xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: ipv6: mld: get rid of MLDV2_MRC and simplify calculation

Browse Source 
Get rid of MLDV2_MRC and use our new macros for mantisse and
exponent to calculate Maximum Response Delay out of the Maximum
Response Code.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2013-09-04 00:19:39 +02:00
committed by David S. Miller
parent 6c567b78c8
commit e3f5b17047
3 changed files with 23 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
net/ipv6/mcast.c
View File

@@ -1195,20 +1195,7 @@ static void mld_update_qri(struct inet6_dev *idev,
* - 5.1.3. Maximum Response Code
* - 9.3. Query Response Interval
*/
unsigned long mc_qri, mc_mrc = ntohs(mlh2->mld2q_mrc);
if (mc_mrc < 32768) {
mc_qri = mc_mrc;
} else {
unsigned long mc_man, mc_exp;
mc_exp = MLDV2_MRC_EXP(mc_mrc);
mc_man = MLDV2_MRC_MAN(mc_mrc);
mc_qri = (mc_man | 0x1000) << (mc_exp + 3);
}
idev->mc_qri = msecs_to_jiffies(mc_qri);
idev->mc_qri = msecs_to_jiffies(mldv2_mrc(mlh2));
}
/* called with rcu_read_lock() */
@@ -1277,8 +1264,7 @@ int igmp6_event_query(struct sk_buff *skb)
mlh2 = (struct mld2_query *)skb_transport_header(skb);
max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mlh2->mld2q_mrc))), 1UL);
max_delay = max(msecs_to_jiffies(mldv2_mrc(mlh2)), 1UL);
idev->mc_maxdelay = max_delay;
mld_update_qrv(idev, mlh2);