linux-kernel - drivers/isdn/mISDN/dsp_blowfish.c:662:1: warning: the frame size of 1632 bytes is larger than 1024 bytes

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Date:	Sun, 31 Jan 2016 07:31:51 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	Andrey Ryabinin <aryabinin@...tuozzo.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>
Subject: drivers/isdn/mISDN/dsp_blowfish.c:662:1: warning: the frame size of
 1632 bytes is larger than 1024 bytes

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ad0b40fa944628d6f30b40266a599b285d70a266
commit: c6d308534aef6c99904bf5862066360ae067abc4 UBSAN: run-time undefined behavior sanity checker
date:   10 days ago
config: i386-randconfig-x0-01310609 (attached as .config)
reproduce:
        git checkout c6d308534aef6c99904bf5862066360ae067abc4
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   drivers/isdn/mISDN/dsp_blowfish.c: In function 'dsp_bf_init':
>> drivers/isdn/mISDN/dsp_blowfish.c:662:1: warning: the frame size of 1632 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^

vim +662 drivers/isdn/mISDN/dsp_blowfish.c

960366cf Karsten Keil 2008-07-27  646  		encrypt_block(P, S, data, data);
960366cf Karsten Keil 2008-07-27  647  
960366cf Karsten Keil 2008-07-27  648  		P[i] = data[0];
960366cf Karsten Keil 2008-07-27  649  		P[i + 1] = data[1];
960366cf Karsten Keil 2008-07-27  650  	}
960366cf Karsten Keil 2008-07-27  651  
960366cf Karsten Keil 2008-07-27  652  	for (i = 0; i < 4; i++) {
960366cf Karsten Keil 2008-07-27  653  		for (j = 0, count = i * 256; j < 256; j += 2, count += 2) {
960366cf Karsten Keil 2008-07-27  654  			encrypt_block(P, S, data, data);
960366cf Karsten Keil 2008-07-27  655  
960366cf Karsten Keil 2008-07-27  656  			S[count] = data[0];
960366cf Karsten Keil 2008-07-27  657  			S[count + 1] = data[1];
960366cf Karsten Keil 2008-07-27  658  		}
960366cf Karsten Keil 2008-07-27  659  	}
960366cf Karsten Keil 2008-07-27  660  
960366cf Karsten Keil 2008-07-27  661  	return 0;
960366cf Karsten Keil 2008-07-27 @662  }
960366cf Karsten Keil 2008-07-27  663  
960366cf Karsten Keil 2008-07-27  664  
960366cf Karsten Keil 2008-07-27  665  /*
960366cf Karsten Keil 2008-07-27  666   * turn encryption off
960366cf Karsten Keil 2008-07-27  667   */
960366cf Karsten Keil 2008-07-27  668  void
960366cf Karsten Keil 2008-07-27  669  dsp_bf_cleanup(struct dsp *dsp)
960366cf Karsten Keil 2008-07-27  670  {

:::::: The code at line 662 was first introduced by commit
:::::: 960366cf8dbb3359afaca30cf7fdbf69a6d6dda7 Add mISDN DSP

:::::: TO: Karsten Keil <kkeil@...e.de>
:::::: CC: Karsten Keil <kkeil@...e.de>

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Download attachment ".config.gz" of type "application/octet-stream" (33313 bytes)