GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-27 17:11:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

bpf: prepare bpf_int_jit_compile/bpf_prog_select_runtime apis

Browse source 
Since the blinding is strictly only called from inside eBPF JITs,
we need to change signatures for bpf_int_jit_compile() and
bpf_prog_select_runtime() first in order to prepare that the
eBPF program we're dealing with can change underneath. Hence,
for call sites, we need to return the latest prog. No functional
change in this patch.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2016-05-13 19:08:31 +02:00 • committed by David S. Miller
parent c237ee5eb3
commit d1c55ab5e4
8 changed files with 40 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

8
arch/s390/net/bpf_jit_comp.c
View file

@ -1262,18 +1262,19 @@ void bpf_jit_compile(struct bpf_prog *fp)
/*
* Compile eBPF program "fp"
*/
void bpf_int_jit_compile(struct bpf_prog *fp)
struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
{
struct bpf_binary_header *header;
struct bpf_jit jit;
int pass;
if (!bpf_jit_enable)
return;
return fp;
memset(&jit, 0, sizeof(jit));
jit.addrs = kcalloc(fp->len + 1, sizeof(*jit.addrs), GFP_KERNEL);
if (jit.addrs == NULL)
return;
return fp;
/*
* Three initial passes:
* - 1/2: Determine clobbered registers
@ -1305,6 +1306,7 @@ void bpf_int_jit_compile(struct bpf_prog *fp)
}
free_addrs:
kfree(jit.addrs);
return fp;
}
/*