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linux_dsm_epyc7002/net/core
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Gustavo A. R. Silva 45a4296b6e bpf, sockmap: Replace zero-length array with flexible-array member 
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-17 19:05:05 -08:00
..
bpf_sk_storage.c bpf: Improve bucket_log calculation logic 2020-02-07 23:01:41 +01:00
datagram.c net: add queue argument to __skb_wait_for_more_packets and __skb_{,try_}recv_datagram 2019-12-09 09:59:07 +01:00
datagram.h net/core: Allow the compiler to verify declaration and definition consistency 2019-03-27 13:49:44 -07:00
dev_addr_lists.c net: remove unnecessary variables and callback 2019-10-24 14:53:49 -07:00
dev_ioctl.c net: Introduce peer to peer one step PTP time stamping. 2019-12-25 19:51:34 -08:00
dev.c core: Don't skip generic XDP program execution for cloned SKBs 2020-02-11 17:01:29 -08:00
devlink.c devlink: report 0 after hitting end in region read 2020-02-05 14:23:20 +01:00
drop_monitor.c drop_monitor: Do not cancel uninitialized work item 2020-02-07 18:48:36 +01:00
dst_cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dst.c net: print proper warning on dst underflow 2019-09-26 09:05:56 +02:00
failover.c failover: allow name change on IFF_UP slave interfaces 2019-04-10 22:12:26 -07:00
fib_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib_rules.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
filter.c treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
flow_dissector.c flow_dissector: Fix to use new variables for port ranges in bpf hook 2020-01-27 11:25:07 +01:00
flow_offload.c net: core: rename indirect block ingress cb function 2019-12-06 20:45:09 -08:00
gen_estimator.c net_sched: gen_estimator: extend packet counter to 64bit 2019-11-06 21:51:36 -08:00
gen_stats.c net_sched: add TCA_STATS_PKT64 attribute 2019-11-05 18:20:55 -08:00
gro_cells.c gro_cells: make sure device is up in gro_cells_receive() 2019-03-10 11:07:14 -07:00
hwbm.c net: hwbm: Make the hwbm_pool lock a mutex 2019-06-09 19:40:10 -07:00
link_watch.c net: link_watch: prevent starvation when processing linkwatch wq 2019-07-01 19:02:47 -07:00
lwt_bpf.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
lwtunnel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Makefile ethtool: move to its own directory 2019-12-12 17:07:05 -08:00
neighbour.c neigh_stat_seq_next() should increase position index 2020-01-24 11:42:18 +01:00
net_namespace.c netns: Constify exported functions 2020-01-17 13:25:24 +01:00
net-procfs.c net: procfs: use index hashlist instead of name hashlist 2019-10-01 14:47:19 -07:00
net-sysfs.c net-sysfs: Call dev_hold always in rx_queue_add_kobject 2019-12-17 22:57:11 -08:00
net-sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net-traces.c page_pool: add tracepoints for page_pool with details need by XDP 2019-06-19 11:23:13 -04:00
netclassid_cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
netevent.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
netpoll.c net: fix skb use after free in netpoll 2019-08-27 20:52:02 -07:00
netprio_cgroup.c netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
page_pool.c page_pool: refill page when alloc.count of pool is zero 2020-02-13 14:11:51 -08:00
pktgen.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ptp_classifier.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
request_sock.c tcp: add rcu protection around tp->fastopen_rsk 2019-10-13 10:13:08 -07:00
rtnetlink.c net: bridge: teach ndo_dflt_bridge_getlink() more brport flags 2020-02-17 14:36:40 -08:00
scm.c y2038: socket: remove timespec reference in timestamping 2019-11-15 14:38:29 +01:00
secure_seq.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
skbuff.c net: Support GRO/GSO fraglist chaining. 2020-01-27 11:00:21 +01:00
skmsg.c net, sk_msg: Don't check if sock is locked when tearing down psock 2020-01-22 20:30:20 +01:00
sock_diag.c sock: make cookie generation global instead of per netns 2019-08-09 13:14:46 -07:00
sock_map.c bpf, sockmap: Replace zero-length array with flexible-array member 2020-02-17 19:05:05 -08:00
sock_reuseport.c soreuseport: Cleanup duplicate initialization of more_reuse->max_socks. 2020-01-27 11:01:16 +01:00
sock.c xsk, net: Make sock_def_readable() have external linkage 2020-01-22 00:08:52 +01:00
stream.c tcp: make sure EPOLLOUT wont be missed 2019-08-19 13:07:43 -07:00
sysctl_net_core.c net, sysctl: Fix compiler warning when only cBPF is present 2019-12-19 17:17:51 +01:00
timestamping.c net: Introduce a new MII time stamping interface. 2019-12-25 19:51:33 -08:00
tso.c net: Use skb accessors in network core 2019-07-22 20:47:56 -07:00
utils.c net: Fix skb->csum update in inet_proto_csum_replace16(). 2020-01-24 20:54:30 +01:00
xdp.c treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00