From: Alexei Starovoitov <ast@kernel.org>
Date: Tue, 28 Sep 2021 23:27:18 +0000 (-0700)
Subject: Merge branch 'bpf: Build with -Wcast-function-type'
X-Git-Tag: v5.16-rc1~159^2~303^2~20
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=72e1781a5de9e3ee804e24f7ce9a7dd85596fc51;p=thirdparty%2Fkernel%2Flinux.git

Merge branch 'bpf: Build with -Wcast-function-type'

Kees Cook says:

====================

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
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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72e1781a5de9e3ee804e24f7ce9a7dd85596fc51