linux-kernel - Re: [PATCH v6 2/2] mtd: nand_bbt: scan for next free bbt block if writing bbt fails

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Date:	Sat, 13 Aug 2016 03:30:15 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Kyle Roeschley <kyle.roeschley@...com>
Cc:	kbuild-all@...org, boris.brezillon@...e-electrons.com,
	richard@....at, dwmw2@...radead.org, computersforpeace@...il.com,
	beanhuo@...ron.com, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, nathan.sullivan@...com,
	xander.huff@...com, peterpansjtu@...il.com
Subject: Re: [PATCH v6 2/2] mtd: nand_bbt: scan for next free bbt block if
 writing bbt fails

Hi Kyle,

[auto build test WARNING on mtd/master]
[also build test WARNING on v4.8-rc1 next-20160812]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Kyle-Roeschley/mtd-nand_bbt-Move-BBT-block-selection-logic-out-of-write_bbt/20160813-015713
base:   git://git.infradead.org/linux-mtd.git master
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

>> drivers/mtd/nand/nand_bbt.c:685: warning: No description found for parameter 'block'
>> drivers/mtd/nand/nand_bbt.c:685: warning: Excess function parameter 'md' description in 'mark_bbt_block_bad'
   drivers/mtd/nand/nand_bbt.c:1: warning: no structured comments found
>> drivers/mtd/nand/nand_bbt.c:685: warning: No description found for parameter 'block'
>> drivers/mtd/nand/nand_bbt.c:685: warning: Excess function parameter 'md' description in 'mark_bbt_block_bad'

vim +/block +685 drivers/mtd/nand/nand_bbt.c

   669	
   670	/**
   671	 * mark_bbt_block_bad - Mark one of the block reserved for BBT bad
   672	 * @this: the NAND device
   673	 * @td: the BBT description
   674	 * @md: the mirror BBT descriptor
   675	 * @chip: the CHIP selector
   676	 *
   677	 * Blocks reserved for BBT can become bad. This functions is an helper to mark
   678	 * such blocks as bad. It takes care of updating the in-memory BBT, marking the
   679	 * block as bad using a bad block marker and invalidating the associated
   680	 * td->pages[] entry.
   681	 */
   682	static void mark_bbt_block_bad(struct nand_chip *this,
   683				       struct nand_bbt_descr *td,
   684				       int chip, int block)
 > 685	{
   686		struct mtd_info *mtd = nand_to_mtd(this);
   687		loff_t to;
   688		int res;
   689	
   690		bbt_mark_entry(this, block, BBT_BLOCK_WORN);
   691	
   692		to = (loff_t)block << this->bbt_erase_shift;
   693		res = this->block_markbad(mtd, to);

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