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From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: drivers/ata/pata_pdc2027x.c:521:2: warning: Value stored to 'pll_ctl' is never read [clang-analyzer-deadcode.DeadStores]
Date: Tue, 25 Jan 2022 23:14:07 +0800	[thread overview]
Message-ID: <202201252302.RWrXf0BG-lkp@intel.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 23207 bytes --]

CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Hannes Reinecke <hare@suse.com>
CC: Damien Le Moal <damien.lemoal@opensource.wdc.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a08b41ab9e2e468647f78eb17c28e29b93006394
commit: b5a5fc8b0f8175e4b3aaf182c1b23de4ccdd3347 ata: pata_pdc2027x: Replace PDPRINTK() with standard ata logging
date:   3 weeks ago
:::::: branch date: 9 hours ago
:::::: commit date: 3 weeks ago
config: x86_64-randconfig-c007-20220124 (https://download.01.org/0day-ci/archive/20220125/202201252302.RWrXf0BG-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5a5fc8b0f8175e4b3aaf182c1b23de4ccdd3347
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b5a5fc8b0f8175e4b3aaf182c1b23de4ccdd3347
        # save the config file to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer 

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


clang-analyzer warnings: (new ones prefixed by >>)
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   4 warnings generated.
   drivers/acpi/pci_link.c:88:14: warning: Value stored to 'handle' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
           acpi_handle handle = link->device->handle;
                       ^~~~~~   ~~~~~~~~~~~~~~~~~~~~
   drivers/acpi/pci_link.c:88:14: note: Value stored to 'handle' during its initialization is never read
           acpi_handle handle = link->device->handle;
                       ^~~~~~   ~~~~~~~~~~~~~~~~~~~~
   drivers/acpi/pci_link.c:721:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
           strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
           ^~~~~~
   drivers/acpi/pci_link.c:721:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119
           strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
           ^~~~~~
   drivers/acpi/pci_link.c:722:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
           strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
           ^~~~~~
   drivers/acpi/pci_link.c:722:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119
           strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
           ^~~~~~
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   2 warnings generated.
   drivers/acpi/pci_irq.c:131:4: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
                           strcpy(prt->source, quirk->actual_source);
                           ^~~~~~
   drivers/acpi/pci_irq.c:131:4: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119
                           strcpy(prt->source, quirk->actual_source);
                           ^~~~~~
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   2 warnings generated.
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   7 warnings generated.
>> drivers/ata/pata_pdc2027x.c:521:2: warning: Value stored to 'pll_ctl' is never read [clang-analyzer-deadcode.DeadStores]
           pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
           ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/ata/pata_pdc2027x.c:521:2: note: Value stored to 'pll_ctl' is never read
           pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
           ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/ata/pata_pdc2027x.c:570:2: warning: Value stored to 'pll_ctl' is never read [clang-analyzer-deadcode.DeadStores]
           pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
           ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/ata/pata_pdc2027x.c:570:2: note: Value stored to 'pll_ctl' is never read
           pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
           ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   2 warnings generated.
   drivers/video/fbdev/riva/rivafb-i2c.c:94:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
           strcpy(chan->adapter.name, name);
           ^~~~~~
   drivers/video/fbdev/riva/rivafb-i2c.c:94:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119
           strcpy(chan->adapter.name, name);
           ^~~~~~
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   2 warnings generated.
   drivers/video/fbdev/nvidia/nvidia.c:124:4: warning: Value stored to 'tmp' is never read [clang-analyzer-deadcode.DeadStores]
                           tmp = 0;
                           ^     ~
   drivers/video/fbdev/nvidia/nvidia.c:124:4: note: Value stored to 'tmp' is never read
                           tmp = 0;
                           ^     ~
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   5 warnings generated.
   drivers/video/fbdev/nvidia/nv_hw.c:261:2: warning: Value stored to 'clwm' is never read [clang-analyzer-deadcode.DeadStores]
           clwm = 0;
           ^      ~
   drivers/video/fbdev/nvidia/nv_hw.c:261:2: note: Value stored to 'clwm' is never read
           clwm = 0;
           ^      ~
   drivers/video/fbdev/nvidia/nv_hw.c:284:2: warning: Value stored to 'pclks' is never read [clang-analyzer-deadcode.DeadStores]
           pclks += 0;
           ^        ~
   drivers/video/fbdev/nvidia/nv_hw.c:284:2: note: Value stored to 'pclks' is never read
           pclks += 0;
           ^        ~
   drivers/video/fbdev/nvidia/nv_hw.c:439:2: warning: Value stored to 'clwm' is never read [clang-analyzer-deadcode.DeadStores]
           clwm = 0;
           ^      ~
   drivers/video/fbdev/nvidia/nv_hw.c:439:2: note: Value stored to 'clwm' is never read
           clwm = 0;
           ^      ~
   Suppressed 2 warnings (1 in non-user code, 1 with check filters).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   1 warning generated.
   Suppressed 1 warnings (1 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   3 warnings generated.
   drivers/hwmon/lm75.h:30:29: warning: The result of the left shift is undefined because the left operand is negative [clang-analyzer-core.UndefinedBinaryOperatorResult]
           return (u16)((ntemp / 500) << 7);
                                      ^
   drivers/hwmon/ad7418.c:166:6: note: Assuming 'ret' is >= 0
           if (ret < 0)
               ^~~~~~~
   drivers/hwmon/ad7418.c:166:2: note: Taking false branch
           if (ret < 0)
           ^
   drivers/hwmon/ad7418.c:170:28: note: Calling 'LM75_TEMP_TO_REG'
           data->temp[attr->index] = LM75_TEMP_TO_REG(temp);
                                     ^~~~~~~~~~~~~~~~~~~~~~
   drivers/hwmon/lm75.h:27:14: note: Assuming '__UNIQUE_ID___x298' is <= '__UNIQUE_ID___y299'
           int ntemp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);

