diff mbox series

[bpf-next,v3,14/18] bpf: net_sched: Allow writing to more Qdisc members

Message ID 20250131192912.133796-15-ameryhung@gmail.com (mailing list archive)
State New
Delegated to: BPF
Headers show
Series bpf qdisc | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit fail Errors and warnings before: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 2 maintainers not CCed: horms@kernel.org pabeni@redhat.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch warning WARNING: line length of 91 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
bpf/vmtest-bpf-next-VM_Test-0 success Logs for Lint
bpf/vmtest-bpf-next-VM_Test-3 success Logs for Validate matrix.py
bpf/vmtest-bpf-next-VM_Test-4 fail Logs for aarch64-gcc / build / build for aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-2 success Logs for Unittests
bpf/vmtest-bpf-next-VM_Test-1 success Logs for ShellCheck
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bpf/vmtest-bpf-next-VM_Test-8 success Logs for aarch64-gcc / veristat-meta
bpf/vmtest-bpf-next-VM_Test-9 fail Logs for s390x-gcc / build / build for s390x with gcc
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bpf/vmtest-bpf-next-VM_Test-14 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-16 success Logs for x86_64-gcc / build-release
bpf/vmtest-bpf-next-PR fail PR summary
bpf/vmtest-bpf-next-VM_Test-15 fail Logs for x86_64-gcc / build / build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-17 success Logs for x86_64-gcc / test
bpf/vmtest-bpf-next-VM_Test-18 success Logs for x86_64-gcc / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-19 success Logs for x86_64-gcc / veristat-meta
bpf/vmtest-bpf-next-VM_Test-20 fail Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-21 fail Logs for x86_64-llvm-17 / build-release / build for x86_64 with llvm-17-O2
bpf/vmtest-bpf-next-VM_Test-22 success Logs for x86_64-llvm-17 / test
bpf/vmtest-bpf-next-VM_Test-23 success Logs for x86_64-llvm-17 / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-24 success Logs for x86_64-llvm-17 / veristat-meta
bpf/vmtest-bpf-next-VM_Test-25 fail Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-26 fail Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18-O2
bpf/vmtest-bpf-next-VM_Test-27 success Logs for x86_64-llvm-18 / test
bpf/vmtest-bpf-next-VM_Test-28 success Logs for x86_64-llvm-18 / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-29 success Logs for x86_64-llvm-18 / veristat-meta

Commit Message

Amery Hung Jan. 31, 2025, 7:28 p.m. UTC 
From: Amery Hung <amery.hung@bytedance.com>

Allow bpf qdisc to write to Qdisc->limit and Qdisc->q.qlen.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
---
 net/sched/bpf_qdisc.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c
index 2427343d8a10..b8f02ff8734e 100644
--- a/net/sched/bpf_qdisc.c
+++ b/net/sched/bpf_qdisc.c
@@ -68,6 +68,12 @@  static int bpf_qdisc_qdisc_access(struct bpf_verifier_log *log,
 	size_t end;
 
 	switch (off) {
+	case offsetof(struct Qdisc, limit):
+		end = offsetofend(struct Qdisc, limit);
+		break;
+	case offsetof(struct Qdisc, q) + offsetof(struct qdisc_skb_head, qlen):
+		end = offsetof(struct Qdisc, q) + offsetofend(struct qdisc_skb_head, qlen);
+		break;
 	case offsetof(struct Qdisc, qstats) ... offsetofend(struct Qdisc, qstats) - 1:
 		end = offsetofend(struct Qdisc, qstats);
 		break;