diff mbox series

[bpf-next,v2,18/20] selftests/bpf: Add bpf_dynptr_user_init() helper

Message ID 20250125111109.732718-19-houtao@huaweicloud.com (mailing list archive)
State New
Delegated to: BPF
Headers show
Series Support dynptr key for hash map | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-VM_Test-5 success Logs for aarch64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-0 success Logs for Lint
bpf/vmtest-bpf-next-VM_Test-1 success Logs for ShellCheck
bpf/vmtest-bpf-next-VM_Test-3 success Logs for Validate matrix.py
bpf/vmtest-bpf-next-VM_Test-2 success Logs for Unittests
bpf/vmtest-bpf-next-VM_Test-4 success Logs for aarch64-gcc / build / build for aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-6 success Logs for aarch64-gcc / test (test_maps, false, 360) / test_maps on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-9 success Logs for aarch64-gcc / test (test_verifier, false, 360) / test_verifier on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-10 success Logs for aarch64-gcc / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-11 success Logs for aarch64-gcc / veristat-meta
bpf/vmtest-bpf-next-VM_Test-12 success Logs for s390x-gcc / build / build for s390x with gcc
bpf/vmtest-bpf-next-VM_Test-13 success Logs for s390x-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-16 success Logs for s390x-gcc / test (test_verifier, false, 360) / test_verifier on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-17 success Logs for s390x-gcc / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-18 success Logs for s390x-gcc / veristat-meta
bpf/vmtest-bpf-next-VM_Test-19 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-20 fail Logs for x86_64-gcc / build / build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-21 success Logs for x86_64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-22 success Logs for x86_64-gcc / test
bpf/vmtest-bpf-next-VM_Test-23 success Logs for x86_64-gcc / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-24 success Logs for x86_64-gcc / veristat-meta
bpf/vmtest-bpf-next-VM_Test-25 fail Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-26 fail Logs for x86_64-llvm-17 / build-release / build for x86_64 with llvm-17-O2
bpf/vmtest-bpf-next-VM_Test-27 success Logs for x86_64-llvm-17 / test
bpf/vmtest-bpf-next-VM_Test-28 success Logs for x86_64-llvm-17 / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-29 success Logs for x86_64-llvm-17 / veristat-meta
bpf/vmtest-bpf-next-VM_Test-30 fail Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-31 fail Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18-O2
bpf/vmtest-bpf-next-VM_Test-32 success Logs for x86_64-llvm-18 / test
bpf/vmtest-bpf-next-VM_Test-33 success Logs for x86_64-llvm-18 / veristat-kernel
bpf/vmtest-bpf-next-VM_Test-34 success Logs for x86_64-llvm-18 / veristat-meta
bpf/vmtest-bpf-next-PR fail PR summary
bpf/vmtest-bpf-next-VM_Test-7 success Logs for aarch64-gcc / test (test_progs, false, 360) / test_progs on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-8 success Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-14 success Logs for s390x-gcc / test (test_progs, false, 360) / test_progs on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-15 success Logs for s390x-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on s390x with gcc
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 success Errors and warnings before: 0 this patch: 0
netdev/build_tools success Errors and warnings before: 26 (+1) this patch: 26 (+1)
netdev/cc_maintainers warning 3 maintainers not CCed: mykolal@fb.com shuah@kernel.org linux-kselftest@vger.kernel.org
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 success total: 0 errors, 0 warnings, 0 checks, 13 lines checked
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

Commit Message

Hou Tao Jan. 25, 2025, 11:11 a.m. UTC 
From: Hou Tao <houtao1@huawei.com>

Add bpf_dynptr_user_init() to initialize a bpf_dynptr_user object. It
will be used test_progs and bench. User can dereference the {data|size}
fields directly to get the address and length of the dynptr object.

Signed-off-by: Hou Tao <houtao1@huawei.com>
---
 tools/testing/selftests/bpf/bpf_util.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h
index 5f6963a320d73..8ad7e97006c75 100644
--- a/tools/testing/selftests/bpf/bpf_util.h
+++ b/tools/testing/selftests/bpf/bpf_util.h
@@ -71,4 +71,13 @@  static inline void bpf_strlcpy(char *dst, const char *src, size_t sz)
 #define ENOTSUPP 524
 #endif
 
+/* sys_bpf() will check the validity of data and size */
+static inline void bpf_dynptr_user_init(void *data, __u32 size,
+					struct bpf_dynptr_user *dynptr)
+{
+	dynptr->data = data;
+	dynptr->size = size;
+	dynptr->reserved = 0;
+}
+
 #endif /* __BPF_UTIL__ */