Re: [PATCH 5.4 000/367] 5.4.257-rc1 review

[Guenter Roeck]

On 9/20/23 10:21, Florian Fainelli wrote:
> On 9/20/23 04:26, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.4.257 release.
> > There are 367 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Fri, 22 Sep 2023 11:28:09 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> >     https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.257-rc1.gz
> > or in the git tree and branch at:
> >     git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> perf does not build with:
>
> libbpf.c: In function 'bpf_object__close':
> libbpf.c:4205:15: error: 'struct bpf_object' has no member named 'btf_vmlinux'
>    btf__free(obj->btf_vmlinux);
>                 ^~
>
> due to 34d66b750e83d49c7d3d33d59e6a1b49e0d5db15 ("libbpf: Free btf_vmlinux when closing bpf_object")
>
> the btf_vmlinux member was introduced with a6ed02cac690b635dbb938690e795812ce1e14ca ("libbpf: Load btf_vmlinux only once per object.") which is only in >= 5.6.
>
> Suggset we drop that commit.


This problem affects 5.4, 5.10, and 5.15.

Guenter