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authorAya Mahfouz <mahfouz.saif.elyazal@gmail.com>2014-10-28 14:27:44 +0200
committerTakashi Iwai <tiwai@suse.de>2014-10-28 15:07:25 +0100
commit326f0480b7f8504c4f594c4f36ab7874e17780bc (patch)
tree1b44805bde641b1141c64a61cfc89d3f917c6bde
parent66797f36fd17e8975f4a3449aed895cda952c0ce (diff)
downloadlinux-326f0480b7f8504c4f594c4f36ab7874e17780bc.tar.bz2
ALSA: pcxhr: convert timeval to ktime_t
This patch is concerned with migrating the time variables in the pcxhr module found in the sound driver. The changes are concerend with the y2038 problem where timeval will overflow in the year 2038. ktime_t was used instead of timeval to get the wall time. The difference is displayed now in nanoseconds instead of microseconds. Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/pcxhr/pcxhr.c10
-rw-r--r--sound/pci/pcxhr/pcxhr_core.c10
2 files changed, 12 insertions, 8 deletions
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index b854fc5e01f5..7c33c973dbd5 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -711,8 +711,9 @@ static void pcxhr_start_linked_stream(struct pcxhr_mgr *mgr)
int playback_mask = 0;
#ifdef CONFIG_SND_DEBUG_VERBOSE
- struct timeval my_tv1, my_tv2;
- do_gettimeofday(&my_tv1);
+ ktime_t start_time, stop_time, diff_time;
+
+ start_time = ktime_get();
#endif
mutex_lock(&mgr->setup_mutex);
@@ -823,9 +824,10 @@ static void pcxhr_start_linked_stream(struct pcxhr_mgr *mgr)
mutex_unlock(&mgr->setup_mutex);
#ifdef CONFIG_SND_DEBUG_VERBOSE
- do_gettimeofday(&my_tv2);
+ stop_time = ktime_get();
+ diff_time = ktime_sub(stop_time, start_time);
dev_dbg(&mgr->pci->dev, "***TRIGGER START*** TIME = %ld (err = %x)\n",
- (long)(my_tv2.tv_usec - my_tv1.tv_usec), err);
+ (long)(ktime_to_ns(diff_time)), err);
#endif
}
diff --git a/sound/pci/pcxhr/pcxhr_core.c b/sound/pci/pcxhr/pcxhr_core.c
index a584acb61c00..181f7729d409 100644
--- a/sound/pci/pcxhr/pcxhr_core.c
+++ b/sound/pci/pcxhr/pcxhr_core.c
@@ -910,8 +910,9 @@ int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask,
int audio_mask;
#ifdef CONFIG_SND_DEBUG_VERBOSE
- struct timeval my_tv1, my_tv2;
- do_gettimeofday(&my_tv1);
+ ktime_t start_time, stop_time, diff_time;
+
+ start_time = ktime_get();
#endif
audio_mask = (playback_mask |
(capture_mask << PCXHR_PIPE_STATE_CAPTURE_OFFSET));
@@ -960,9 +961,10 @@ int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask,
return err;
}
#ifdef CONFIG_SND_DEBUG_VERBOSE
- do_gettimeofday(&my_tv2);
+ stop_time = ktime_get();
+ diff_time = ktime_sub(stop_time, start_time);
dev_dbg(&mgr->pci->dev, "***SET PIPE STATE*** TIME = %ld (err = %x)\n",
- (long)(my_tv2.tv_usec - my_tv1.tv_usec), err);
+ (long)(ktime_to_ns(diff_time)), err);
#endif
return 0;
}