- 17 Jul, 2017 18 commits
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Eric Dumazet authored
As discussed in Faro during Netfilter Workshop 2017, RB trees can be used with RCU, using a seqlock. Note that net/rxrpc/conn_service.c is already using this. This patch converts inetpeer from AVL tree to RB tree, since it allows to remove private AVL implementation in favor of shared RB code. $ size net/ipv4/inetpeer.before net/ipv4/inetpeer.after text data bss dec hex filename 3195 40 128 3363 d23 net/ipv4/inetpeer.before 1562 24 0 1586 632 net/ipv4/inetpeer.after The same technique can be used to speed up net/netfilter/nft_set_rbtree.c (removing rwlock contention in fast path) Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David Herrmann authored
All unix sockets now account inflight FDs to the respective sender. This was introduced in: commit 712f4aad Author: willy tarreau <w@1wt.eu> Date: Sun Jan 10 07:54:56 2016 +0100 unix: properly account for FDs passed over unix sockets and further refined in: commit 415e3d3e Author: Hannes Frederic Sowa <hannes@stressinduktion.org> Date: Wed Feb 3 02:11:03 2016 +0100 unix: correctly track in-flight fds in sending process user_struct Hence, regardless of the stacking depth of FDs, the total number of inflight FDs is limited, and accounted. There is no known way for a local user to exceed those limits or exploit the accounting. Furthermore, the GC logic is independent of the recursion/stacking depth as well. It solely depends on the total number of inflight FDs, regardless of their layout. Lastly, the current `recursion_level' suffers a TOCTOU race, since it checks and inherits depths only at queue time. If we consider `A<-B' to mean `queue-B-on-A', the following sequence circumvents the recursion level easily: A<-B B<-C C<-D ... Y<-Z resulting in: A<-B<-C<-...<-Z With all of this in mind, lets drop the recursion limit. It has no additional security value, anymore. On the contrary, it randomly confuses message brokers that try to forward file-descriptors, since any sendmsg(2) call can fail spuriously with ETOOMANYREFS if a client maliciously modifies the FD while inflight. Cc: Alban Crequy <alban.crequy@collabora.co.uk> Cc: Simon McVittie <simon.mcvittie@collabora.co.uk> Signed-off-by:David Herrmann <dh.herrmann@gmail.com> Reviewed-by:
Tom Gundersen <teg@jklm.no> Signed-off-by:
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linzhang authored
In the pull_pages code block, if the first frag size > eat, we can end the loop in advance to avoid extra copy. Signed-off-by:
Lin Zhang <xiaolou4617@gmail.com> Acked-by:
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Biju Das authored
Add a new compatible string for the RZ/G1M (R8A7743) SoC. Signed-off-by:
Biju Das <biju.das@bp.renesas.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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Alvaro G. M authored
Keep supporting proprietary "xlnx,phy-type" attribute and add support for MII connectivity to the PHY. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Alvaro Gamez Machado <alvaro.gamez@hazent.com> Signed-off-by:
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David S. Miller authored
Xin Long says: ==================== sctp: remove typedefs from structures part 2 As we know, typedef is suggested not to use in kernel, even checkpatch.pl also gives warnings about it. Now sctp is using it for many structures. All this kind of typedef's using should be removed. This patchset is the part 2 to remove it for another 11 basic structures. Just as the part 1, No any code's logic would be changed in these patches, only cleaning up. Note that v1->v2, nothing changed, just because net-next were closed when posting v1. ==================== Signed-off-by: -
Xin Long authored
This patch is to remove the typedef sctp_hmac_algo_param_t, and replace with struct sctp_hmac_algo_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_chunks_param_t, and replace with struct sctp_chunks_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_random_param_t, and replace with struct sctp_random_param in the places where it's using this typedef. Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_supported_ext_param_t, and replace with struct sctp_supported_ext_param in the places where it's using this typedef. It is also to use sizeof(variable) instead of sizeof(type). Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_adaptation_ind_param_t, and replace with struct sctp_adaptation_ind_param in the places where it's using this typedef. Signed-off-by:
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Xin Long authored
Remove it, there is even no places using it. Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_supported_addrs_param_t, and replace with struct sctp_supported_addrs_param in the places where it's using this typedef. Signed-off-by:
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Xin Long authored
Remove this typedef, there is even no places using it. Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_cookie_preserve_param_t, and replace with struct sctp_cookie_preserve_param in the places where it's using this typedef. It is also to fix some indents in sctp_sf_do_5_2_6_stale(). Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_ipv6addr_param_t, and replace with struct sctp_ipv6addr_param in the places where it's using this typedef. Signed-off-by:
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Xin Long authored
This patch is to remove the typedef sctp_ipv4addr_param_t, and replace with struct sctp_ipv4addr_param in the places where it's using this typedef. Signed-off-by:
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Sowmini Varadhan authored
