CC: [email protected]
In-Reply-To: <[email protected]>
References: <[email protected]>
TO: Viktor Prutyanov <[email protected]>
TO: [email protected]
TO: [email protected]
TO: [email protected]
TO: [email protected]
TO: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]

Hi Viktor,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v5.14-rc1 next-20210712]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/Viktor-Prutyanov/media-rc-add-support-for-Amlogic-Meson-IR-blaster/20210713-041906
base:   git://linuxtv.org/media_tree.git master
:::::: branch date: 13 hours ago
:::::: commit date: 13 hours ago
config: sh-randconfig-s031-20210713 (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # 
https://github.com/0day-ci/linux/commit/f74878fc5e09af1a0ea3a7e0c37badd2d3d0963f
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Viktor-Prutyanov/media-rc-add-support-for-Amlogic-Meson-IR-blaster/20210713-041906
        git checkout f74878fc5e09af1a0ea3a7e0c37badd2d3d0963f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash 
drivers/media/rc/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


sparse warnings: (new ones prefixed by >>)
>> drivers/media/rc/meson-ir-tx.c:235:12: sparse: sparse: context imbalance in 
>> 'meson_irtx_transmit' - different lock contexts for basic block

vim +/meson_irtx_transmit +235 drivers/media/rc/meson-ir-tx.c

f74878fc5e09af1a Viktor Prutyanov 2021-07-12  234  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12 @235  static int 
meson_irtx_transmit(struct rc_dev *rc, unsigned int *buf,
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  236                              
unsigned int len)
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  237  {
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  238       unsigned long flags;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  239       struct meson_irtx *ir = 
rc->priv;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  240  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  241       if 
(!meson_irtx_check_buf(ir, buf, len))
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  242               return -EINVAL;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  243  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  244       
spin_lock_irqsave(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  245       ir->buf = 
kmalloc_array(len, sizeof(u32), GFP_KERNEL);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  246       if (!ir->buf)
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  247               return -ENOMEM;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  248  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  249       ir->buf_len = len;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  250       ir->buf_head = 0;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  251       meson_irtx_fill_buf(ir, 
buf);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  252       
spin_unlock_irqrestore(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  253  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  254       
reinit_completion(&ir->completion);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  255       dev_dbg(ir->dev, "tx 
started, buffer length = %u\n", ir->buf_len);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  256  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  257       
spin_lock_irqsave(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  258       
meson_irtx_send_buffer(ir);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  259       
spin_unlock_irqrestore(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  260  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  261       
wait_for_completion_interruptible(&ir->completion);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  262       dev_dbg(ir->dev, "tx 
completed\n");
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  263  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  264       
spin_lock_irqsave(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  265       kfree(ir->buf);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  266       ir->buf = NULL;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  267       ir->buf_len = 0;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  268       
spin_unlock_irqrestore(&ir->lock, flags);
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  269  
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  270       return len;
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  271  }
f74878fc5e09af1a Viktor Prutyanov 2021-07-12  272  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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