[PATCH bpf-next v2 0/2] bpf: Build with -Wcast-function-type · Kees Cook <hidden> · 2021-09-28
[PATCH bpf-next v2 2/2] bpf: Replace callers of BPF_CAST_CALL with proper function typedef · Kees Cook <hidden> · 2021-09-28
Re: [PATCH bpf-next v2 2/2] bpf: Replace callers of BPF_CAST_CALL with proper function typedef · "Gustavo A. R. Silva" <gustavoars@kernel.org> · 2021-09-28
RE: [PATCH bpf-next v2 2/2] bpf: Replace callers of BPF_CAST_CALL with proper function typedef · David Laight <hidden> · 2021-10-02
[PATCH bpf-next v2 1/2] bpf: Replace "want address" users of BPF_CAST_CALL with BPF_CALL_IMM · Kees Cook <hidden> · 2021-09-28
Re: [PATCH bpf-next v2 1/2] bpf: Replace "want address" users of BPF_CAST_CALL with BPF_CALL_IMM · "Gustavo A. R. Silva" <gustavoars@kernel.org> · 2021-09-28
Re: [PATCH bpf-next v2 0/2] bpf: Build with -Wcast-function-type · Alexei Starovoitov <hidden> · 2021-09-28

Re: [PATCH bpf-next v2 0/2] bpf: Build with -Wcast-function-type

From: Alexei Starovoitov <hidden>
Date: 2021-09-28 23:34:08
Also in: bpf, linux-hardening, lkml

On Tue, Sep 28, 2021 at 4:09 PM Kees Cook [off-list ref] wrote:

Hi,

In order to keep ahead of cases in the kernel where Control Flow Integrity
(CFI) may trip over function call casts, enabling -Wcast-function-type
is helpful. To that end, replace BPF_CAST_CALL() as it triggers warnings
with this option and is now one of the last places in the kernel in need
of fixing.

Thanks,

-Kees

v2:
- rebase to bpf-next
- add acks
v1: https://lore.kernel.org/lkml/20210927182700.2980499-1-keescook@chromium.org (local)

Applied. Thanks

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