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greybus: loopback: Ensure we reset stats once and once only 

9445c54c ('greybus/loopback: drop bus aggregate calculation') removed the
aggregation of data in-kernel but instead of dropping the reset of
aggregate stastics, converted that reset into a second reset of the
connection-level stats. While this doesn't result in anything bad it's
also definitely a dumb thing to be doing, so, drop it now.

Also ensure we reset the bridge-specific tracking variables at least once.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Bryan O'Donoghue 2015-12-07 01:59:08 +00:00 committed by Greg Kroah-Hartman
parent b36f04fa94
commit f42a6891d1
1 changed files with 3 additions and 13 deletions
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16
drivers/staging/greybus/loopback.c
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@ -837,19 +837,9 @@ static void gb_loopback_reset_stats(struct gb_loopback *gb)
memcpy(&gb->gpbridge_firmware_latency, &reset,
sizeof(struct gb_loopback_stats));
/* Set values to report min/max timeout to user-space */
gb->timeout_min = jiffies_to_usecs(GB_LOOPBACK_TIMEOUT_MIN);
gb->timeout_max = jiffies_to_usecs(GB_LOOPBACK_TIMEOUT_MAX);
/* Reset aggregate stats */
memcpy(&gb->latency, &reset, sizeof(struct gb_loopback_stats));
memcpy(&gb->throughput, &reset, sizeof(struct gb_loopback_stats));
memcpy(&gb->requests_per_second, &reset,
sizeof(struct gb_loopback_stats));
memcpy(&gb->apbridge_unipro_latency, &reset,
sizeof(struct gb_loopback_stats));
memcpy(&gb->gpbridge_firmware_latency, &reset,
sizeof(struct gb_loopback_stats));
/* Should be initialized at least once per transaction set */
gb->apbridge_latency_ts = 0;
gb->gpbridge_latency_ts = 0;
}
static void gb_loopback_update_stats(struct gb_loopback_stats *stats, u32 val)