We could end up executing rds_conn_shutdown before the rds_recv_worker thread, then rds_conn_shutdown -> rds_tcp_conn_shutdown can do a sock_release and set sock->sk to null, which may interleave in bad ways with rds_recv_worker, e.g., it could result in: "BUG: unable to handle kernel NULL pointer dereference at 0000000000000078" [ffff881769f6fd70] release_sock at ffffffff815f337b [ffff881769f6fd90] rds_tcp_recv at ffffffffa043c888 [rds_tcp] [ffff881769f6fdb0] rds_recv_worker at ffffffffa04a4810 [rds] [ffff881769f6fde0] process_one_work at ffffffff810a14c1 [ffff881769f6fe40] worker_thread at ffffffff810a1940 [ffff881769f6fec0] kthread at ffffffff810a6b1e Also, do not enqueue any new shutdown workq items when the connection is shutting down (this may happen for rds-tcp in softirq mode, if a FIN or CLOSE is received while the modules is in the middle of an unload) Signed-off-by:Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by:
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- 16 Jul, 2017 16 commits
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David S. Miller authored
Arvind Yadav says: ==================== atm: constify atm pci_device_id. pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. ==================== Signed-off-by: -
Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 27702 468 16 28186 6e1a drivers/atm/idt77252.o File size After adding 'const': text data bss dec hex filename 27766 404 16 28186 6e1a drivers/atm/idt77252.o Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 21565 352 56 21973 55d5 drivers/atm/eni.o File size After adding 'const': text data bss dec hex filename 21661 256 56 21973 55d5 drivers/atm/eni.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 16884 444 28 17356 43cc drivers/atm/firestream.o File size After adding 'const': text data bss dec hex filename 16980 348 28 17356 43cc drivers/atm/firestream.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 14350 352 40 14742 3996 drivers/atm/zatm.o File size After adding 'const': text data bss dec hex filename 14446 256 40 14742 3996 drivers/atm/zatm.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 18074 352 0 18426 47fa drivers/atm/lanai.o File size After adding 'const': text data bss dec hex filename 18170 256 0 18426 47fa drivers/atm/lanai.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 16138 4592 24 20754 5112 drivers/atm/solos-pci.o File size After adding 'const': text data bss dec hex filename 16218 4528 24 20754 5122 drivers/atm/solos-pci.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 9859 328 6 10193 27d1 drivers/atm/horizon.o File size After adding 'const': text data bss dec hex filename 9923 264 6 10193 27d1 drivers/atm/horizon.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 26514 440 48 27002 697a drivers/atm/he.o File size After adding 'const': text data bss dec hex filename 26578 376 48 27002 697a drivers/atm/he.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 22781 464 128 23373 5b4d drivers/atm/nicstar.o File size After adding 'const': text data bss dec hex filename 22845 400 128 23373 5b4d drivers/atm/nicstar.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 20025 320 16 20361 4f89 drivers/atm/fore200e.o File size After adding 'const': text data bss dec hex filename 20089 256 16 20361 4f89 drivers/atm/fore200e.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 13372 408 4 13784 35d8 drivers/atm/ambassador.o File size After adding 'const': text data bss dec hex filename 13484 296 4 13784 35d8 drivers/atm/ambassador.o Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 23536 432 160 24128 5e40 drivers/atm/iphase.o File size After adding 'const': text data bss dec hex filename 23632 336 160 24128 5e40 drivers/atm/iphase.o Signed-off-by:
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Vincent Bernat authored
The definition of an "anycast destination address" has been tweaked as a side-effect of commit 2647a9b0 ("ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST"). The first address of a point-to-point /127 subnet is now considered as an anycast address. This prevents ICMPv6 errors to be returned to a sender of such a subnet and breaks PMTU discovery. This can be reproduced with: ip link add name out6 type veth peer name in6 ip link add name out7 type veth peer name in7 ip link set mtu 1400 dev out7 ip link set mtu 1400 dev in7 ip netns add next-hop ip netns add next-next-hop ip link set netns next-hop dev in6 ip link set netns next-hop dev out7 ip link set netns next-next-hop dev in7 ip link set up dev out6 ip addr add 2001:db8:1::12/127 dev out6 ip netns exec next-hop ip link set up dev in6 ip netns exec next-hop ip link set up dev out7 ip netns exec next-hop ip addr add 2001:db8:1::13/127 dev in6 ip netns exec next-hop ip addr add 2001:db8:1::14/127 dev out7 ip netns exec next-hop ip route add default via 2001:db8:1::15 ip netns exec next-hop sysctl -qw net.ipv6.conf.all.forwarding=1 ip netns exec next-next-hop ip link set up dev in7 ip netns exec next-next-hop ip addr add 2001:db8:1::15/127 dev in7 ip netns exec next-next-hop ip addr add 2001:db8:1::50/128 dev in7 ip netns exec next-next-hop ip route add default via 2001:db8:1::14 ip netns exec next-next-hop sysctl -qw net.ipv6.conf.all.forwarding=1 ip route add 2001:db8:1::48/123 via 2001:db8:1::13 sleep 4 ping -M do -s 1452 -c 3 2001:db8:1::50 || true ip route get 2001:db8:1::50 Before the patch, we get: 2001:db8:1::50 from :: via 2001:db8:1::13 dev out6 src 2001:db8:1::12 metric 1024 pref medium After the patch, we get: 2001:db8:1::50 via 2001:db8:1::13 dev out6 src 2001:db8:1::12 metric 0 cache expires 578sec mtu 1400 pref medium Fixes: 2647a9b0 ("ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST") Signed-off-by:
