From: Paul Fulghum <paulkf@microgate.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: [patch] synclink.c add clear stats
Date: Wed, 07 Sep 2005 12:05:42 -0500 [thread overview]
Message-ID: <1126112742.3984.21.camel@deimos.microgate.com> (raw)
[patch] synclink.c add clear stats
From: Paul Fulghum <paulkf@microgate.com>
Add the ability to clear statistics.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
--- linux-2.6.13/drivers/char/synclink.c 2005-09-07 11:43:56.000000000 -0500
+++ linux-2.6.13-mg/drivers/char/synclink.c 2005-09-07 11:55:19.000000000 -0500
@@ -1814,6 +1814,8 @@ static int startup(struct mgsl_struct *
info->pending_bh = 0;
+ memset(&info->icount, 0, sizeof(info->icount));
+
init_timer(&info->tx_timer);
info->tx_timer.data = (unsigned long)info;
info->tx_timer.function = mgsl_tx_timeout;
@@ -2470,12 +2472,12 @@ static int mgsl_get_stats(struct mgsl_st
printk("%s(%d):mgsl_get_params(%s)\n",
__FILE__,__LINE__, info->device_name);
- COPY_TO_USER(err,user_icount, &info->icount, sizeof(struct mgsl_icount));
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_get_stats(%s) user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
+ if (!user_icount) {
+ memset(&info->icount, 0, sizeof(info->icount));
+ } else {
+ COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
+ if (err)
+ return -EFAULT;
}
return 0;
reply other threads:[~2005-09-07 17:05 UTC|newest]
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