- 28 Jan, 2008 40 commits
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Helmut Schaa authored
This patch fixes a problem with rx handling on multiple interfaces. Especially when using hardware-scanning and a wireless driver (i.e. iwlwifi) which is able to receive data while scanning. The rx handlers can modify the skb and the frame control field (see ieee80211_rx_h_remove_qos_control) but since every interface gets its own copy of the skb each should get its own copy of rx.fc too. In my case the wlan0-interface did not remove the qos-control from the frame because the corresponding flag in rx.fc was already removed while processing the frame on the master interface. Therefore somehow corrupted frames were passed to the userspace. Signed-off-by:
Helmut Schaa <hschaa@suse.de> Acked-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
xfrm_state_clone() is not used outside of net/xfrm/xfrm_state.c There is no need to export it. Spoted by sparse checker. CHECK net/xfrm/xfrm_state.c net/xfrm/xfrm_state.c:1103:19: warning: symbol 'xfrm_state_clone' was not declared. Should it be static? Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Eric Dumazet authored
CHECK net/packet/af_packet.c net/packet/af_packet.c:1876:14: warning: context imbalance in 'packet_seq_start' - wrong count at exit net/packet/af_packet.c:1888:13: warning: context imbalance in 'packet_seq_stop' - unexpected unlock Signed-off-by:
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Julia Lawall authored
The function sockfd_lookup uses fget on the value that is stored in the file field of the returned structure, so fput should ultimately be applied to this value. This can be done directly, but it seems better to use the specific macro sockfd_put, which does the same thing. The problem was fixed using the following semantic patch. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression s; @@ s = sockfd_lookup(...) ... + sockfd_put(s); ?- fput(s->file); // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Rami Rosen authored
The info placeholder member of dst_entry seems to be unused in the network stack. Signed-off-by:
Rami Rosen <ramirose@gmail.com> Signed-off-by:
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WANG Cong authored
Since __xfrm_policy_destroy is used to destory the resources allocated by xfrm_policy_alloc. So using the name __xfrm_policy_destroy is not correspond with xfrm_policy_alloc. Rename it to xfrm_policy_destroy. And along with some instances that call xfrm_policy_alloc but not using xfrm_policy_destroy to destroy the resource, fix them. Signed-off-by:
WANG Cong <xiyou.wangcong@gmail.com> Acked-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Masahide NAKAMURA authored
o Increment PolError counter when flow_cache_lookup() returns errored pointer. o Increment NoStates counter at larval-drop. Signed-off-by:
Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by:
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Ilpo Järvinen authored
It seems that ip_build_xmit is no longer used in here and ip_append_data is used. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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Ilpo Järvinen authored
Without a number of CONFIG.*DEBUG: net/dccp/ccids/ccid3.c: ccid3_hc_tx_update_x | -170 ccid3_hc_tx_packet_sent | -175 ccid3_hc_tx_packet_recv | -169 ccid3_hc_tx_no_feedback_timer | -192 ccid3_hc_tx_send_packet | -144 5 functions changed, 850 bytes removed, diff: -850 net/dccp/ccids/ccid3.c: ccid3_update_send_interval | +191 1 function changed, 191 bytes added, diff: +191 net/dccp/ccids/ccid3.o: 6 functions changed, 191 bytes added, 850 bytes removed, diff: -659 Signed-off-by:
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Ilpo Järvinen authored
net/xfrm/xfrm_state.c: xfrm_audit_state_delete | -589 xfrm_replay_check | -542 xfrm_audit_state_icvfail | -520 xfrm_audit_state_add | -589 xfrm_audit_state_replay_overflow | -523 xfrm_audit_state_notfound_simple | -509 xfrm_audit_state_notfound | -521 7 functions changed, 3793 bytes removed, diff: -3793 net/xfrm/xfrm_state.c: xfrm_audit_helper_pktinfo | +522 xfrm_audit_helper_sainfo | +598 2 functions changed, 1120 bytes added, diff: +1120 net/xfrm/xfrm_state.o: 9 functions changed, 1120 bytes added, 3793 bytes removed, diff: -2673 Signed-off-by:
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Ilpo Järvinen authored
net/ipv4/ipvs/ip_vs_xmit.c: ip_vs_icmp_xmit | -638 ip_vs_tunnel_xmit | -674 ip_vs_nat_xmit | -716 ip_vs_dr_xmit | -682 4 functions changed, 2710 bytes removed, diff: -2710 net/ipv4/ipvs/ip_vs_xmit.c: __ip_vs_get_out_rt | +595 1 function changed, 595 bytes added, diff: +595 net/ipv4/ipvs/ip_vs_xmit.o: 5 functions changed, 595 bytes added, 2710 bytes removed, diff: -2115 Without some CONFIG.*DEBUGs: net/ipv4/ipvs/ip_vs_xmit.o: 5 functions changed, 383 bytes added, 1513 bytes removed, diff: -1130 Signed-off-by:
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Ilpo Järvinen authored
