linux-kernel - Re: [PATCH 12/23] mtd: use mtd_eccpos() and mtd

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Message-ID: <201512080741.Ff54iWvd%fengguang.wu@intel.com>
Date:	Tue, 8 Dec 2015 07:36:44 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	kbuild-all@...org, David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, devel@...verdev.osuosl.org,
	linux-mips@...ux-mips.org,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-sunxi@...glegroups.com, Ralf Baechle <ralf@...ux-mips.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	linux-kernel@...r.kernel.org, Josh Wu <josh.wu@...el.com>,
	Chen-Yu Tsai <wens@...e.org>, Kukjin Kim <kgene@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	punnaiah choudary kalluri <punnaia@...inx.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Stefan Agner <stefan@...er.ch>, Daniel Mack <daniel@...que.org>
Subject: Re: [PATCH 12/23] mtd: use mtd_eccpos() and mtd_oobfree() where
 appropriate

Hi Boris,

[auto build test WARNING on next-20151207]
[cannot apply to staging/staging-testing v4.4-rc4 v4.4-rc3 v4.4-rc2 v4.4-rc4]

url:    https://github.com/0day-ci/linux/commits/Boris-Brezillon/mtd-rework-ECC-layout-definition/20151208-063127
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

>> drivers/mtd/nand/nand_base.c:1607: warning: No description found for parameter 'mtd'
>> drivers/mtd/nand/nand_base.c:1607: warning: Excess function parameter 'chip' description in 'nand_transfer_oob'
>> drivers/mtd/nand/nand_base.c:1607: warning: No description found for parameter 'mtd'
>> drivers/mtd/nand/nand_base.c:1607: warning: Excess function parameter 'chip' description in 'nand_transfer_oob'

vim +/mtd +1607 drivers/mtd/nand/nand_base.c

7e4178f9 Vitaly Wool     2006-06-07  1591  	i = mtd->oobsize - (oob - chip->oob_poi);
f5bbdacc Thomas Gleixner 2006-05-25  1592  	if (i)
f5bbdacc Thomas Gleixner 2006-05-25  1593  		chip->read_buf(mtd, oob, i);
f5bbdacc Thomas Gleixner 2006-05-25  1594  
3f91e94f Mike Dunn       2012-04-25  1595  	return max_bitflips;
^1da177e Linus Torvalds  2005-04-16  1596  }
^1da177e Linus Torvalds  2005-04-16  1597  
f5bbdacc Thomas Gleixner 2006-05-25  1598  /**
7854d3f7 Brian Norris    2011-06-23  1599   * nand_transfer_oob - [INTERN] Transfer oob to client buffer
8593fbc6 Thomas Gleixner 2006-05-29  1600   * @chip: nand chip structure
844d3b42 Randy Dunlap    2006-06-28  1601   * @oob: oob destination address
8593fbc6 Thomas Gleixner 2006-05-29  1602   * @ops: oob ops structure
7014568b Vitaly Wool     2006-11-03  1603   * @len: size of oob to transfer
8593fbc6 Thomas Gleixner 2006-05-29  1604   */
64456fac Boris Brezillon 2015-12-07  1605  static uint8_t *nand_transfer_oob(struct mtd_info *mtd, uint8_t *oob,
7014568b Vitaly Wool     2006-11-03  1606  				  struct mtd_oob_ops *ops, size_t len)
8593fbc6 Thomas Gleixner 2006-05-29 @1607  {
64456fac Boris Brezillon 2015-12-07  1608  	struct nand_chip *chip = mtd->priv;
64456fac Boris Brezillon 2015-12-07  1609  
8593fbc6 Thomas Gleixner 2006-05-29  1610  	switch (ops->mode) {
8593fbc6 Thomas Gleixner 2006-05-29  1611  
0612b9dd Brian Norris    2011-08-30  1612  	case MTD_OPS_PLACE_OOB:
0612b9dd Brian Norris    2011-08-30  1613  	case MTD_OPS_RAW:
8593fbc6 Thomas Gleixner 2006-05-29  1614  		memcpy(oob, chip->oob_poi + ops->ooboffs, len);
8593fbc6 Thomas Gleixner 2006-05-29  1615  		return oob + len;

:::::: The code at line 1607 was first introduced by commit
:::::: 8593fbc68b0df1168995de76d1af38eb62fd6b62 [MTD] Rework the out of band handling completely

:::::: TO: Thomas Gleixner <tglx@...ncher.tec.linutronix.de>
:::::: CC: Thomas Gleixner <tglx@...ncher.tec.linutronix.de>

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