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Message-ID: <202306171837.X7dsEWDB-lkp@intel.com>
Date:   Sat, 17 Jun 2023 18:48:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/spi/spi-mpc52xx-psc.c:195:5: warning: no previous prototype
 for 'mpc52xx_psc_spi_transfer_one_message'

Hi Mark,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1639fae5132bc8a904af28d97cea0bedb3af802e
commit: 145cfc3840e5931a789a8e2e76af841ab4cad44b spi: mpc52xx-psc: Switch to using core message queue
date:   12 months ago
config: powerpc-randconfig-r032-20230617 (https://download.01.org/0day-ci/archive/20230617/202306171837.X7dsEWDB-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230617/202306171837.X7dsEWDB-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/202306171837.X7dsEWDB-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/spi/spi-mpc52xx-psc.c:195:5: warning: no previous prototype for 'mpc52xx_psc_spi_transfer_one_message' [-Wmissing-prototypes]
     195 | int mpc52xx_psc_spi_transfer_one_message(struct spi_controller *ctlr,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/mpc52xx_psc_spi_transfer_one_message +195 drivers/spi/spi-mpc52xx-psc.c

   194	
 > 195	int mpc52xx_psc_spi_transfer_one_message(struct spi_controller *ctlr,
   196						 struct spi_message *m)
   197	{
   198		struct spi_device *spi;
   199		struct spi_transfer *t = NULL;
   200		unsigned cs_change;
   201		int status;
   202	
   203		spi = m->spi;
   204		cs_change = 1;
   205		status = 0;
   206		list_for_each_entry (t, &m->transfers, transfer_list) {
   207			if (t->bits_per_word || t->speed_hz) {
   208				status = mpc52xx_psc_spi_transfer_setup(spi, t);
   209				if (status < 0)
   210					break;
   211			}
   212	
   213			if (cs_change)
   214				mpc52xx_psc_spi_activate_cs(spi);
   215			cs_change = t->cs_change;
   216	
   217			status = mpc52xx_psc_spi_transfer_rxtx(spi, t);
   218			if (status)
   219				break;
   220			m->actual_length += t->len;
   221	
   222			spi_transfer_delay_exec(t);
   223	
   224			if (cs_change)
   225				mpc52xx_psc_spi_deactivate_cs(spi);
   226		}
   227	
   228		m->status = status;
   229		if (status || !cs_change)
   230			mpc52xx_psc_spi_deactivate_cs(spi);
   231	
   232		mpc52xx_psc_spi_transfer_setup(spi, NULL);
   233	
   234		spi_finalize_current_message(ctlr);
   235	
   236		return 0;
   237	}
   238	

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

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