linux-kernel - Re: [PATCH v2] remoteproc: Add a new remoteproc state RPROC

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Message-ID: <202410161104.5ZIbsMLV-lkp@intel.com>
Date: Wed, 16 Oct 2024 11:55:19 +0800
From: kernel test robot <lkp@...el.com>
To: Mukesh Ojha <quic_mojha@...cinc.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-remoteproc@...r.kernel.org,
	linux-kernel@...r.kernel.org, Mukesh Ojha <quic_mojha@...cinc.com>
Subject: Re: [PATCH v2] remoteproc: Add a new remoteproc state RPROC_DEFUNCT

Hi Mukesh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on remoteproc/rproc-next]
[also build test WARNING on linus/master v6.12-rc3 next-20241015]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Mukesh-Ojha/remoteproc-Add-a-new-remoteproc-state-RPROC_DEFUNCT/20241015-043318
base:   https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git rproc-next
patch link:    https://lore.kernel.org/r/20241014203118.1580024-1-quic_mojha%40quicinc.com
patch subject: [PATCH v2] remoteproc: Add a new remoteproc state RPROC_DEFUNCT
config: x86_64-buildonly-randconfig-002-20241016 (https://download.01.org/0day-ci/archive/20241016/202410161104.5ZIbsMLV-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241016/202410161104.5ZIbsMLV-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410161104.5ZIbsMLV-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/remoteproc/remoteproc_core.c: In function 'rproc_trigger_recovery':
>> drivers/remoteproc/remoteproc_core.c:1843:25: warning: comparison between pointer and integer
    1843 |         if (rproc_start == RPROC_DEFUNCT || rproc->state != RPROC_CRASHED)
         |                         ^~


vim +1843 drivers/remoteproc/remoteproc_core.c

  1820	
  1821	/**
  1822	 * rproc_trigger_recovery() - recover a remoteproc
  1823	 * @rproc: the remote processor
  1824	 *
  1825	 * The recovery is done by resetting all the virtio devices, that way all the
  1826	 * rpmsg drivers will be reseted along with the remote processor making the
  1827	 * remoteproc functional again.
  1828	 *
  1829	 * This function can sleep, so it cannot be called from atomic context.
  1830	 *
  1831	 * Return: 0 on success or a negative value upon failure
  1832	 */
  1833	int rproc_trigger_recovery(struct rproc *rproc)
  1834	{
  1835		struct device *dev = &rproc->dev;
  1836		int ret;
  1837	
  1838		ret = mutex_lock_interruptible(&rproc->lock);
  1839		if (ret)
  1840			return ret;
  1841	
  1842		/* State could have changed before we got the mutex */
> 1843		if (rproc_start == RPROC_DEFUNCT || rproc->state != RPROC_CRASHED)
  1844			goto unlock_mutex;
  1845	
  1846		dev_err(dev, "recovering %s\n", rproc->name);
  1847	
  1848		if (rproc_has_feature(rproc, RPROC_FEAT_ATTACH_ON_RECOVERY))
  1849			ret = rproc_attach_recovery(rproc);
  1850		else
  1851			ret = rproc_boot_recovery(rproc);
  1852	
  1853	unlock_mutex:
  1854		mutex_unlock(&rproc->lock);
  1855		return ret;
  1856	}
  1857	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki