[PATCH v8 2/3] PCI: Make sure the driver could get correct BAR size from pci_resource_len()

kbuild test robot lkp at intel.com
Sat Jan 21 07:41:50 AEDT 2017


Hi Yongji,

[auto build test WARNING on pci/next]
[also build test WARNING on v4.10-rc4 next-20170120]
[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/Yongji-Xie/PCI-Ignore-requested-alignment-for-IOV-BARs/20170121-031322
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: x86_64-kexec (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from drivers/ata/sata_sis.c:35:0:
   drivers/ata/sata_sis.c: In function 'sis_init_one':
   include/linux/pci.h:1648:44: warning: comparison between 'enum <anonymous>' and 'enum <anonymous>' [-Wenum-compare]
    #define pci_resource_end(dev, bar) (((bar) > PCI_ROM_RESOURCE) ? \
                                               ^
   include/linux/pci.h:1655:4: note: in expansion of macro 'pci_resource_end'
       pci_resource_end((dev), (bar)) ==  \
       ^~~~~~~~~~~~~~~~
>> drivers/ata/sata_sis.c:223:8: note: in expansion of macro 'pci_resource_len'
          (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) {
           ^~~~~~~~~~~~~~~~
   include/linux/pci.h:1648:44: warning: comparison between 'enum <anonymous>' and 'enum <anonymous>' [-Wenum-compare]
    #define pci_resource_end(dev, bar) (((bar) > PCI_ROM_RESOURCE) ? \
                                               ^
   include/linux/pci.h:1658:4: note: in expansion of macro 'pci_resource_end'
      (pci_resource_end((dev), (bar)) -  \
       ^~~~~~~~~~~~~~~~
>> drivers/ata/sata_sis.c:223:8: note: in expansion of macro 'pci_resource_len'
          (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) {
           ^~~~~~~~~~~~~~~~

