* [PATCH 28/36] staging: comedi: cb_pcidas: remove 'volatile' on private data variables
@ 2012-06-27 1:06 H Hartley Sweeten
2012-06-27 9:34 ` Ian Abbott
0 siblings, 1 reply; 2+ messages in thread
From: H Hartley Sweeten @ 2012-06-27 1:06 UTC (permalink / raw)
To: Linux Kernel; +Cc: devel, abbotti, fmhess, gregkh
As indicated by checkpatch.pl, "WARNING: Use of volatile is usually
wrong: ...". The variables in the private data that are marked
volatile don't need to be. Remove the volatile.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/comedi/drivers/cb_pcidas.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 95ce546..eba39b4 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -357,16 +357,16 @@ struct cb_pcidas_private {
/* divisors of master clock for analog input pacing */
unsigned int divisor1;
unsigned int divisor2;
- volatile unsigned int count; /* number of analog input samples remaining */
- volatile unsigned int adc_fifo_bits; /* bits to write to interrupt/adcfifo register */
- volatile unsigned int s5933_intcsr_bits; /* bits to write to amcc s5933 interrupt control/status register */
- volatile unsigned int ao_control_bits; /* bits to write to ao control and status register */
+ unsigned int count; /* number of analog input samples remaining */
+ unsigned int adc_fifo_bits; /* bits to write to interrupt/adcfifo register */
+ unsigned int s5933_intcsr_bits; /* bits to write to amcc s5933 interrupt control/status register */
+ unsigned int ao_control_bits; /* bits to write to ao control and status register */
short ai_buffer[AI_BUFFER_SIZE];
short ao_buffer[AO_BUFFER_SIZE];
/* divisors of master clock for analog output pacing */
unsigned int ao_divisor1;
unsigned int ao_divisor2;
- volatile unsigned int ao_count; /* number of analog output samples remaining */
+ unsigned int ao_count; /* number of analog output samples remaining */
int ao_value[2]; /* remember what the analog outputs are set to, to allow readback */
unsigned int caldac_value[NUM_CHANNELS_8800]; /* for readback of caldac */
unsigned int trimpot_value[NUM_CHANNELS_8402]; /* for readback of trimpot */
--
1.7.11
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 28/36] staging: comedi: cb_pcidas: remove 'volatile' on private data variables
2012-06-27 1:06 [PATCH 28/36] staging: comedi: cb_pcidas: remove 'volatile' on private data variables H Hartley Sweeten
@ 2012-06-27 9:34 ` Ian Abbott
0 siblings, 0 replies; 2+ messages in thread
From: Ian Abbott @ 2012-06-27 9:34 UTC (permalink / raw)
To: H Hartley Sweeten
Cc: Linux Kernel, devel@driverdev.osuosl.org, Ian Abbott,
fmhess@users.sourceforge.net, gregkh@linuxfoundation.org
On 2012-06-27 02:06, H Hartley Sweeten wrote:
> As indicated by checkpatch.pl, "WARNING: Use of volatile is usually
> wrong: ...". The variables in the private data that are marked
> volatile don't need to be. Remove the volatile.
Yes, looks good!
Reviewed-by: Ian Abbott <abbbotti@mev.co.uk>
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@mev.co.uk> )=-
-=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
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