Re: [PATCH v2 9/9] mtd: rawnand: jz4780-bch: Add support for the JZ4740

kbuild test robot
2019-02-04T09:26:58Z

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Hi Paul,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mtd/nand/next]
[also build test ERROR on v5.0-rc4 next-20190204]
[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/Paul-Cercueil/Ingenic-JZ4780-NAND-patchset-v2/20190204-163709
base: git://git.infradead.org/linux-mtd.git nand/next
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=8.2.0 make.cross ARCH=sparc64

All errors (new ones prefixed by >>):

drivers/mtd/nand/raw/ingenic/jz4740_bch.c: In function 'jz4740_bch_init':
drivers/mtd/nand/raw/ingenic/jz4740_bch.c:46:2: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration]
writel(0, bch->base + JZ_REG_NAND_IRQ_STAT);
^~~~~~
>> drivers/mtd/nand/raw/ingenic/jz4740_bch.c:49:8: error: implicit declaration of function 'readl'; did you mean 'd_real'? [-Werror=implicit-function-declaration]
reg = readl(bch->base + JZ_REG_NAND_ECC_CTRL);
^~~~~
d_real
drivers/mtd/nand/raw/ingenic/jz4740_bch.c: In function 'jz4740_bch_calculate':
drivers/mtd/nand/raw/ingenic/jz4740_bch.c:83:17: error: implicit declaration of function 'readb' [-Werror=implicit-function-declaration]
ecc_code[i] = readb(bch->base + JZ_REG_NAND_PAR0 + i);
^~~~~
drivers/mtd/nand/raw/ingenic/jz4740_bch.c: In function 'jz4740_bch_correct':
drivers/mtd/nand/raw/ingenic/jz4740_bch.c:123:3: error: implicit declaration of function 'writeb'; did you mean 'up_write'? [-Werror=implicit-function-declaration]
writeb(ecc_code[i], bch->base + JZ_REG_NAND_PAR0 + i);
^~~~~~
up_write
cc1: some warnings being treated as errors

vim +49 drivers/mtd/nand/raw/ingenic/jz4740_bch.c

40
41 static void jz4740_bch_init(struct jz4780_bch *bch, bool encode)
42 {
43 uint32_t reg;
44
45 /* Clear interrupt status */
> 46 writel(0, bch->base + JZ_REG_NAND_IRQ_STAT);
47
48 /* Initialize and enable BCH */
> 49 reg = readl(bch->base + JZ_REG_NAND_ECC_CTRL);
50 reg |= JZ_NAND_ECC_CTRL_RESET;
51 reg |= JZ_NAND_ECC_CTRL_ENABLE;
52 reg |= JZ_NAND_ECC_CTRL_RS;
53 if (encode)
54 reg |= JZ_NAND_ECC_CTRL_ENCODING;
55 else
56 reg &= ~JZ_NAND_ECC_CTRL_ENCODING;
57
58 writel(reg, bch->base + JZ_REG_NAND_ECC_CTRL);
59 }
60

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