/me awards the bloatiest-of-all-net/-.c-code award to nf_conntrack_netlink.c, congratulations to all the authors :-/! Hall of (unquestionable) fame (measured per inline, top 10 under net/): -4496 ctnetlink_parse_tuple netfilter/nf_conntrack_netlink.c -2165 ctnetlink_dump_tuples netfilter/nf_conntrack_netlink.c -2115 __ip_vs_get_out_rt ipv4/ipvs/ip_vs_xmit.c -1924 xfrm_audit_helper_pktinfo xfrm/xfrm_state.c -1799 ctnetlink_parse_tuple_proto netfilter/nf_conntrack_netlink.c -1268 ctnetlink_parse_tuple_ip netfilter/nf_conntrack_netlink.c -1093 ctnetlink_exp_dump_expect netfilter/nf_conntrack_netlink.c -1060 void ccid3_update_send_interval dccp/ccids/ccid3.c -983 ctnetlink_dump_tuples_proto netfilter/nf_conntrack_netlink.c -827 ctnetlink_exp_dump_tuple netfilter/nf_conntrack_netlink.c (i386 / gcc (GCC) 4.1.2 20070626 (Red Hat 4.1.2-13) / allyesconfig except CONFIG_FORCED_INLINING) ...and I left < 200 byte gains as future work item. After iterative inline removal, I finally have this: net/netfilter/nf_conntrack_netlink.c: ctnetlink_exp_fill_info | -1104 ctnetlink_new_expect | -1572 ctnetlink_fill_info | -1303 ctnetlink_new_conntrack | -2230 ctnetlink_get_expect | -341 ctnetlink_del_expect | -352 ctnetlink_expect_event | -1110 ctnetlink_conntrack_event | -1548 ctnetlink_del_conntrack | -729 ctnetlink_get_conntrack | -728 10 functions changed, 11017 bytes removed, diff: -11017 net/netfilter/nf_conntrack_netlink.c: ctnetlink_parse_tuple | +419 dump_nat_seq_adj | +183 ctnetlink_dump_counters | +166 ctnetlink_dump_tuples | +261 ctnetlink_exp_dump_expect | +633 ctnetlink_change_status | +460 6 functions changed, 2122 bytes added, diff: +2122 net/netfilter/nf_conntrack_netlink.o: 16 functions changed, 2122 bytes added, 11017 bytes removed, diff: -8895 Without a number of CONFIG.*DEBUGs, I got this: net/netfilter/nf_conntrack_netlink.o: 16 functions changed, 2122 bytes added, 11029 bytes removed, diff: -8907 Signed-off-by:
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Eric Dumazet authored
Previous NETNS patches broke CONFIG_SYSCTL=n case Signed-off-by:
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Li Zefan authored
- 'cb' is a fake struct member. In a previous patch struct cn_callback was renamed to cn_callback_id, so 'cb' should have been deleted at that time. - 'nls' isn't used and is redundant, we can retrieve this data through cn_callback_entry.pdev->nls. - 'seq' and 'group' should be u32, as they are declared to be u32 in other places. Signed-off-by:
Li Zefan <lizf@cn.fujitsu.com> Signed-off-by:
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Li Zefan authored
Struct member netlink_groups is never used, and I don't see how it can be useful. Signed-off-by:
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Li Zefan authored
- __cn_rx_skb() does nothing but calls cn_call_callback(), it doesn't check skb and msg sizes as the comment suggests, but cn_rx_skb() checks those sizes. - In cn_rx_skb() Local variable 'len' is not used. 'len' is probably intended to be passed to skb_pull(), but here skb_pull() is not needed, instead skb_free() is called. Signed-off-by:
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Li Zefan authored
Each entry in the list has a unique id, so just break out of the loop if the matched id is found. Signed-off-by:
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Eric Dumazet authored
CHECK net/ipv4/icmp.c net/ipv4/icmp.c:249:13: warning: context imbalance in 'icmp_xmit_unlock' - unexpected unlock net/ipv4/icmp.c:376:13: warning: context imbalance in 'icmp_reply' - different lock contexts for basic block net/ipv4/icmp.c:430:6: warning: context imbalance in 'icmp_send' - different lock contexts for basic block Solution is to declare both icmp_xmit_lock() and icmp_xmit_unlock() as inline Signed-off-by:
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Eric Dumazet authored
1) Cleanups (all functions are prefixed by sock_prot_inuse) sock_prot_inc_use(prot) -> sock_prot_inuse_add(prot,-1) sock_prot_dec_use(prot) -> sock_prot_inuse_add(prot,-1) sock_prot_inuse() -> sock_prot_inuse_get() New functions : sock_prot_inuse_init() and sock_prot_inuse_free() to abstract pcounter use. 2) if CONFIG_PROC_FS=n, we can zap 'inuse' member from "struct proto", since nobody wants to read the inuse value. This saves 1372 bytes on i386/SMP and some cpu cycles. Signed-off-by:
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Eric Dumazet authored
Before pushing pcounter to Linus tree, I would like to make some adjustments. Goal is to reduce kernel text size, by unlining too big functions. When a pcounter is bound to a statically defined per_cpu variable, we define two small helpers functions. (No more folding function using the fat for_each_possible_cpu(cpu) ... ) static DEFINE_PER_CPU(int, NAME##_pcounter_values); static void NAME##_pcounter_add(struct pcounter *self, int val) { __get_cpu_var(NAME##_pcounter_values) += val; } static int NAME##_pcounter_getval(const struct pcounter *self, int cpu) { return per_cpu(NAME##_pcounter_values, cpu); } Fast path is therefore unchanged, while folding/alloc/free is now unlined. This saves 228 bytes on i386 Signed-off-by: -
