CC: [email protected]
In-Reply-To: <[email protected]>
References: <[email protected]>
TO: Colin King <[email protected]>
CC: Jani Nikula <[email protected]>, Joonas Lahtinen 
<[email protected]>, Rodrigo Vivi <[email protected]>, David 
Airlie <[email protected]>, Daniel Vetter <[email protected]>, Chris Wilson 
<[email protected]>, [email protected], 
[email protected], [email protected], 
[email protected], [email protected], 
[email protected]

Hi Colin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on v5.6 next-20200410]
[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/Colin-King/drm-i915-gt-remove-redundant-assignment-to-variable-x/20200411-032731
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
:::::: branch date: 10 hours ago
:::::: commit date: 10 hours ago

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

smatch warnings:
drivers/gpu/drm/i915/gt/intel_engine_cs.c:1210 print_request() error: 
uninitialized symbol 'x'.

# 
https://github.com/0day-ci/linux/commit/6ee08d455bba0066e8f5f276dcd43d9e3e594dc5
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 6ee08d455bba0066e8f5f276dcd43d9e3e594dc5
vim +/x +1210 drivers/gpu/drm/i915/gt/intel_engine_cs.c

b7268c5eed0ab4 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-04-18  1201  
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1202  static void print_request(struct drm_printer *m,
e61e0f51ba7974 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-02-21  1203                          struct i915_request *rq,
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1204                          const char *prefix)
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1205  {
ab2681512b4c10 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-03-14  1206        const char *name = 
rq->fence.ops->get_timeline_name(&rq->fence);
96d4f03c20d04c drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-05-17  1207        char buf[80] = "";
6ee08d455bba00 drivers/gpu/drm/i915/gt/intel_engine_cs.c Colin Ian King 
2020-04-10  1208        int x;
247870ac8ea729 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-04-24  1209  
247870ac8ea729 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-04-24 @1210        x = print_sched_attr(rq->i915, &rq->sched.attr, buf, x, 
sizeof(buf));
ab2681512b4c10 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-03-14  1211  
b300fde8965fdd drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-02-26  1212        drm_printf(m, "%s %llx:%llx%s%s %s @ %dms: %s\n",
b7268c5eed0ab4 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-04-18  1213                   prefix,
b300fde8965fdd drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-02-26  1214                   rq->fence.context, rq->fence.seqno,
8547444137ec61 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-01-29  1215                   i915_request_completed(rq) ? "!" :
8547444137ec61 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-01-29  1216                   i915_request_started(rq) ? "*" :
8547444137ec61 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-01-29  1217                   "",
8c334f24e3b448 drivers/gpu/drm/i915/gt/intel_engine_cs.c Chris Wilson   
2019-05-01  1218                   test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
8c334f24e3b448 drivers/gpu/drm/i915/gt/intel_engine_cs.c Chris Wilson   
2019-05-01  1219                            &rq->fence.flags) ? "+" :
52c0fdb25c7c91 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2019-01-29  1220                   test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
8c334f24e3b448 drivers/gpu/drm/i915/gt/intel_engine_cs.c Chris Wilson   
2019-05-01  1221                            &rq->fence.flags) ? "-" :
8c334f24e3b448 drivers/gpu/drm/i915/gt/intel_engine_cs.c Chris Wilson   
2019-05-01  1222                   "",
247870ac8ea729 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-04-24  1223                   buf,
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1224                   jiffies_to_msecs(jiffies - 
rq->emitted_jiffies),
ab2681512b4c10 drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2018-03-14  1225                   name);
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1226  }
f636edb214a5ff drivers/gpu/drm/i915/intel_engine_cs.c    Chris Wilson   
2017-10-09  1227  

:::::: The code at line 1210 was first introduced by commit
:::::: 247870ac8ea72916cd26f89e9bc211b97141ecd5 drm/i915: Build request info on 
stack before printk

:::::: TO: Chris Wilson <[email protected]>
:::::: CC: Chris Wilson <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
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