vim +/pll_ctl +521 drivers/ata/pata_pdc2027x.c

669a5db411d85a Jeff Garzik     2006-08-29  492  
669a5db411d85a Jeff Garzik     2006-08-29  493  /**
1906cf27fcc070 Lee Jones       2021-02-01  494   * pdc_adjust_pll - Adjust the PLL input clock in Hz.
669a5db411d85a Jeff Garzik     2006-08-29  495   *
5d728824efeda6 Tejun Heo       2007-04-17  496   * @host: target ATA host
669a5db411d85a Jeff Garzik     2006-08-29  497   * @pll_clock: The input of PLL in HZ
1906cf27fcc070 Lee Jones       2021-02-01  498   * @board_idx: board identifier
669a5db411d85a Jeff Garzik     2006-08-29  499   */
5d728824efeda6 Tejun Heo       2007-04-17  500  static void pdc_adjust_pll(struct ata_host *host, long pll_clock, unsigned int board_idx)
669a5db411d85a Jeff Garzik     2006-08-29  501  {
5d728824efeda6 Tejun Heo       2007-04-17  502  	void __iomem *mmio_base = host->iomap[PDC_MMIO_BAR];
669a5db411d85a Jeff Garzik     2006-08-29  503  	u16 pll_ctl;
669a5db411d85a Jeff Garzik     2006-08-29  504  	long pll_clock_khz = pll_clock / 1000;
669a5db411d85a Jeff Garzik     2006-08-29  505  	long pout_required = board_idx? PDC_133_MHZ:PDC_100_MHZ;
669a5db411d85a Jeff Garzik     2006-08-29  506  	long ratio = pout_required / pll_clock_khz;
669a5db411d85a Jeff Garzik     2006-08-29  507  	int F, R;
669a5db411d85a Jeff Garzik     2006-08-29  508  
669a5db411d85a Jeff Garzik     2006-08-29  509  	/* Sanity check */
669a5db411d85a Jeff Garzik     2006-08-29  510  	if (unlikely(pll_clock_khz < 5000L || pll_clock_khz > 70000L)) {
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  511  		dev_err(host->dev, "Invalid PLL input clock %ldkHz, give up!\n",
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  512  			pll_clock_khz);
669a5db411d85a Jeff Garzik     2006-08-29  513  		return;
669a5db411d85a Jeff Garzik     2006-08-29  514  	}
669a5db411d85a Jeff Garzik     2006-08-29  515  
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  516  	dev_dbg(host->dev, "pout_required is %ld\n", pout_required);
669a5db411d85a Jeff Garzik     2006-08-29  517  
669a5db411d85a Jeff Garzik     2006-08-29  518  	/* Show the current clock value of PLL control register
669a5db411d85a Jeff Garzik     2006-08-29  519  	 * (maybe already configured by the firmware)
669a5db411d85a Jeff Garzik     2006-08-29  520  	 */
d2a84f47899d1e Alan Cox        2007-09-20 @521  	pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
669a5db411d85a Jeff Garzik     2006-08-29  522  
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  523  	dev_dbg(host->dev, "pll_ctl[%X]\n", pll_ctl);
669a5db411d85a Jeff Garzik     2006-08-29  524  
669a5db411d85a Jeff Garzik     2006-08-29  525  	/*
669a5db411d85a Jeff Garzik     2006-08-29  526  	 * Calculate the ratio of F, R and OD
669a5db411d85a Jeff Garzik     2006-08-29  527  	 * POUT = (F + 2) / (( R + 2) * NO)
669a5db411d85a Jeff Garzik     2006-08-29  528  	 */
669a5db411d85a Jeff Garzik     2006-08-29  529  	if (ratio < 8600L) { /* 8.6x */
669a5db411d85a Jeff Garzik     2006-08-29  530  		/* Using NO = 0x01, R = 0x0D */
669a5db411d85a Jeff Garzik     2006-08-29  531  		R = 0x0d;
669a5db411d85a Jeff Garzik     2006-08-29  532  	} else if (ratio < 12900L) { /* 12.9x */
669a5db411d85a Jeff Garzik     2006-08-29  533  		/* Using NO = 0x01, R = 0x08 */
669a5db411d85a Jeff Garzik     2006-08-29  534  		R = 0x08;
669a5db411d85a Jeff Garzik     2006-08-29  535  	} else if (ratio < 16100L) { /* 16.1x */
669a5db411d85a Jeff Garzik     2006-08-29  536  		/* Using NO = 0x01, R = 0x06 */
