[thesofproject:topic/sof-dev 10/13] sound/soc/sof/sof-client-fw-gdb.c:365:22: sparse: sparse: invalid assignment: |=

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/thesofproject/linux topic/sof-dev
head:   f6602b847ffbd29afc5f74bd2ab40aa002893b03
commit: 7a79ba9a0865c9efc5f5db3f5182ac445db67954 [10/13] ASoC: SOF: sof-client: expose Zephyr GDB stub
config: microblaze-randconfig-r111-20260614 (https://download.01.org/0day-ci/archive/20260614/202606140919.YdfuclV9-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260614/202606140919.YdfuclV9-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606140919.YdfuclV9-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> sound/soc/sof/sof-client-fw-gdb.c:365:22: sparse: sparse: invalid assignment: |=
   sound/soc/sof/sof-client-fw-gdb.c:365:22: sparse:    left side has type restricted __poll_t
   sound/soc/sof/sof-client-fw-gdb.c:365:22: sparse:    right side has type int
   sound/soc/sof/sof-client-fw-gdb.c:369:22: sparse: sparse: invalid assignment: |=
   sound/soc/sof/sof-client-fw-gdb.c:369:22: sparse:    left side has type restricted __poll_t
   sound/soc/sof/sof-client-fw-gdb.c:369:22: sparse:    right side has type int

vim +365 sound/soc/sof/sof-client-fw-gdb.c

   351	
   352	static __poll_t sof_fw_gdb_dfs_poll(struct file *file, struct poll_table_struct *wait)
   353	{
   354		struct sof_client_dev *cdev = file->private_data;
   355		struct sof_fw_gdb_priv *priv = cdev->data;
   356		__poll_t mask = 0;
   357	
   358		mutex_lock(&priv->mutex);
   359		u32 head, tail;
   360	
   361		poll_wait(file, &priv->rxq, wait);
   362		poll_wait(file, &priv->txq, wait);
   363	
   364		if (sof_fw_gdb_get_rx_ptrs(cdev, &head, &tail) >= 0 && tail != head)
 > 365			mask |= POLLIN | POLLRDNORM;
   366		/* readable */
   367	
   368		if (sof_fw_gdb_get_tx_ptrs(cdev, &head, &tail) >= 0 && (head + 1) % RING_SIZE != tail)
   369			mask |= POLLOUT | POLLWRNORM;
   370		/* writable */
   371	
   372		mutex_unlock(&priv->mutex);
   373	
   374		return mask;
   375	}
   376	

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