: CC: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
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