linux-kernel - Re: [PATCH 5.15 000/317] 5.15.153-rc1 review

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Date: Mon, 25 Mar 2024 11:22:07 +0530
From: Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
To: Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, florian.fainelli@...adcom.com,
        pavel@...x.de, Vegard Nossum <vegard.nossum@...cle.com>,
        Darren Kenny <darren.kenny@...cle.com>
Subject: Re: [PATCH 5.15 000/317] 5.15.153-rc1 review

Hi Sasha,


On 25/03/24 04:59, Sasha Levin wrote:
> 
> This is the start of the stable review cycle for the 5.15.153 release.
> There are 317 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 Tue Mar 26 11:34:43 PM UTC 2024.
> Anything received after that time might be too late.
>

We have a build failure in  5.15.153:
libbpf.c:74:12: error: 'map_set_def_max_entries' used but never defined 
[-Werror]
    74 | static int map_set_def_max_entries(struct bpf_map *map);
       |            ^~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

this function is not defined in 5.15.153



$ git grep "map_set_def_max_entries"
tools/lib/bpf/libbpf.c:static int map_set_def_max_entries(struct bpf_map 
*map);
tools/lib/bpf/libbpf.c:                 err = 
map_set_def_max_entries(map->inner_map);


This is introduced by PATCH: "[PATCH 5.15 067/317] libbpf: Apply 
map_set_def_max_entries() for inner_maps on creation" in this series

This missing function is defined in commit: a4fbfdd7a160 ("libbpf: Fix 
BPF_MAP_TYPE_PERF_EVENT_ARRAY auto-pinning") and pulling this in needs 
some conflict resolution.

So I think for now the best idea is to drop this patch[067/317]


Thanks,
Harshit

> The whole patch series can be found in one patch at:
>          https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-5.15.y&id2=v5.15.152
> or in the git tree and branch at:
>          git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 
> Thanks,
> Sasha
>