669a5db411d85a Jeff Garzik     2006-08-29  537  		R = 0x06;
669a5db411d85a Jeff Garzik     2006-08-29  538  	} else if (ratio < 64000L) { /* 64x */
669a5db411d85a Jeff Garzik     2006-08-29  539  		R = 0x00;
669a5db411d85a Jeff Garzik     2006-08-29  540  	} else {
669a5db411d85a Jeff Garzik     2006-08-29  541  		/* Invalid ratio */
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  542  		dev_err(host->dev, "Invalid ratio %ld, give up!\n", ratio);
669a5db411d85a Jeff Garzik     2006-08-29  543  		return;
669a5db411d85a Jeff Garzik     2006-08-29  544  	}
669a5db411d85a Jeff Garzik     2006-08-29  545  
669a5db411d85a Jeff Garzik     2006-08-29  546  	F = (ratio * (R+2)) / 1000 - 2;
669a5db411d85a Jeff Garzik     2006-08-29  547  
669a5db411d85a Jeff Garzik     2006-08-29  548  	if (unlikely(F < 0 || F > 127)) {
669a5db411d85a Jeff Garzik     2006-08-29  549  		/* Invalid F */
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  550  		dev_err(host->dev, "F[%d] invalid!\n", F);
669a5db411d85a Jeff Garzik     2006-08-29  551  		return;
669a5db411d85a Jeff Garzik     2006-08-29  552  	}
669a5db411d85a Jeff Garzik     2006-08-29  553  
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  554  	dev_dbg(host->dev, "F[%d] R[%d] ratio*1000[%ld]\n", F, R, ratio);
669a5db411d85a Jeff Garzik     2006-08-29  555  
669a5db411d85a Jeff Garzik     2006-08-29  556  	pll_ctl = (R << 8) | F;
669a5db411d85a Jeff Garzik     2006-08-29  557  
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  558  	dev_dbg(host->dev, "Writing pll_ctl[%X]\n", pll_ctl);
669a5db411d85a Jeff Garzik     2006-08-29  559  
d2a84f47899d1e Alan Cox        2007-09-20  560  	iowrite16(pll_ctl, mmio_base + PDC_PLL_CTL);
d2a84f47899d1e Alan Cox        2007-09-20  561  	ioread16(mmio_base + PDC_PLL_CTL); /* flush */
669a5db411d85a Jeff Garzik     2006-08-29  562  
669a5db411d85a Jeff Garzik     2006-08-29  563  	/* Wait the PLL circuit to be stable */
b3506c7ed216dd Jia-Ju Bai      2018-01-25  564  	msleep(30);
669a5db411d85a Jeff Garzik     2006-08-29  565  
669a5db411d85a Jeff Garzik     2006-08-29  566  	/*
669a5db411d85a Jeff Garzik     2006-08-29  567  	 *  Show the current clock value of PLL control register
669a5db411d85a Jeff Garzik     2006-08-29  568  	 * (maybe configured by the firmware)
669a5db411d85a Jeff Garzik     2006-08-29  569  	 */
d2a84f47899d1e Alan Cox        2007-09-20  570  	pll_ctl = ioread16(mmio_base + PDC_PLL_CTL);
669a5db411d85a Jeff Garzik     2006-08-29  571  
b5a5fc8b0f8175 Hannes Reinecke 2021-12-21  572  	dev_dbg(host->dev, "pll_ctl[%X]\n", pll_ctl);
669a5db411d85a Jeff Garzik     2006-08-29  573  
669a5db411d85a Jeff Garzik     2006-08-29  574  	return;
669a5db411d85a Jeff Garzik     2006-08-29  575  }
669a5db411d85a Jeff Garzik     2006-08-29  576  

:::::: The code at line 521 was first introduced by commit
:::::: d2a84f47899d1efc24fa610696f7b793692279c7 pdc2027x: Switch properly to ioread/iowrite

:::::: TO: Alan Cox <alan@lxorguk.ukuu.org.uk>
:::::: CC: Jeff Garzik <jeff@garzik.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

             reply	other threads:[~2022-01-25 15:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25 15:14 kernel test robot [this message]
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2022-02-27 18:39 drivers/ata/pata_pdc2027x.c:521:2: warning: Value stored to 'pll_ctl' is never read [clang-analyzer-deadcode.DeadStores] kernel test robot
2022-04-12 23:07 kernel test robot

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