v3 -> v4 - Fixed issue incorrect increment of arg counter - Removed __weak and noinline from kfunc definiton - Some other minor fixes. v2 -> v3 - Fixed missing prototype error - Fixes suggested by other Joanne and Kumar. v1 -> v2 - Used kfuncs as suggested by Alexei - Used Benjamin Tissoires' patch from the HID v4 series to add a sleepable kfunc set (I sent the patch as a part of this series as it seems to have been dropped from v5) and acked it. Hope this is okay. - Added support for verifying string constants to kfuncs Foundation for building more complex security policies using the BPF LSM as presented in LSF/MM/BPF: http://vger.kernel.org/bpfconf2022_material/lsfmmbpf2022-xattr.pdf Benjamin Tissoires (1): btf: Add a new kfunc set which allows to mark a function to be sleepable KP Singh (4): bpf: kfunc support for ARG_PTR_TO_CONST_STR bpf: Allow kfuncs to be used in LSM programs bpf: Add a bpf_getxattr kfunc bpf/selftests: Add a selftest for bpf_getxattr include/linux/bpf_verifier.h | 2 + include/linux/btf.h | 2 + kernel/bpf/btf.c | 38 +++++++- kernel/bpf/verifier.c | 89 +++++++++++-------- kernel/trace/bpf_trace.c | 42 +++++++++ .../testing/selftests/bpf/prog_tests/xattr.c | 58 ++++++++++++ tools/testing/selftests/bpf/progs/xattr.c | 37 ++++++++ 7 files changed, 228 insertions(+), 40 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/xattr.c create mode 100644 tools/testing/selftests/bpf/progs/xattr.c -- 2.37.0.rc0.104.g0611611a94-goog
