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authorJakub Kicinski <kuba@kernel.org>2024-03-11 18:06:04 -0700
committerJakub Kicinski <kuba@kernel.org>2024-03-11 18:06:04 -0700
commit5f20e6ab1f65aaaaae248e6946d5cb6d039e7de8 (patch)
tree826f8a879f1d954b00e4b07a8afe271aed02992e /net
parentf095fefacdd35b4ea97dc6d88d054f2749a73d07 (diff)
parent66c8473135c62f478301a0e5b3012f203562dfa6 (diff)
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2024-03-11 We've added 59 non-merge commits during the last 9 day(s) which contain a total of 88 files changed, 4181 insertions(+), 590 deletions(-). The main changes are: 1) Enforce VM_IOREMAP flag and range in ioremap_page_range and introduce VM_SPARSE kind and vm_area_[un]map_pages to be used in bpf_arena, from Alexei. 2) Introduce bpf_arena which is sparse shared memory region between bpf program and user space where structures inside the arena can have pointers to other areas of the arena, and pointers work seamlessly for both user-space programs and bpf programs, from Alexei and Andrii. 3) Introduce may_goto instruction that is a contract between the verifier and the program. The verifier allows the program to loop assuming it's behaving well, but reserves the right to terminate it, from Alexei. 4) Use IETF format for field definitions in the BPF standard document, from Dave. 5) Extend struct_ops libbpf APIs to allow specify version suffixes for stuct_ops map types, share the same BPF program between several map definitions, and other improvements, from Eduard. 6) Enable struct_ops support for more than one page in trampolines, from Kui-Feng. 7) Support kCFI + BPF on riscv64, from Puranjay. 8) Use bpf_prog_pack for arm64 bpf trampoline, from Puranjay. 9) Fix roundup_pow_of_two undefined behavior on 32-bit archs, from Toke. ==================== Link: https://lore.kernel.org/r/20240312003646.8692-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/bpf/bpf_dummy_struct_ops.c14
-rw-r--r--net/ipv4/tcp_cong.c6
2 files changed, 6 insertions, 14 deletions
diff --git a/net/bpf/bpf_dummy_struct_ops.c b/net/bpf/bpf_dummy_struct_ops.c
index 02de71719aed..de33dc1b0daa 100644
--- a/net/bpf/bpf_dummy_struct_ops.c
+++ b/net/bpf/bpf_dummy_struct_ops.c
@@ -91,6 +91,7 @@ int bpf_struct_ops_test_run(struct bpf_prog *prog, const union bpf_attr *kattr,
struct bpf_tramp_link *link = NULL;
void *image = NULL;
unsigned int op_idx;
+ u32 image_off = 0;
int prog_ret;
s32 type_id;
int err;
@@ -114,12 +115,6 @@ int bpf_struct_ops_test_run(struct bpf_prog *prog, const union bpf_attr *kattr,
goto out;
}
- image = arch_alloc_bpf_trampoline(PAGE_SIZE);
- if (!image) {
- err = -ENOMEM;
- goto out;
- }
-
link = kzalloc(sizeof(*link), GFP_USER);
if (!link) {
err = -ENOMEM;
@@ -133,7 +128,8 @@ int bpf_struct_ops_test_run(struct bpf_prog *prog, const union bpf_attr *kattr,
err = bpf_struct_ops_prepare_trampoline(tlinks, link,
&st_ops->func_models[op_idx],
&dummy_ops_test_ret_function,
- image, image + PAGE_SIZE);
+ &image, &image_off,
+ true);
if (err < 0)
goto out;
@@ -147,7 +143,7 @@ int bpf_struct_ops_test_run(struct bpf_prog *prog, const union bpf_attr *kattr,
err = -EFAULT;
out:
kfree(args);
- arch_free_bpf_trampoline(image, PAGE_SIZE);
+ bpf_struct_ops_image_free(image);
if (link)
bpf_link_put(&link->link);
kfree(tlinks);
@@ -178,7 +174,7 @@ static int bpf_dummy_ops_check_member(const struct btf_type *t,
case offsetof(struct bpf_dummy_ops, test_sleepable):
break;
default:
- if (prog->aux->sleepable)
+ if (prog->sleepable)
return -EINVAL;
}
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 1b34050a7538..28ffcfbeef14 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -146,11 +146,7 @@ EXPORT_SYMBOL_GPL(tcp_unregister_congestion_control);
int tcp_update_congestion_control(struct tcp_congestion_ops *ca, struct tcp_congestion_ops *old_ca)
{
struct tcp_congestion_ops *existing;
- int ret;
-
- ret = tcp_validate_congestion_control(ca);
- if (ret)
- return ret;
+ int ret = 0;
ca->key = jhash(ca->name, sizeof(ca->name), strlen(ca->name));