From d877269ed3c539b4cfcd738b5e705267d95bd5fd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 May 2012 16:59:57 -0700 Subject: [PATCH] staging: comedi: remove this_board macro in the pcl726 driver The 'this_board' macro depends on having a local variable with a magic name. The CodingStyle document suggests not doing this to avoid confusion. Remove the macro and use the comedi_board() inline helper to get the dev->board_ptr information. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Mori Hess Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/pcl726.c | 39 ++++++++++++++----------- 1 file changed, 22 insertions(+), 17 deletions(-) diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c index d25c30c694e3..e9449bb2ba00 100644 --- a/drivers/staging/comedi/drivers/pcl726.c +++ b/drivers/staging/comedi/drivers/pcl726.c @@ -145,8 +145,6 @@ static const struct pcl726_board boardtypes[] = { &rangelist_728[0],}, }; -#define this_board ((const struct pcl726_board *)dev->board_ptr) - struct pcl726_private { int bipolar[12]; @@ -197,11 +195,13 @@ static int pcl726_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + const struct pcl726_board *board = comedi_board(dev); + if (insn->n != 2) return -EINVAL; - data[1] = inb(dev->iobase + this_board->di_lo) | - (inb(dev->iobase + this_board->di_hi) << 8); + data[1] = inb(dev->iobase + board->di_lo) | + (inb(dev->iobase + board->di_hi) << 8); return 2; } @@ -210,6 +210,8 @@ static int pcl726_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + const struct pcl726_board *board = comedi_board(dev); + if (insn->n != 2) return -EINVAL; @@ -218,9 +220,9 @@ static int pcl726_do_insn_bits(struct comedi_device *dev, s->state |= data[0] & data[1]; } if (data[1] & 0x00ff) - outb(s->state & 0xff, dev->iobase + this_board->do_lo); + outb(s->state & 0xff, dev->iobase + board->do_lo); if (data[1] & 0xff00) - outb((s->state >> 8), dev->iobase + this_board->do_hi); + outb((s->state >> 8), dev->iobase + board->do_hi); data[1] = s->state; @@ -229,6 +231,7 @@ static int pcl726_do_insn_bits(struct comedi_device *dev, static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct pcl726_board *board = comedi_board(dev); struct comedi_subdevice *s; unsigned long iobase; unsigned int iorange; @@ -238,9 +241,9 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) #endif iobase = it->options[0]; - iorange = this_board->io_range; + iorange = board->io_range; printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor, - this_board->name, iobase); + board->name, iobase); if (!request_region(iobase, iorange, "pcl726")) { printk(KERN_WARNING "I/O port conflict\n"); return -EIO; @@ -248,7 +251,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->iobase = iobase; - dev->board_name = this_board->name; + dev->board_name = board->name; ret = alloc_private(dev, sizeof(struct pcl726_private)); if (ret < 0) @@ -297,23 +300,23 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* ao */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE | SDF_GROUND; - s->n_chan = this_board->n_aochan; + s->n_chan = board->n_aochan; s->maxdata = 0xfff; s->len_chanlist = 1; s->insn_write = pcl726_ao_insn; s->insn_read = pcl726_ao_insn_read; s->range_table_list = devpriv->rangelist; - for (i = 0; i < this_board->n_aochan; i++) { + for (i = 0; i < board->n_aochan; i++) { int j; j = it->options[2 + 1]; - if ((j < 0) || (j >= this_board->num_of_ranges)) { + if ((j < 0) || (j >= board->num_of_ranges)) { printk ("Invalid range for channel %d! Must be 0<=%d<%d\n", - i, j, this_board->num_of_ranges - 1); + i, j, board->num_of_ranges - 1); j = 0; } - devpriv->rangelist[i] = this_board->range_type_list[j]; + devpriv->rangelist[i] = board->range_type_list[j]; if (devpriv->rangelist[i]->range[0].min == -devpriv->rangelist[i]->range[0].max) devpriv->bipolar[i] = 1; /* bipolar range */ @@ -321,7 +324,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 1; /* di */ - if (!this_board->have_dio) { + if (!board->have_dio) { s->type = COMEDI_SUBD_UNUSED; } else { s->type = COMEDI_SUBD_DI; @@ -335,7 +338,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 2; /* do */ - if (!this_board->have_dio) { + if (!board->have_dio) { s->type = COMEDI_SUBD_UNUSED; } else { s->type = COMEDI_SUBD_DO; @@ -352,12 +355,14 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void pcl726_detach(struct comedi_device *dev) { + const struct pcl726_board *board = comedi_board(dev); + #ifdef ACL6126_IRQ if (dev->irq) free_irq(dev->irq, dev); #endif if (dev->iobase) - release_region(dev->iobase, this_board->io_range); + release_region(dev->iobase, board->io_range); } static struct comedi_driver pcl726_driver = { -- 2.20.1