Vincent Bernat <vincent@bernat.im> Signed-off-by:
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sixiao@microsoft.com authored
Let bondvf.sh ignore this NIC if it has been configured, to prevent user configuration from being overwritten unexpectly. Signed-off-by:
Simon Xiao <sixiao@microsoft.com> Signed-off-by:
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Shannon Nelson authored
The original code didn't handle non-IPv4 packets very well, so the offload advertising had to be scaled back down to just IP. Here we add the bits needed to support TCP and UDP packets over IPv6 and turn the offload advertising back on. Orabug: 26289579 Signed-off-by:
Shannon Nelson <shannon.nelson@oracle.com> Signed-off-by:
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- 13 Jul, 2017 3 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix 64-bit division in mlx5 IPSEC offload support, from Ilan Tayari and Arnd Bergmann. 2) Fix race in statistics gathering in bnxt_en driver, from Michael Chan. 3) Can't use a mutex in RCU reader protected section on tap driver, from Cong WANG. 4) Fix mdb leak in bridging code, from Eduardo Valentin. 5) Fix free of wrong pointer variable in nfp driver, from Dan Carpenter. 6) Buffer overflow in brcmfmac driver, from Arend van SPriel. 7) ioremap_nocache() return value needs to be checked in smsc911x driver, from Alexey Khoroshilov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits) net: stmmac: revert "support future possible different internal phy mode" sfc: don't read beyond unicast address list datagram: fix kernel-doc comments socket: add documentation for missing elements smsc911x: Add check for ioremap_nocache() return code brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx() net: hns: Bugfix for Tx timeout handling in hns driver net: ipmr: ipmr_get_table() returns NULL nfp: freeing the wrong variable mlxsw: spectrum_switchdev: Check status of memory allocation mlxsw: spectrum_switchdev: Remove unused variable mlxsw: spectrum_router: Fix use-after-free in route replace mlxsw: spectrum_router: Add missing rollback samples/bpf: fix a build issue bridge: mdb: fix leak on complete_info ptr on fail path tap: convert a mutex to a spinlock cxgb4: fix BUG() on interrupt deallocating path of ULD qed: Fix printk option passed when printing ipv6 addresses net: Fix minor code bug in timestamping.txt net: stmmac: Make 'alloc_dma_[rt]x_desc_resources()' look even closer ...
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Linus Torvalds authored
I made the mistake of upgrading my desktop to the new Fedora 26 that comes with gcc-7.1.1. There's nothing wrong per se that I've noticed, but I now have 1500 lines of warnings, mostly from the new format-truncation warning triggering all over the tree. We use 'snprintf()' and friends in a lot of places, and often know that the numbers are fairly small (ie a controller index or similar), but gcc doesn't know that, and sees an 'int', and thinks that it could be some huge number. And then complains when our buffers are not able to fit the name for the ten millionth controller. These warnings aren't necessarily bad per se, and we probably want to look through them subsystem by subsystem, but at least during the merge window they just mean that I can't even see if somebody is introducing any *real* problems when I pull. So warnings disabled for now. Signed-off-by:Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linuxLinus Torvalds authored
Pull modules updates from Jessica Yu: "Summary of modules changes for the 4.13 merge window: - Minor code cleanups - Avoid accessing mod struct prior to checking module struct version, from Kees - Fix racy atomic inc/dec logic of kmod_concurrent_max in kmod, from Luis" * tag 'modules-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: make the modinfo name const kmod: reduce atomic operations on kmod_concurrent and simplify module: use list_for_each_entry_rcu() on find_module_all() kernel/module.c: suppress warning about unused nowarn variable module: Add module name to modinfo module: Pass struct load_info into symbol checks
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- 12 Jul, 2017 3 commits
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LABBE Corentin authored
Since internal phy-mode is reserved for non-xMII protocol we cannot use it with dwmac-sun8i. Furthermore, all DT patchs which comes with this patch were cleaned, so the current state is broken. This reverts commit 1c2fa5f8 ("net: stmmac: support future possible different internal phy mode") Fixes: 1c2fa5f8 ("net: stmmac: support future possible different internal phy mode") Signed-off-by:
Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by:
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Bert Kenward authored
If we have more than 32 unicast MAC addresses assigned to an interface we will read beyond the end of the address table in the driver when adding filters. The next 256 entries store multicast addresses, so we will end up attempting to insert duplicate filters, which is mostly harmless. If we add more than 288 unicast addresses we will then read past the multicast address table, which is likely to be more exciting. Fixes: 12fb0da4 ("sfc: clean fallbacks between promisc/normal in efx_ef10_filter_sync_rx_mode") Signed-off-by:
Bert Kenward <bkenward@solarflare.com> Signed-off-by:
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David S. Miller authored
Stephen Hemminger says: ==================== minor net kernel-doc fixes Fix a couple of small errors in kernel-doc for networking ==================== Signed-off-by:
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