drivers/media/test-drivers/vidtv/vidtv_mux.c:379:13: warning: stack frame size of 2848 bytes in function 'vidtv_mux_tick'

[kernel test robot]

Hi Daniel,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   9cdbf6467424045617cd6e79dcaad06bb8efa31c
commit: f90cf6079bf67988f8b1ad1ade70fc89d0080905 media: vidtv: add a bridge 
driver
date:   7 months ago
config: powerpc-randconfig-r011-20210417 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
f549176ad976caa3e19edd036df9a7e12770af7c)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f90cf6079bf67988f8b1ad1ade70fc89d0080905
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout f90cf6079bf67988f8b1ad1ade70fc89d0080905
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 
ARCH=powerpc 

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/test-drivers/vidtv/vidtv_mux.c:379:13: warning: stack frame 
>> size of 2848 bytes in function 'vidtv_mux_tick' [-Wframe-larger-than=]
   static void vidtv_mux_tick(struct work_struct *work)
               ^
   1 warning generated.


vim +/vidtv_mux_tick +379 drivers/media/test-drivers/vidtv/vidtv_mux.c

   378  
 > 379  static void vidtv_mux_tick(struct work_struct *work)
   380  {
   381          struct vidtv_mux *m = container_of(work,
   382                                             struct vidtv_mux,
   383                                             mpeg_thread);
   384          u32 nbytes;
   385          u32 npkts;
   386  
   387          while (m->streaming) {
   388                  nbytes = 0;
   389  
   390                  vidtv_mux_update_clk(m);
   391  
   392                  if (vidtv_mux_should_push_pcr(m))
   393                          nbytes += vidtv_mux_push_pcr(m);
   394  
   395                  if (vidtv_mux_should_push_si(m))
   396                          nbytes += vidtv_mux_push_si(m);
   397  
   398                  nbytes += vidtv_mux_poll_encoders(m);
   399                  nbytes += vidtv_mux_check_mux_rate(m);
   400  
   401                  npkts = nbytes / TS_PACKET_LEN;
   402  
   403                  /* if the buffer is not aligned there is a bug 
somewhere */
   404                  if (nbytes % TS_PACKET_LEN)
   405                          pr_err_ratelimited("Misaligned buffer\n");
   406  
   407                  if (m->on_new_packets_available_cb)
   408                          m->on_new_packets_available_cb(m->priv,
   409                                                         m->mux_buf,
   410                                                         npkts);
   411  
   412                  vidtv_mux_clear(m);
   413  
   414                  usleep_range(VIDTV_SLEEP_USECS, VIDTV_MAX_SLEEP_USECS);
   415          }
   416  }
   417  

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

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