On 3/1/24 10:27 AM, Alexei Starovoitov wrote:
On Fri, Mar 1, 2024 at 10:26 AM Kui-Feng Lee <sinquersw@xxxxxxxxx> wrote:
For BPF,
We have a lot of code mixing bpf_type_flag and bpf_reg_type in bpf.
They cause the warning messages described in the message following.
Do we want to fix them all, or keep them as they are?
They can be fixed by merging two enum types or casting here and there if
we want. Any other idea?
We probably should add -Wno-enum-enum-conversion to kernel/bpf/Makefile instead.
The warnings are only triggered with latest llvm19 development branch.
The warnings are triggered in many subsystems, bpf, mm, etc.
The following commandline can workaround the issue:
make LLVM=1 -j KCFLAGS=-Wno-enum-enum-conversion
There is a discussion how to fix it here:
https://github.com/ClangBuiltLinux/linux/issues/2002
No conclusion yet.
