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Message-ID: <202107040513.sHrWrxpU-lkp@intel.com>
Date:   Sun, 4 Jul 2021 05:38:24 +0800
From:   kernel test robot <lkp@...el.com>
To:     Chris Wilson <chris@...is-wilson.co.uk>
Cc:     clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...el.com>
Subject: drivers/gpu/drm/i915/gt/selftest_execlists.c:167:4: error: format
 string is not a string literal (potentially insecure)

Hi Chris,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   303392fd5c160822bf778270b28ec5ea50cab2b4
commit: 70a2b431c36483c0c06e589e11c59e438cd0ac06 drm/i915/gt: Rename lrc.c to execlists_submission.c
date:   7 months ago
config: x86_64-buildonly-randconfig-r006-20210704 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project cb5de7c813f976dd458bd2a7f40702ba648bf650)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=70a2b431c36483c0c06e589e11c59e438cd0ac06
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 70a2b431c36483c0c06e589e11c59e438cd0ac06
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from drivers/gpu/drm/i915/gt/intel_execlists_submission.c:6116:
>> drivers/gpu/drm/i915/gt/selftest_execlists.c:167:4: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security]
                           GEM_TRACE("spinner failed to start\n");
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/gt/selftest_execlists.c:167:4: note: treat the string as an argument to avoid this
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^
   In file included from drivers/gpu/drm/i915/gt/intel_execlists_submission.c:6116:
   drivers/gpu/drm/i915/gt/selftest_execlists.c:1790:4: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security]
                           GEM_TRACE("lo spinner failed to start\n");
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/gt/selftest_execlists.c:1790:4: note: treat the string as an argument to avoid this
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^
   In file included from drivers/gpu/drm/i915/gt/intel_execlists_submission.c:6116:
   drivers/gpu/drm/i915/gt/selftest_execlists.c:1807:4: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security]
                           GEM_TRACE("hi spinner failed to start\n");
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/gt/selftest_execlists.c:1807:4: note: treat the string as an argument to avoid this
   drivers/gpu/drm/i915/i915_gem.h:69:24: note: expanded from macro 'GEM_TRACE'
   #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
                          ^
   include/linux/kernel.h:724:3: note: expanded from macro 'trace_printk'
                   do_trace_printk(fmt, ##__VA_ARGS__);    \
                   ^
   include/linux/kernel.h:738:30: note: expanded from macro 'do_trace_printk'
                   __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args);   \
                                              ^
   3 errors generated.


vim +167 drivers/gpu/drm/i915/gt/selftest_execlists.c

280e285dc78f73 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2020-02-27  134  
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  135  static int live_sanitycheck(void *arg)
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  136  {
1357fa8136ea03 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-16  137  	struct intel_gt *gt = arg;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  138  	struct intel_engine_cs *engine;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  139  	enum intel_engine_id id;
8d2f6e2f272109 drivers/gpu/drm/i915/selftests/intel_lrc.c Tvrtko Ursulin 2018-11-30  140  	struct igt_spinner spin;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  141  	int err = 0;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  142  
1357fa8136ea03 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-16  143  	if (!HAS_LOGICAL_RING_CONTEXTS(gt->i915))
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  144  		return 0;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  145  
1357fa8136ea03 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-16  146  	if (igt_spinner_init(&spin, gt))
2af402982ab382 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-04  147  		return -ENOMEM;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  148  
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  149  	for_each_engine(engine, gt, id) {
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  150  		struct intel_context *ce;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  151  		struct i915_request *rq;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  152  
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  153  		ce = intel_context_create(engine);
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  154  		if (IS_ERR(ce)) {
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  155  			err = PTR_ERR(ce);
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  156  			break;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  157  		}
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  158  
f277bc0c98a407 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-07-31  159  		rq = igt_spinner_create_request(&spin, ce, MI_NOOP);
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  160  		if (IS_ERR(rq)) {
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  161  			err = PTR_ERR(rq);
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  162  			goto out_ctx;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  163  		}
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  164  
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  165  		i915_request_add(rq);
8d2f6e2f272109 drivers/gpu/drm/i915/selftests/intel_lrc.c Tvrtko Ursulin 2018-11-30  166  		if (!igt_wait_for_spinner(&spin, rq)) {
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04 @167  			GEM_TRACE("spinner failed to start\n");
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  168  			GEM_TRACE_DUMP();
1357fa8136ea03 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-16  169  			intel_gt_set_wedged(gt);
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  170  			err = -EIO;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  171  			goto out_ctx;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  172  		}
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  173  
8d2f6e2f272109 drivers/gpu/drm/i915/selftests/intel_lrc.c Tvrtko Ursulin 2018-11-30  174  		igt_spinner_end(&spin);
1357fa8136ea03 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-10-16  175  		if (igt_flush_test(gt->i915)) {
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  176  			err = -EIO;
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  177  			goto out_ctx;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  178  		}
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  179  
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  180  out_ctx:
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  181  		intel_context_put(ce);
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  182  		if (err)
e6ba76480299a0 drivers/gpu/drm/i915/gt/selftest_lrc.c     Chris Wilson   2019-12-21  183  			break;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  184  	}
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  185  
8d2f6e2f272109 drivers/gpu/drm/i915/selftests/intel_lrc.c Tvrtko Ursulin 2018-11-30  186  	igt_spinner_fini(&spin);
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  187  	return err;
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  188  }
2c66555ec19235 drivers/gpu/drm/i915/selftests/intel_lrc.c Chris Wilson   2018-04-04  189  

:::::: The code at line 167 was first introduced by commit
:::::: 2c66555ec19235efd689741c44bbeb893aa8e7de drm/i915/selftests: Add basic sanitychecks for execlists

:::::: TO: Chris Wilson <chris@...is-wilson.co.uk>
:::::: CC: Chris Wilson <chris@...is-wilson.co.uk>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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