From 3eff01744009de100f03a1dc2e3d5f98da2235e5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 Jul 2012 18:14:27 -0700 Subject: [PATCH] staging: comedi: dmm32at: remove devpriv macro The 'devpriv' macro relies on a local variable having a specific name and yields a pointer derived from that local variable. Replace the macro with a local variable where used. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/dmm32at.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c index 1d21e2291315..f0221e9b3623 100644 --- a/drivers/staging/comedi/drivers/dmm32at.c +++ b/drivers/staging/comedi/drivers/dmm32at.c @@ -176,12 +176,6 @@ struct dmm32at_private { }; -/* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct dmm32at_private *)dev->private) - /* * "instructions" read/write data in "one-shot" or "software-triggered" * mode. @@ -494,6 +488,7 @@ static void dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec) static int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dmm32at_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int i, range; unsigned char chanlo, chanhi, status; @@ -566,17 +561,20 @@ static int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int dmm32at_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dmm32at_private *devpriv = dev->private; + devpriv->ai_scans_left = 1; return 0; } static irqreturn_t dmm32at_isr(int irq, void *d) { + struct comedi_device *dev = d; + struct dmm32at_private *devpriv = dev->private; unsigned char intstat; unsigned int samp; unsigned short msb, lsb; int i; - struct comedi_device *dev = d; if (!dev->attached) { comedi_error(dev, "spurious interrupt"); @@ -622,6 +620,7 @@ static int dmm32at_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dmm32at_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); unsigned char hi, lo, status; @@ -666,6 +665,7 @@ static int dmm32at_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dmm32at_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -684,6 +684,7 @@ static int dmm32at_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dmm32at_private *devpriv = dev->private; unsigned char diobits; /* The insn data is a mask in data[0] and the new data @@ -735,6 +736,7 @@ static int dmm32at_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dmm32at_private *devpriv = dev->private; unsigned char chanbit; int chan = CR_CHAN(insn->chanspec); @@ -772,6 +774,7 @@ static int dmm32at_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct dmm32at_board *board = comedi_board(dev); + struct dmm32at_private *devpriv; int ret; struct comedi_subdevice *s; unsigned char aihi, ailo, fifostat, aistat, intstat, airback; @@ -854,8 +857,9 @@ static int dmm32at_attach(struct comedi_device *dev, * Allocate the private structure area. alloc_private() is a * convenient macro defined in comedidev.h. */ - if (alloc_private(dev, sizeof(struct dmm32at_private)) < 0) + if (alloc_private(dev, sizeof(*devpriv)) < 0) return -ENOMEM; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 3); if (ret)