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staging: dgnc: Remove driver-wide polling counter variable 

The polling counter variable is only exposed via sysfs and has no other
purpose.

Now, since the polling shall be implemented as a board specific feature
rather than being global in the driver this counter is obsolete.

Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konrad Zapalowicz 2014-08-16 16:58:06 +02:00 committed by Greg Kroah-Hartman
parent 1d8c5aa329
commit 3599abafcc
3 changed files with 0 additions and 14 deletions
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3
drivers/staging/dgnc/dgnc_driver.c
View File

@ -90,7 +90,6 @@ static const struct file_operations dgnc_BoardFops = {
uint dgnc_NumBoards;
struct dgnc_board *dgnc_Board[MAXBOARDS];
DEFINE_SPINLOCK(dgnc_global_lock);
ulong dgnc_poll_counter;
uint dgnc_Major;
int dgnc_poll_tick = 20; /* Poll interval - 20 ms */
@ -736,8 +735,6 @@ static void dgnc_poll_handler(ulong dummy)
int i;
unsigned long new_time;
dgnc_poll_counter++;
/* Go thru each board, kicking off a tasklet for each if needed */
for (i = 0; i < dgnc_NumBoards; i++) {
brd = dgnc_Board[i];

1
drivers/staging/dgnc/dgnc_driver.h
View File

@ -492,7 +492,6 @@ extern int dgnc_trcbuf_size; /* Size of the ringbuffer */
extern spinlock_t dgnc_global_lock; /* Driver global spinlock */
extern uint dgnc_NumBoards; /* Total number of boards */
extern struct dgnc_board *dgnc_Board[MAXBOARDS]; /* Array of board structs */
extern ulong dgnc_poll_counter; /* Times the poller has run */
extern char *dgnc_state_text[]; /* Array of state text */
#endif

10
drivers/staging/dgnc/dgnc_sysfs.c
View File

@ -63,14 +63,6 @@ static ssize_t dgnc_driver_maxboards_show(struct device_driver *ddp, char *buf)
}
static DRIVER_ATTR(maxboards, S_IRUSR, dgnc_driver_maxboards_show, NULL);
static ssize_t dgnc_driver_pollcounter_show(struct device_driver *ddp, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%ld\n", dgnc_poll_counter);
}
static DRIVER_ATTR(pollcounter, S_IRUSR, dgnc_driver_pollcounter_show, NULL);
static ssize_t dgnc_driver_debug_show(struct device_driver *ddp, char *buf)
{
return snprintf(buf, PAGE_SIZE, "0x%x\n", dgnc_debug);
@ -121,7 +113,6 @@ void dgnc_create_driver_sysfiles(struct pci_driver *dgnc_driver)
rc |= driver_create_file(driverfs, &driver_attr_debug);
rc |= driver_create_file(driverfs, &driver_attr_rawreadok);
rc |= driver_create_file(driverfs, &driver_attr_pollrate);
rc |= driver_create_file(driverfs, &driver_attr_pollcounter);
if (rc) {
printk(KERN_ERR "DGNC: sysfs driver_create_file failed!\n");
}
@ -137,7 +128,6 @@ void dgnc_remove_driver_sysfiles(struct pci_driver *dgnc_driver)
driver_remove_file(driverfs, &driver_attr_debug);
driver_remove_file(driverfs, &driver_attr_rawreadok);
driver_remove_file(driverfs, &driver_attr_pollrate);
driver_remove_file(driverfs, &driver_attr_pollcounter);
}