linux

iv/linux

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Roberto Sassu e9e315b4a5 bpf: Move dynptr type check to is_dynptr_type_expected()

Move dynptr type check to is_dynptr_type_expected() from
is_dynptr_reg_valid_init(), so that callers can better determine the cause
of a negative result (dynamic pointer not valid/initialized, dynamic
pointer of the wrong type). It will be useful for example for BTF, to
restrict which dynamic pointer types can be passed to kfuncs, as initially
only the local type will be supported.

Also, splitting makes the code more readable, since checking the dynamic
pointer type is not necessarily related to validity and initialization.

Split the validity/initialization and dynamic pointer type check also in
the verifier, and adjust the expected error message in the test (a test for
an unexpected dynptr type passed to a helper cannot be added due to missing
suitable helpers, but this case has been tested manually).

Cc: Joanne Koong <joannelkoong@gmail.com>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220920075951.929132-4-roberto.sassu@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

2022-09-21 17:32:48 -07:00

accounting

delayacct: remove some unused variables

2022-06-16 19:58:21 -07:00

arch

tools kvm headers arm64: Update KVM header from the kernel sources

2022-08-27 11:55:16 -03:00

bootconfig

…

bpf

bpf: Define new BPF_MAP_TYPE_USER_RINGBUF map type

2022-09-21 16:24:17 -07:00