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authorTina Ruchandani <ruchandani.tina@gmail.com>2015-05-31 04:17:06 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-06-09 21:09:51 -0300
commit9056a23ba19d911d4a079b8ca543fb8ebffa7c56 (patch)
treec4c4317831ba2bf1e12f04fe689715f2c7378677 /drivers/media/dvb-frontends
parentd3525b632a0b5e113fb78b7db84598e082cf903b (diff)
[media] dvb-frontend: Replace timeval with ktime_t
struct timeval uses a 32-bit seconds representation which will overflow in the year 2038 and beyond. This patch replaces the usage of struct timeval with ktime_t which is a 64-bit timestamp and is year 2038 safe. This patch is part of a larger attempt to remove all instances of 32-bit timekeeping variables (timeval, timespec, time_t) which are not year 2038 safe, from the kernel. [mchehab@osg.samsung.com: add a missing parenthesis, breaking compilation] Suggested-by: Arnd Bergmann <arndb@arndb.de> Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/stv0299.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/media/dvb-frontends/stv0299.c b/drivers/media/dvb-frontends/stv0299.c
index 0ca5d9f0d851..a8177807fb65 100644
--- a/drivers/media/dvb-frontends/stv0299.c
+++ b/drivers/media/dvb-frontends/stv0299.c
@@ -44,6 +44,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
@@ -407,8 +408,8 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long
u8 lv_mask = 0x40;
u8 last = 1;
int i;
- struct timeval nexttime;
- struct timeval tv[10];
+ ktime_t nexttime;
+ ktime_t tv[10];
reg0x08 = stv0299_readreg (state, 0x08);
reg0x0c = stv0299_readreg (state, 0x0c);
@@ -421,7 +422,7 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long
if (debug_legacy_dish_switch)
printk ("%s switch command: 0x%04lx\n",__func__, cmd);
- do_gettimeofday (&nexttime);
+ nexttime = ktime_get_real();
if (debug_legacy_dish_switch)
tv[0] = nexttime;
stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
@@ -430,7 +431,7 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long
for (i=0; i<9; i++) {
if (debug_legacy_dish_switch)
- do_gettimeofday (&tv[i+1]);
+ tv[i+1] = ktime_get_real();
if((cmd & 0x01) != last) {
/* set voltage to (last ? 13V : 18V) */
stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
@@ -446,7 +447,8 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long
printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
__func__, fe->dvb->num);
for (i = 1; i < 10; i++)
- printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
+ printk("%d: %d\n", i,
+ (int) ktime_us_delta(tv[i], tv[i-1]));
}
return 0;