linux-kernel - Re: [PATCH v12 6/8] spi: spi-qpic: add driver for QCOM SPI NAND flash Interface

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Message-ID: <8795ecde-5faf-0110-a01c-8e194ea9b43b@quicinc.com>
Date: Tue, 29 Oct 2024 09:45:26 +0530
From: Md Sadre Alam <quic_mdalam@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        kernel test robot
	<lkp@...el.com>, <broonie@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <andersson@...nel.org>, <konradybcio@...nel.org>,
        <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <manivannan.sadhasivam@...aro.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>
CC: <oe-kbuild-all@...ts.linux.dev>, <quic_srichara@...cinc.com>,
        <quic_varada@...cinc.com>
Subject: Re: [PATCH v12 6/8] spi: spi-qpic: add driver for QCOM SPI NAND flash
 Interface



On 10/25/2024 11:44 PM, Konrad Dybcio wrote:
> On 25.10.2024 6:08 PM, kernel test robot wrote:
>> Hi Md,
>>
>> kernel test robot noticed the following build warnings:
>>
>> [auto build test WARNING on mtd/nand/next]
>> [also build test WARNING on broonie-spi/for-next robh/for-next linus/master v6.12-rc4 next-20241025]
>> [If your patch is applied to the wrong git tree, kindly drop us a note.
>> And when submitting patch, we suggest to use '--base' as documented in
>> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>>
>> url:    https://github.com/intel-lab-lkp/linux/commits/Md-Sadre-Alam/spi-dt-bindings-Introduce-qcom-spi-qpic-snand/20241021-200849
>> base:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next
>> patch link:    https://lore.kernel.org/r/20241021115620.1616617-7-quic_mdalam%40quicinc.com
>> patch subject: [PATCH v12 6/8] spi: spi-qpic: add driver for QCOM SPI NAND flash Interface
>> config: sparc64-randconfig-r073-20241023 (https://download.01.org/0day-ci/archive/20241025/202410252355.ZofaMeku-lkp@intel.com/config)
>> compiler: sparc64-linux-gcc (GCC) 14.1.0
>>
>> 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/202410252355.ZofaMeku-lkp@intel.com/
>>
>> smatch warnings:
>> drivers/spi/spi-qpic-snand.c:1260 qcom_spi_write_page() warn: unsigned 'cmd' is never less than zero.
>> drivers/spi/spi-qpic-snand.c:1279 qcom_spi_send_cmdaddr() warn: unsigned 'cmd' is never less than zero.
>>
>> vim +/cmd +1260 drivers/spi/spi-qpic-snand.c
>>
>>    1252	
>>    1253	static int qcom_spi_write_page(struct qcom_nand_controller *snandc,
>>    1254				       const struct spi_mem_op *op)
>>    1255	{
>>    1256		struct qpic_snand_op s_op = {};
>>    1257		u32 cmd;
>>    1258	
>>    1259		cmd = qcom_spi_cmd_mapping(snandc, op->cmd.opcode);
>>> 1260		if (cmd < 0)
>>    1261			return cmd;
> 
> The robot is right, qcom_spi_cmd_mapping() should return an int, as you
> return a negative errno upon failure
Ok will fix in next revision.
> 
> Konrad