Alexei Starovoitov 0ae7bad570 bpf: fix check_map_func_compatibility logic ...

[ Upstream commit 6aff67c85c ]

The commit 35578d7984 ("bpf: Implement function bpf_perf_event_read() that get the selected hardware PMU conuter")
introduced clever way to check bpf_helper<->map_type compatibility.
Later on commit a43eec3042 ("bpf: introduce bpf_perf_event_output() helper") adjusted
the logic and inadvertently broke it.
Get rid of the clever bool compare and go back to two-way check
from map and from helper perspective.

Fixes: a43eec3042 ("bpf: introduce bpf_perf_event_output() helper")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-05-18 18:35:04 -07:00

..

arraymap.c

perf/bpf: Convert perf_event_array to use struct file

2016-01-29 08:35:25 +01:00

core.c

bpf: move clearing of A/X into classic to eBPF migration prologue

2015-12-18 16:04:51 -05:00

hashtab.c

bpf: hash: use per-bucket spinlock

2015-12-29 15:13:44 -05:00

helpers.c

bpf: avoid copying junk bytes in bpf_get_current_comm()

2016-04-20 15:45:10 +09:00

inode.c

bpf: fix refcnt overflow

2016-05-18 18:35:04 -07:00

Makefile

bpf: add support for persistent maps/progs

2015-11-02 22:48:39 -05:00

syscall.c

bpf: fix refcnt overflow

2016-05-18 18:35:04 -07:00

verifier.c

bpf: fix check_map_func_compatibility logic

2016-05-18 18:35:04 -07:00