vim +/pci_resource_len +223 drivers/ata/sata_sis.c

af36d7f0 drivers/scsi/sata_sis.c Jeff Garzik               2005-08-28   29   *  Hardware documentation available under NDA.
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   30   *
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   31   */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   32  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   33  #include <linux/kernel.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   34  #include <linux/module.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  @35  #include <linux/pci.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   36  #include <linux/blkdev.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   37  #include <linux/delay.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   38  #include <linux/interrupt.h>
a9524a76 drivers/scsi/sata_sis.c Jeff Garzik               2005-10-30   39  #include <linux/device.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   40  #include <scsi/scsi_host.h>
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   41  #include <linux/libata.h>
4bb64fb9 drivers/ata/sata_sis.c  Alan Cox                  2007-02-16   42  #include "sis.h"
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   43  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   44  #define DRV_NAME	"sata_sis"
2a3103ce drivers/ata/sata_sis.c  Jeff Garzik               2007-08-31   45  #define DRV_VERSION	"1.0"
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   46  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   47  enum {
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   48  	sis_180			= 0,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   49  	SIS_SCR_PCI_BAR		= 5,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   50  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   51  	/* PCI configuration registers */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   52  	SIS_GENCTL		= 0x54, /* IDE General Control register */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   53  	SIS_SCR_BASE		= 0xc0, /* sata0 phy SCR registers */
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07   54  	SIS180_SATA1_OFS	= 0x10, /* offset from sata0->sata1 phy regs */
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07   55  	SIS182_SATA1_OFS	= 0x20, /* offset from sata0->sata1 phy regs */
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07   56  	SIS_PMR			= 0x90, /* port mapping register */
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07   57  	SIS_PMR_COMBINED	= 0x30,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   58  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   59  	/* random bits */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   60  	SIS_FLAG_CFGSCR		= (1 << 30), /* host flag: SCRs via PCI cfg */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   61  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   62  	GENCTL_IOMAPPED_SCR	= (1 << 26), /* if set, SCRs are in IO space */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   63  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   64  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   65  static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31   66  static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31   67  static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   68  
3b7d697d drivers/scsi/sata_sis.c Jeff Garzik               2005-11-10   69  static const struct pci_device_id sis_pci_tbl[] = {
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04   70  	{ PCI_VDEVICE(SI, 0x0180), sis_180 },	/* SiS 964/180 */
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04   71  	{ PCI_VDEVICE(SI, 0x0181), sis_180 },	/* SiS 964/180 */
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04   72  	{ PCI_VDEVICE(SI, 0x0182), sis_180 },	/* SiS 965/965L */
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04   73  	{ PCI_VDEVICE(SI, 0x0183), sis_180 },	/* SiS 965/965L */
a3cabb27 drivers/ata/sata_sis.c  Uwe Koziolek              2007-06-14   74  	{ PCI_VDEVICE(SI, 0x1182), sis_180 },	/* SiS 966/680 */
a3cabb27 drivers/ata/sata_sis.c  Uwe Koziolek              2007-06-14   75  	{ PCI_VDEVICE(SI, 0x1183), sis_180 },	/* SiS 966/966L/968/680 */
2d2744fc drivers/ata/sata_sis.c  Jeff Garzik               2006-09-28   76  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   77  	{ }	/* terminate list */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   78  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   79  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   80  static struct pci_driver sis_pci_driver = {
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   81  	.name			= DRV_NAME,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   82  	.id_table		= sis_pci_tbl,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   83  	.probe			= sis_init_one,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   84  	.remove			= ata_pci_remove_one,
58eb8cd5 drivers/ata/sata_sis.c  Bartlomiej Zolnierkiewicz 2014-05-07   85  #ifdef CONFIG_PM_SLEEP
55c82a6c drivers/ata/sata_sis.c  Alan                      2014-01-01   86  	.suspend		= ata_pci_device_suspend,
55c82a6c drivers/ata/sata_sis.c  Alan                      2014-01-01   87  	.resume			= ata_pci_device_resume,
55c82a6c drivers/ata/sata_sis.c  Alan                      2014-01-01   88  #endif
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   89  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   90  
193515d5 drivers/scsi/sata_sis.c Jeff Garzik               2005-11-07   91  static struct scsi_host_template sis_sht = {
68d1d07b drivers/ata/sata_sis.c  Tejun Heo                 2008-03-25   92  	ATA_BMDMA_SHT(DRV_NAME),
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   93  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   94  
029cfd6b drivers/ata/sata_sis.c  Tejun Heo                 2008-03-25   95  static struct ata_port_operations sis_ops = {
029cfd6b drivers/ata/sata_sis.c  Tejun Heo                 2008-03-25   96  	.inherits		= &ata_bmdma_port_ops,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   97  	.scr_read		= sis_scr_read,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   98  	.scr_write		= sis_scr_write,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16   99  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  100  
1626aeb8 drivers/ata/sata_sis.c  Tejun Heo                 2007-05-04  101  static const struct ata_port_info sis_port_info = {
9cbe056f drivers/ata/sata_sis.c  Sergei Shtylyov           2011-02-04  102  	.flags		= ATA_FLAG_SATA,
14bdef98 drivers/ata/sata_sis.c  Erik Inge Bolsø           2009-03-14  103  	.pio_mask	= ATA_PIO4,
14bdef98 drivers/ata/sata_sis.c  Erik Inge Bolsø           2009-03-14  104  	.mwdma_mask	= ATA_MWDMA2,
bf6263a8 drivers/ata/sata_sis.c  Jeff Garzik               2007-07-09  105  	.udma_mask	= ATA_UDMA6,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  106  	.port_ops	= &sis_ops,
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  107  };
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  108  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  109  MODULE_AUTHOR("Uwe Koziolek");
142924cf drivers/ata/sata_sis.c  Chris Dunlop              2011-10-24  110  MODULE_DESCRIPTION("low-level driver for Silicon Integrated Systems SATA controller");
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  111  MODULE_LICENSE("GPL");
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  112  MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  113  MODULE_VERSION(DRV_VERSION);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  114  
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  115  static unsigned int get_scr_cfg_addr(struct ata_link *link, unsigned int sc_reg)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  116  {
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  117  	struct ata_port *ap = link->ap;
9b14dec5 drivers/ata/sata_sis.c  Alan Cox                  2007-01-08  118  	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  119  	unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);
9b14dec5 drivers/ata/sata_sis.c  Alan Cox                  2007-01-08  120  	u8 pmr;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  121  
9b14dec5 drivers/ata/sata_sis.c  Alan Cox                  2007-01-08  122  	if (ap->port_no)  {
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  123  		switch (pdev->device) {
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  124  		case 0x0180:
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  125  		case 0x0181:
9b14dec5 drivers/ata/sata_sis.c  Alan Cox                  2007-01-08  126  			pci_read_config_byte(pdev, SIS_PMR, &pmr);
