Subject: Re: [PATCH 2/3] soc: amazon: al-pos: Introduce Amazon's Annapurna Labs POS driver

From: kbuild test robot <[email-masked]>
Date: Mon, 9 Sep 2019 19:51:24 +0800

Hi Talel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc8 next-20190904]
[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/Talel-Shenhar/Amazon-s-Annapurna-Labs-POS-Driver/20190909-180243
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 7.4.0
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=7.4.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email-masked]>

All warnings (new ones prefixed by >>):

   drivers/soc/amazon/al_pos.c: In function 'al_pos_irq_handler':
>> drivers/soc/amazon/al_pos.c:56:57: warning: left shift count >= width of type [-Wshift-count-overflow]
     addr |= (FIELD_GET(AL_POS_ERROR_LOG_1_ADDR_HIGH, log1) << 32);
                                                            ^~

vim +56 drivers/soc/amazon/al_pos.c

    37	
    38	static irqreturn_t al_pos_irq_handler(int irq, void *info)
    39	{
    40		struct platform_device *pdev = info;
    41		struct al_pos *pos = platform_get_drvdata(pdev);
    42		u32 log1;
    43		u32 log0;
    44		u64 addr;
    45		u16 request_id;
    46		u8 bresp;
    47	
    48		log1 = readl_relaxed(pos->mmio_base + AL_POS_ERROR_LOG_1);
    49		if (!FIELD_GET(AL_POS_ERROR_LOG_1_VALID, log1))
    50			return IRQ_NONE;
    51	
    52		log0 = readl_relaxed(pos->mmio_base + AL_POS_ERROR_LOG_0);
    53		writel_relaxed(0, pos->mmio_base + AL_POS_ERROR_LOG_1);
    54	
    55		addr = FIELD_GET(AL_POS_ERROR_LOG_0_ADDR_LOW, log0);
  > 56		addr |= (FIELD_GET(AL_POS_ERROR_LOG_1_ADDR_HIGH, log1) << 32);
    57		request_id = FIELD_GET(AL_POS_ERROR_LOG_1_REQUEST_ID, log1);
    58		bresp = FIELD_GET(AL_POS_ERROR_LOG_1_BRESP, log1);
    59	
    60		dev_err(&pdev->dev, "addr=0x%llx request_id=0x%x bresp=0x%x\n",
    61			addr, request_id, bresp);
    62	
    63		if (al_pos_panic)
    64			panic("POS");
    65	
    66		return IRQ_HANDLED;
    67	}
    68	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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