linux-kernel - block/bfq-cgroup.c:299:1: warning: the frame size of 1456 bytes is larger than 1024 bytes

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Message-ID: <201709181003.X6bbIx3y%fengguang.wu@intel.com>
Date:   Mon, 18 Sep 2017 10:54:05 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Kees Cook <keescook@...omium.org>
Subject: block/bfq-cgroup.c:299:1: warning: the frame size of 1456 bytes is
 larger than 1024 bytes

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0666f560b71b899cd11a7caf39fd45129e9030fd
commit: f7dd2507893cc3425d3ffc2369559619960befb0 gcc-plugins: structleak: add option to init all vars used as byref args
date:   6 weeks ago
config: i386-randconfig-x013-09180846 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout f7dd2507893cc3425d3ffc2369559619960befb0
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   block/bfq-cgroup.c: In function 'bfqg_stats_add_aux':
>> block/bfq-cgroup.c:299:1: warning: the frame size of 1456 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^

vim +299 block/bfq-cgroup.c

ea25da48 Paolo Valente 2017-04-19  280  
ea25da48 Paolo Valente 2017-04-19  281  /* @to += @from */
ea25da48 Paolo Valente 2017-04-19  282  static void bfqg_stats_add_aux(struct bfqg_stats *to, struct bfqg_stats *from)
ea25da48 Paolo Valente 2017-04-19  283  {
ea25da48 Paolo Valente 2017-04-19  284  	if (!to || !from)
ea25da48 Paolo Valente 2017-04-19  285  		return;
ea25da48 Paolo Valente 2017-04-19  286  
ea25da48 Paolo Valente 2017-04-19  287  	/* queued stats shouldn't be cleared */
ea25da48 Paolo Valente 2017-04-19  288  	blkg_rwstat_add_aux(&to->merged, &from->merged);
ea25da48 Paolo Valente 2017-04-19  289  	blkg_rwstat_add_aux(&to->service_time, &from->service_time);
ea25da48 Paolo Valente 2017-04-19  290  	blkg_rwstat_add_aux(&to->wait_time, &from->wait_time);
ea25da48 Paolo Valente 2017-04-19  291  	blkg_stat_add_aux(&from->time, &from->time);
ea25da48 Paolo Valente 2017-04-19  292  	blkg_stat_add_aux(&to->avg_queue_size_sum, &from->avg_queue_size_sum);
ea25da48 Paolo Valente 2017-04-19  293  	blkg_stat_add_aux(&to->avg_queue_size_samples,
ea25da48 Paolo Valente 2017-04-19  294  			  &from->avg_queue_size_samples);
ea25da48 Paolo Valente 2017-04-19  295  	blkg_stat_add_aux(&to->dequeue, &from->dequeue);
ea25da48 Paolo Valente 2017-04-19  296  	blkg_stat_add_aux(&to->group_wait_time, &from->group_wait_time);
ea25da48 Paolo Valente 2017-04-19  297  	blkg_stat_add_aux(&to->idle_time, &from->idle_time);
ea25da48 Paolo Valente 2017-04-19  298  	blkg_stat_add_aux(&to->empty_time, &from->empty_time);
ea25da48 Paolo Valente 2017-04-19 @299  }
ea25da48 Paolo Valente 2017-04-19  300  

:::::: The code at line 299 was first introduced by commit
:::::: ea25da48086d3bbebf3a2eeff387ea00ed96f5c4 block, bfq: split bfq-iosched.c into multiple source files

:::::: TO: Paolo Valente <paolo.valente@...aro.org>
:::::: CC: Jens Axboe <axboe@...com>

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