Daniel Borkmann 62c7989b24 bpf: allow b/h/w/dw access for bpf's cb in ctx ...

When structs are used to store temporary state in cb[] buffer that is
used with programs and among tail calls, then the generated code will
not always access the buffer in bpf_w chunks. We can ease programming
of it and let this act more natural by allowing for aligned b/h/w/dw
sized access for cb[] ctx member. Various test cases are attached as
well for the selftest suite. Potentially, this can also be reused for
other program types to pass data around.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-01-12 10:00:31 -05:00

..

arraymap.c

bpf: do not use KMALLOC_SHIFT_MAX

2017-01-10 18:31:54 -08:00

bpf_lru_list.c

bpf: Make unnecessarily global functions static

2017-01-10 21:00:59 -05:00

bpf_lru_list.h

bpf: Add percpu LRU list

2016-11-15 11:50:20 -05:00

cgroup.c

bpf: Add new cgroup attach type to enable sock modifications

2016-12-02 13:46:08 -05:00

core.c

bpf: fix overflow in prog accounting

2016-12-17 21:27:44 -05:00

hashtab.c

bpf: do not use KMALLOC_SHIFT_MAX

2017-01-10 18:31:54 -08:00

helpers.c

bpf: rename ARG_PTR_TO_STACK

2017-01-09 16:56:27 -05:00

inode.c

bpf: allow for mount options to specify permissions

2016-11-27 20:38:47 -05:00

Makefile

cgroup: add support for eBPF programs

2016-11-25 16:25:52 -05:00

percpu_freelist.c

bpf: introduce percpu_freelist

2016-03-08 15:28:31 -05:00

percpu_freelist.h

bpf: introduce percpu_freelist

2016-03-08 15:28:31 -05:00

stackmap.c

bpf: add BPF_CALL_x macros for declaring helpers

2016-09-09 19:36:04 -07:00

syscall.c

bpf: fix overflow in prog accounting

2016-12-17 21:27:44 -05:00

verifier.c

bpf: allow b/h/w/dw access for bpf's cb in ctx

2017-01-12 10:00:31 -05:00