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authorDavid S. Miller <davem@davemloft.net>2018-07-20 23:58:30 -0700
committerDavid S. Miller <davem@davemloft.net>2018-07-20 23:58:30 -0700
commiteae249b27f0447a92b3f8c72cc45fcc4609ae00d (patch)
tree76a0df9c4ada3520bd654968afdfc8ea2b3e653a /samples
parentc59e18b876da3e466abe5fa066aa69050f5be17c (diff)
parent8ae71e76cf1f7b8de5c75356a00840e54c93e7a5 (diff)
downloadlinux-eae249b27f0447a92b3f8c72cc45fcc4609ae00d.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-07-20 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Add sharing of BPF objects within one ASIC: this allows for reuse of the same program on multiple ports of a device, and therefore gains better code store utilization. On top of that, this now also enables sharing of maps between programs attached to different ports of a device, from Jakub. 2) Cleanup in libbpf and bpftool's Makefile to reduce unneeded feature detections and unused variable exports, also from Jakub. 3) First batch of RCU annotation fixes in prog array handling, i.e. there are several __rcu markers which are not correct as well as some of the RCU handling, from Roman. 4) Two fixes in BPF sample files related to checking of the prog_cnt upper limit from sample loader, from Dan. 5) Minor cleanup in sockmap to remove a set but not used variable, from Colin. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
-rw-r--r--samples/bpf/bpf_load.c3
-rw-r--r--samples/bpf/test_cgrp2_sock2.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index 89161c9ed466..904e775d1a44 100644
--- a/samples/bpf/bpf_load.c
+++ b/samples/bpf/bpf_load.c
@@ -107,6 +107,9 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size)
return -1;
}
+ if (prog_cnt == MAX_PROGS)
+ return -1;
+
fd = bpf_load_program(prog_type, prog, insns_cnt, license, kern_version,
bpf_log_buf, BPF_LOG_BUF_SIZE);
if (fd < 0) {
diff --git a/samples/bpf/test_cgrp2_sock2.c b/samples/bpf/test_cgrp2_sock2.c
index 3b5be2364975..a9277b118c33 100644
--- a/samples/bpf/test_cgrp2_sock2.c
+++ b/samples/bpf/test_cgrp2_sock2.c
@@ -51,7 +51,7 @@ int main(int argc, char **argv)
if (argc > 3)
filter_id = atoi(argv[3]);
- if (filter_id > prog_cnt) {
+ if (filter_id >= prog_cnt) {
printf("Invalid program id; program not found in file\n");
return EXIT_FAILURE;
}