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tc: fix compilation with old gcc (< 4.6) (bis)

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Commit 8f80d450c3 ("tc: fix compilation with old gcc (< 4.6)") was reverted
to ease the merge of the net-next branch.

Here is the new version.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Nicolas Dichtel 2016-02-03 09:25:00 +01:00 committed by Stephen Hemminger
parent a9390c921a
commit 67584e3ab2
1 changed files with 33 additions and 25 deletions
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58
tc/tc_bpf.c
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@ -49,6 +49,10 @@
#include "tc_util.h"
#include "tc_bpf.h"
#ifndef AF_ALG
#define AF_ALG 38
#endif
#ifdef HAVE_ELF
static int bpf_obj_open(const char *path, enum bpf_prog_type type,
const char *sec, bool verbose);
@ -81,12 +85,13 @@ static int bpf(int cmd, union bpf_attr *attr, unsigned int size)
static int bpf_map_update(int fd, const void *key, const void *value,
uint64_t flags)
{
union bpf_attr attr = {
.map_fd = fd,
.key = bpf_ptr_to_u64(key),
.value = bpf_ptr_to_u64(value),
.flags = flags,
};
union bpf_attr attr;
memset(&attr, 0, sizeof(attr));
attr.map_fd = fd;
attr.key = bpf_ptr_to_u64(key);
attr.value = bpf_ptr_to_u64(value);
attr.flags = flags;
return bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr));
}
@ -745,12 +750,13 @@ static __check_format_string(1, 2) void bpf_dump_error(const char *format, ...)
static int bpf_map_create(enum bpf_map_type type, unsigned int size_key,
unsigned int size_value, unsigned int max_elem)
{
union bpf_attr attr = {
.map_type = type,
.key_size = size_key,
.value_size = size_value,
.max_entries = max_elem,
};
union bpf_attr attr;
memset(&attr, 0, sizeof(attr));
attr.map_type = type;
attr.key_size = size_key;
attr.value_size = size_value;
attr.max_entries = max_elem;
return bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}
@ -758,15 +764,16 @@ static int bpf_map_create(enum bpf_map_type type, unsigned int size_key,
static int bpf_prog_load(enum bpf_prog_type type, const struct bpf_insn *insns,
size_t size, const char *license)
{
union bpf_attr attr = {
.prog_type = type,
.insns = bpf_ptr_to_u64(insns),
.insn_cnt = size / sizeof(struct bpf_insn),
.license = bpf_ptr_to_u64(license),
.log_buf = bpf_ptr_to_u64(bpf_log_buf),
.log_size = sizeof(bpf_log_buf),
.log_level = 1,
};
union bpf_attr attr;
memset(&attr, 0, sizeof(attr));
attr.prog_type = type;
attr.insns = bpf_ptr_to_u64(insns);
attr.insn_cnt = size / sizeof(struct bpf_insn);
attr.license = bpf_ptr_to_u64(license);
attr.log_buf = bpf_ptr_to_u64(bpf_log_buf);
attr.log_size = sizeof(bpf_log_buf);
attr.log_level = 1;
if (getenv(BPF_ENV_NOLOG)) {
attr.log_buf = 0;
@ -779,10 +786,11 @@ static int bpf_prog_load(enum bpf_prog_type type, const struct bpf_insn *insns,
static int bpf_obj_pin(int fd, const char *pathname)
{
union bpf_attr attr = {
.pathname = bpf_ptr_to_u64(pathname),
.bpf_fd = fd,
};
union bpf_attr attr;
memset(&attr, 0, sizeof(attr));
attr.pathname = bpf_ptr_to_u64(pathname);
attr.bpf_fd = fd;
return bpf(BPF_OBJ_PIN, &attr, sizeof(attr));
}