#!/bin/bash
# udelay() test script
#
# Test is executed by writing and reading to /sys/kernel/debug/udelay_test
# and exercises a variety of delays to ensure that udelay() is delaying
# at least as long as requested (as compared to ktime).
#
# Copyright (C) 2014 Google, Inc.
#
# This software is licensed under the terms of the GNU General Public
# License version 2, as published by the Free Software Foundation, and
# may be copied, distributed, and modified under those terms.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
MODULE_NAME=udelay_test
UDELAY_PATH=/sys/kernel/debug/udelay_test
setup()
{
/sbin/modprobe -q $MODULE_NAME
tmp_file=`mktemp`
}
test_one()
{
delay=$1
echo $delay > $UDELAY_PATH
tee -a $tmp_file < $UDELAY_PATH
}
cleanup()
{
if [ -f $tmp_file ]; then
rm $tmp_file
fi
/sbin/modprobe -q -r $MODULE_NAME
}
trap cleanup EXIT
setup
# Delay for a variety of times.
# 1..200, 200..500 (by 10), 500..2000 (by 100)
for (( delay = 1; delay < 200; delay += 1 )); do
test_one $delay
done
for (( delay = 200; delay < 500; delay += 10 )); do
test_one $delay
done
for (( delay = 500; delay <= 2000; delay += 100 )); do
test_one $delay
done
# Search for failures
count=`grep -c FAIL $tmp_file`
if [ $? -eq "0" ]; then
echo "ERROR: $count delays failed to delay long enough"
retcode=1
fi
exit $retcode
/net-next.git/?h=nds-private-remove'>summaryrefslogtreecommitdiff
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Age | Commit message (Collapse) | Author | Files | Lines |
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If NFT_EXTHDR_F_PRESENT is set, exthdr will not copy any header field
data into *dest, but instead set it to 1 if the header is found and 0
otherwise.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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My recent change missed fact that UFO would perform a complete
UDP checksum before segmenting in frags.
In this case skb->ip_summed is set to CHECKSUM_NONE.
We need to add this valid case to skb_needs_check()
Fixes: b2504a5dbef3 ("net: reduce skb_warn_bad_offload() noise")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We added generic support for busy polling in NAPI layer in linux-4.5
No network driver uses ndo_busy_poll() anymore, we can get rid
of the pointer in struct net_device_ops, and its use in sk_busy_loop()
Saves NETIF_F_BUSY_POLL features bit.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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