| Message ID | 20250226183201.332713-1-mykyta.yatsenko5@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | introduce bpf_dynptr_copy kfunc | expand |
Hello: This series was applied to bpf/bpf-next.git (master) by Andrii Nakryiko <andrii@kernel.org>: On Wed, 26 Feb 2025 18:31:58 +0000 you wrote: > From: Mykyta Yatsenko <yatsenko@meta.com> > > Introduce a new kfunc, bpf_dynptr_copy, which enables copying of > data from one dynptr to another. This functionality may be useful in > scenarios such as capturing XDP data to a ring buffer. > The patch set is split into 3 patches: > 1. Refactor bpf_dynptr_read and bpf_dynptr_write by extracting code into > static functions, that allows calling them with no compiler warnings > 2. Introduce bpf_dynptr_copy > 3. Add tests for bpf_dynptr_copy > > [...] Here is the summary with links: - [bpf-next,v3,1/3] bpf/helpers: refactor bpf_dynptr_read and bpf_dynptr_write https://git.kernel.org/bpf/bpf-next/c/bacac2175c13 - [bpf-next,v3,2/3] bpf/helpers: introduce bpf_dynptr_copy kfunc https://git.kernel.org/bpf/bpf-next/c/9d15404d055b - [bpf-next,v3,3/3] selftests/bpf: add tests for bpf_dynptr_copy https://git.kernel.org/bpf/bpf-next/c/8fc1834cbde0 You are awesome, thank you!
From: Mykyta Yatsenko <yatsenko@meta.com> Introduce a new kfunc, bpf_dynptr_copy, which enables copying of data from one dynptr to another. This functionality may be useful in scenarios such as capturing XDP data to a ring buffer. The patch set is split into 3 patches: 1. Refactor bpf_dynptr_read and bpf_dynptr_write by extracting code into static functions, that allows calling them with no compiler warnings 2. Introduce bpf_dynptr_copy 3. Add tests for bpf_dynptr_copy v2->v3: * Implemented bpf_memcmp in dynptr_success.c test, as __builtin_memcmp was not inlined on GCC-BPF. Mykyta Yatsenko (3): bpf/helpers: refactor bpf_dynptr_read and bpf_dynptr_write bpf/helpers: introduce bpf_dynptr_copy kfunc selftests/bpf: add tests for bpf_dynptr_copy kernel/bpf/helpers.c | 75 ++++++++++- .../testing/selftests/bpf/prog_tests/dynptr.c | 21 +++ .../selftests/bpf/progs/dynptr_success.c | 123 +++++++++++++++++- 3 files changed, 210 insertions(+), 9 deletions(-)