tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   85a2c56cb4454c73f56d3099d96942e7919b292f
commit: 6a6155f664e31c9be43cd690541a9a682ba3dc22 ubsan: introduce 
CONFIG_UBSAN_LOCAL_BOUNDS for Clang
date:   6 weeks ago
config: mips-randconfig-r022-20201127 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
175ebad958a0ebaf6c56c20ab30b9d4347742c29)
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 mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6a6155f664e31c9be43cd690541a9a682ba3dc22
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 6a6155f664e31c9be43cd690541a9a682ba3dc22
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

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

All warnings (new ones prefixed by >>):

>> drivers/media/common/saa7146/saa7146_hlp.c:648:5: warning: stack frame size 
>> of 1088 bytes in function 'saa7146_enable_overlay' [-Wframe-larger-than=]
   int saa7146_enable_overlay(struct saa7146_fh *fh)
       ^
   1 warning generated.

vim +/saa7146_enable_overlay +648 drivers/media/common/saa7146/saa7146_hlp.c

^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
647  
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16 
@648  int saa7146_enable_overlay(struct saa7146_fh *fh)
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
649  {
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
650       struct saa7146_dev *dev = fh->dev;
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
651       struct saa7146_vv *vv = dev->vv_data;
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
652  
5da545ad08a3c6e drivers/media/common/saa7146_hlp.c Hans Verkuil   2012-05-01  
653       saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, 
vv->ov.win.field);
5da545ad08a3c6e drivers/media/common/saa7146_hlp.c Hans Verkuil   2012-05-01  
654       saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, 
vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat);
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
655       saa7146_set_output_format(dev, vv->ov_fmt->trans);
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
656       saa7146_set_clipping_rect(fh);
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
657  
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
658       /* enable video dma1 */
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
659       saa7146_write(dev, MC1, (MASK_06 | MASK_22));
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
660       return 0;
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
661  }
^1da177e4c3f415 drivers/media/common/saa7146_hlp.c Linus Torvalds 2005-04-16  
662  

:::::: The code at line 648 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torva...@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torva...@ppc970.osdl.org>

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

Attachment: .config.gz
Description: application/gzip

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