9b14dec5 drivers/ata/sata_sis.c  Alan Cox                  2007-01-08  127  			if ((pmr & SIS_PMR_COMBINED) == 0)
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  128  				addr += SIS180_SATA1_OFS;
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  129  			break;
8add7885 drivers/scsi/sata_sis.c Jeff Garzik               2005-09-08  130  
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  131  		case 0x0182:
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  132  		case 0x0183:
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  133  		case 0x1182:
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  134  			addr += SIS182_SATA1_OFS;
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  135  			break;
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  136  		}
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  137  	}
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  138  	if (link->pmp)
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  139  		addr += 0x10;
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  140  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  141  	return addr;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  142  }
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  143  
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  144  static u32 sis_scr_cfg_read(struct ata_link *link,
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  145  			    unsigned int sc_reg, u32 *val)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  146  {
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  147  	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  148  	unsigned int cfg_addr = get_scr_cfg_addr(link, sc_reg);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  149  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  150  	if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
8e5443a0 drivers/ata/sata_sis.c  Tejun Heo                 2008-04-24  151  		return -EINVAL;
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  152  
aaa092a1 drivers/ata/sata_sis.c  Tejun Heo                 2007-10-18  153  	pci_read_config_dword(pdev, cfg_addr, val);
aaa092a1 drivers/ata/sata_sis.c  Tejun Heo                 2007-10-18  154  	return 0;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  155  }
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  156  
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  157  static int sis_scr_cfg_write(struct ata_link *link,
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  158  			     unsigned int sc_reg, u32 val)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  159  {
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  160  	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  161  	unsigned int cfg_addr = get_scr_cfg_addr(link, sc_reg);
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  162  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  163  	pci_write_config_dword(pdev, cfg_addr, val);
8e5443a0 drivers/ata/sata_sis.c  Tejun Heo                 2008-04-24  164  	return 0;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  165  }
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  166  
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  167  static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  168  {
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  169  	struct ata_port *ap = link->ap;
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  170  	void __iomem *base = ap->ioaddr.scr_addr + link->pmp * 0x10;
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  171  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  172  	if (sc_reg > SCR_CONTROL)
da3dbb17 drivers/ata/sata_sis.c  Tejun Heo                 2007-07-16  173  		return -EINVAL;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  174  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  175  	if (ap->flags & SIS_FLAG_CFGSCR)
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  176  		return sis_scr_cfg_read(link, sc_reg, val);
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  177  
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  178  	*val = ioread32(base + sc_reg * 4);
da3dbb17 drivers/ata/sata_sis.c  Tejun Heo                 2007-07-16  179  	return 0;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  180  }
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  181  
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  182  static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  183  {
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  184  	struct ata_port *ap = link->ap;
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  185  	void __iomem *base = ap->ioaddr.scr_addr + link->pmp * 0x10;
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  186  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  187  	if (sc_reg > SCR_CONTROL)
da3dbb17 drivers/ata/sata_sis.c  Tejun Heo                 2007-07-16  188  		return -EINVAL;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  189  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  190  	if (ap->flags & SIS_FLAG_CFGSCR)
82ef04fb drivers/ata/sata_sis.c  Tejun Heo                 2008-07-31  191  		return sis_scr_cfg_write(link, sc_reg, val);
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  192  
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  193  	iowrite32(val, base + (sc_reg * 4));
da3dbb17 drivers/ata/sata_sis.c  Tejun Heo                 2007-07-16  194  	return 0;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  195  }
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  196  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  197  static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  198  {
9a829ccf drivers/ata/sata_sis.c  Tejun Heo                 2007-04-17  199  	struct ata_port_info pi = sis_port_info;
ddfc87a0 drivers/ata/sata_sis.c  Uwe Koziolek              2007-05-25  200  	const struct ata_port_info *ppi[] = { &pi, &pi };
9a829ccf drivers/ata/sata_sis.c  Tejun Heo                 2007-04-17  201  	struct ata_host *host;
4adccf6f drivers/ata/sata_sis.c  Uwe Koziolek              2006-11-08  202  	u32 genctl, val;
f2c853bc drivers/scsi/sata_sis.c Arnaud Patard             2005-09-07  203  	u8 pmr;
3f3e7313 drivers/ata/sata_sis.c  Uwe Koziolek              2006-12-04  204  	u8 port2_start = 0x20;
72fee382 drivers/ata/sata_sis.c  Tejun Heo                 2009-09-01  205  	int i, rc;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  206  
06296a1e drivers/ata/sata_sis.c  Joe Perches               2011-04-15  207  	ata_print_version_once(&pdev->dev, DRV_VERSION);
a9524a76 drivers/scsi/sata_sis.c Jeff Garzik               2005-10-30  208  
24dc5f33 drivers/ata/sata_sis.c  Tejun Heo                 2007-01-20  209  	rc = pcim_enable_device(pdev);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  210  	if (rc)
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  211  		return rc;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  212  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  213  	/* check and see if the SCRs are in IO space or PCI cfg space */
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  214  	pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  215  	if ((genctl & GENCTL_IOMAPPED_SCR) == 0)
cf0e812f drivers/ata/sata_sis.c  Tejun Heo                 2006-10-27  216  		pi.flags |= SIS_FLAG_CFGSCR;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  217  
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  218  	/* if hardware thinks SCRs are in IO space, but there are
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  219  	 * no IO resources assigned, change to PCI cfg space.
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  220  	 */
cf0e812f drivers/ata/sata_sis.c  Tejun Heo                 2006-10-27  221  	if ((!(pi.flags & SIS_FLAG_CFGSCR)) &&
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  222  	    ((pci_resource_start(pdev, SIS_SCR_PCI_BAR) == 0) ||
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16 @223  	     (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) {
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  224  		genctl &= ~GENCTL_IOMAPPED_SCR;
^1da177e drivers/scsi/sata_sis.c Linus Torvalds            2005-04-16  225  		pci_write_config_dword(pdev, SIS_GENCTL, genctl);
cf0e812f drivers/ata/sata_sis.c  Tejun Heo                 2006-10-27  226  		pi.flags |= SIS_FLAG_CFGSCR;

:::::: The code at line 223 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds at ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds at ppc970.osdl.org>

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