linux-kernel - drivers/ata/sata_fsl.c:335:6: warning: %d in format string (no. 1) requires 'int *' but the argument type is 'unsigned int *'. [invalidScanfArgType

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Message-ID: <202202081300.g4MmMWrY-lkp@intel.com>
Date:   Tue, 8 Feb 2022 13:39:59 +0800
From:   kernel test robot <lkp@...el.com>
To:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Hannes Reinecke <hare@...e.de>
Subject: drivers/ata/sata_fsl.c:335:6: warning: %d in format string (no. 1)
 requires 'int *' but the argument type is 'unsigned int *'.
 [invalidScanfArgType_int]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   555f3d7be91a873114c9656069f1a9fa476ec41a
commit: 87924c5b4094f195507bebcab96e141e48c947d7 ata: sata_fsl: add compile test support
date:   5 weeks ago
compiler: powerpc-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


cppcheck warnings: (new ones prefixed by >>)
>> drivers/ata/sata_fsl.c:335:6: warning: %d in format string (no. 1) requires 'int *' but the argument type is 'unsigned int *'. [invalidScanfArgType_int]
    if (sscanf(buf, "%d%d",
        ^
   drivers/ata/sata_fsl.c:335:6: warning: %d in format string (no. 2) requires 'int *' but the argument type is 'unsigned int *'. [invalidScanfArgType_int]
    if (sscanf(buf, "%d%d",
        ^
   drivers/ata/sata_fsl.c:376:6: warning: %d in format string (no. 1) requires 'int *' but the argument type is 'unsigned int *'. [invalidScanfArgType_int]
    if (sscanf(buf, "%d", &rx_watermark) != 1) {
        ^

vim +335 drivers/ata/sata_fsl.c

6b4b8fc87dc5cbf Qiang Liu 2012-02-15  328  
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  329  static ssize_t fsl_sata_intr_coalescing_store(struct device *dev,
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  330  		struct device_attribute *attr,
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  331  		const char *buf, size_t count)
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  332  {
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  333  	unsigned int coalescing_count,	coalescing_ticks;
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  334  
6b4b8fc87dc5cbf Qiang Liu 2012-02-15 @335  	if (sscanf(buf, "%d%d",
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  336  				&coalescing_count,
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  337  				&coalescing_ticks) != 2) {
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  338  		printk(KERN_ERR "fsl-sata: wrong parameter format.\n");
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  339  		return -EINVAL;
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  340  	}
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  341  
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  342  	fsl_sata_set_irq_coalescing(dev_get_drvdata(dev),
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  343  			coalescing_count, coalescing_ticks);
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  344  
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  345  	return strlen(buf);
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  346  }
6b4b8fc87dc5cbf Qiang Liu 2012-02-15  347  

:::::: The code at line 335 was first introduced by commit
:::::: 6b4b8fc87dc5cbfcfb5c749dc200906471fb854c sata_fsl: add support for interrupt coalsecing feature

:::::: TO: Qiang Liu <qiang.liu@...escale.com>
:::::: CC: Jeff Garzik <jgarzik@...hat.com>

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