diff options
| author |   Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2010-07-19 13:45:00 -0500 |
|---|---|---|
| committer |   Jens Axboe <jaxboe@fusionio.com> | 2010-08-07 18:52:10 +0200 |
| commit | dd9c426e92d0cbd710c8df5b84afe9a2eeda3918 (patch) | |
| tree | 55e41244dc36cf448112131d657e33547bc112f8 /drivers/block | |
| parent | cciss: factor out cciss_lookup_board_id (diff) | |
| download | linux-dev-dd9c426e92d0cbd710c8df5b84afe9a2eeda3918.tar.xz linux-dev-dd9c426e92d0cbd710c8df5b84afe9a2eeda3918.zip | |
cciss: factor out cciss_board_disabled
cciss: factor out cciss_board_disabled
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/cciss.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index d4167c29213d..808d2a5b46bb 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4002,9 +4002,16 @@ static int __devinit cciss_lookup_board_id(struct pci_dev *pdev, u32 *board_id) return -ENODEV; } +static inline bool cciss_board_disabled(ctlr_info_t *h) +{ + u16 command; + + (void) pci_read_config_word(h->pdev, PCI_COMMAND, &command); + return ((command & PCI_COMMAND_MEMORY) == 0); +} + static int __devinit cciss_pci_init(ctlr_info_t *c) { - ushort command; __u32 scratchpad = 0; __u64 cfg_offset; __u32 cfg_base_addr; @@ -4018,15 +4025,11 @@ static int __devinit cciss_pci_init(ctlr_info_t *c) c->product_name = products[prod_index].product_name; c->access = *(products[prod_index].access); - /* check to see if controller has been disabled */ - /* BEFORE trying to enable it */ - (void)pci_read_config_word(c->pdev, PCI_COMMAND, &command); - if (!(command & 0x02)) { + if (cciss_board_disabled(c)) { printk(KERN_WARNING "cciss: controller appears to be disabled\n"); return -ENODEV; } - err = pci_enable_device(c->pdev); if (err) { printk(KERN_ERR "cciss: Unable to Enable PCI device\n"); |