From 0e2bd50b393084a338a6a21063ef012c5a2720fb Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 18 Jan 2013 10:48:25 -0700 Subject: [PATCH] staging: comedi: addi_apci_16xx: cleanup addi_find_boardinfo() This function was originally in the addi-data "common" code and required using pointer math to access the boardinfo data using the void * 'dev->driver->board_name'. Now that the function is local to this driver we can access the boardinfo directly and remove the pointer math. Rename the function so it has namespace associated with this driver. Also, for aesthetic reasons, globally rename the local variable used for the boardinfo pointer from 'this_board' to 'board', Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/addi_apci_16xx.c | 32 ++++++++++++------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c index 23aafe2c6f82..899dae14a75c 100644 --- a/drivers/staging/comedi/drivers/addi_apci_16xx.c +++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c @@ -26,19 +26,17 @@ static const struct apci16xx_boardinfo apci16xx_boardtypes[] = { }, }; -static const void *addi_find_boardinfo(struct comedi_device *dev, - struct pci_dev *pcidev) +static const void *apci16xx_find_boardinfo(struct comedi_device *dev, + struct pci_dev *pcidev) { - const void *p = dev->driver->board_name; - const struct apci16xx_boardinfo *this_board; + const struct apci16xx_boardinfo *board; int i; - for (i = 0; i < dev->driver->num_names; i++) { - this_board = p; - if (this_board->vendor == pcidev->vendor && - this_board->device == pcidev->device) - return this_board; - p += dev->driver->offset; + for (i = 0; i < ARRAY_SIZE(apci16xx_boardtypes); i++) { + board = &apci16xx_boardtypes[i]; + if (board->vendor == pcidev->vendor && + board->device == pcidev->device) + return board; } return NULL; } @@ -47,16 +45,16 @@ static int apci16xx_auto_attach(struct comedi_device *dev, unsigned long context_unused) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); - const struct apci16xx_boardinfo *this_board; + const struct apci16xx_boardinfo *board; struct addi_private *devpriv; struct comedi_subdevice *s; int ret; - this_board = addi_find_boardinfo(dev, pcidev); - if (!this_board) + board = apci16xx_find_boardinfo(dev, pcidev); + if (!board) return -ENODEV; - dev->board_ptr = this_board; - dev->board_name = this_board->name; + dev->board_ptr = board; + dev->board_name = board->name; devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); if (!devpriv) @@ -77,10 +75,10 @@ static int apci16xx_auto_attach(struct comedi_device *dev, s = &dev->subdevices[0]; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_WRITEABLE | SDF_READABLE; - s->n_chan = this_board->n_chan; + s->n_chan = board->n_chan; s->maxdata = 1; s->io_bits = 0; /* all bits input */ - s->len_chanlist = this_board->n_chan; + s->len_chanlist = board->n_chan; s->range_table = &range_digital; s->insn_config = i_APCI16XX_InsnConfigInitTTLIO; s->insn_bits = i_APCI16XX_InsnBitsReadTTLIO; -- 2.11.0