Eric Dumazet authored
We can void divides (as seen with CONFIG_CC_OPTIMIZE_FOR_SIZE=y on x86) changing ((HZ<<idx)/4) to ((HZ/4) << idx) Signed-off-by:
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Ilpo Järvinen authored
In case of segments which are purely for control without any data (SYN/ACK/FIN/RST), many fields are set to common values in multiple places. i386 results: $ gcc --version gcc (GCC) 4.1.2 20070626 (Red Hat 4.1.2-13) $ codiff tcp_output.o.old tcp_output.o.new net/ipv4/tcp_output.c: tcp_xmit_probe_skb | -48 tcp_send_ack | -56 tcp_retransmit_skb | -79 tcp_connect | -43 tcp_send_active_reset | -35 tcp_make_synack | -42 tcp_send_fin | -48 7 functions changed, 351 bytes removed net/ipv4/tcp_output.c: tcp_init_nondata_skb | +90 1 function changed, 90 bytes added tcp_output.o.mid: 8 functions changed, 90 bytes added, 351 bytes removed, diff: -261 Signed-off-by:
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Ilpo Järvinen authored
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Ilpo Järvinen authored
Removed case indentation level & combined some nested ifs, mostly within 80 lines now. This is a leftover from indent patch, it just had to be done manually to avoid messing it up completely. Signed-off-by:
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Herbert Xu authored
Previously we made it an error on the output path if the sequence number overflowed. However we did not set the err variable accordingly. This patch sets err to -EOVERFLOW in that case. Signed-off-by:
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Eric Dumazet authored
Add __acquires() and __releases() annotations to suppress some sparse warnings. example of warnings : net/ipv4/udp.c:1555:14: warning: context imbalance in 'udp_seq_start' - wrong count at exit net/ipv4/udp.c:1571:13: warning: context imbalance in 'udp_seq_stop' - unexpected unlock Signed-off-by:
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Rami Rosen authored
[IPVS]: Remove declaration of unimplemented method and remove unused definition from include/net/ip_vs.h In include/net/ip_vs.h: - The ip_vs_secure_tcp_set() method is not implemented anywhere. - IP_VS_APP_TYPE_FTP is an unused definition. Signed-off-by:
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Rami Rosen authored
These three declarations in include/net/ip.h are not implemented anywhere: ip_mc_dropsocket(), ip_mc_dropdevice() and ip_net_unreachable(). Also, correct a comment to be "Functions provided by ip_fragment.c" (instead of by ip_fragment.o) in consistency with the other comments in this header. Signed-off-by:
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Adrian Bunk authored
This patch contains the scheduled removal of the shaper driver. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Herbert Xu authored
For five years we had two xfrm_policy_flush prototypes and every time that function's signature changed people have been diligently updating both of them without noticing :) Signed-off-by:
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Eric Dumazet authored
Avoid an expensive divide (as done in commit 18030477e70a826b91608aee40a987bbd368fec6 but lost in commit 23821d2653111d20e75472c8c5003df1a55309a8) Signed-off-by:
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Ilpo Järvinen authored
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Ilpo Järvinen authored
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Ilpo Järvinen authored
These were manually selected from indent's results which as is are too noisy to be of any use without human reason. In addition, some extra newlines between function and its comment were removed too. Signed-off-by:
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Ilpo Järvinen authored
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Ilpo Järvinen authored
The snd_up check should be enough. I suspect this has been there to provide a minor optimization in clean_rtx_queue which used to have a small if (!->sacked) block which could skip snd_up check among the other work. Signed-off-by:
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Ilpo Järvinen authored
SACK reneging can be precalculated to a FLAG in clean_rtx_queue which has the right skb looked up. This will help a bit in future because skb->sacked access will be changed eventually, changing it already won't hurt any. Signed-off-by:
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Ilpo Järvinen authored
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Ilpo Järvinen authored
There's very little need to have the packets_out incrementing in a separate function. Also name the combined function appropriately. Signed-off-by:
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Ilpo Järvinen authored
Earlier resolution for NewReno's sacked_out should now keep it small enough for this to become invariant-like check. Signed-off-by:
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