linux-kernel - Re: [PATCH 6.6 000/137] 6.6.34-rc1 review

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Message-ID: <CANk7y0i5919ih8UML+YtTr6MomemiJVu+4rpsU95TPBWv7bmeA@mail.gmail.com>
Date: Fri, 14 Jun 2024 11:36:41 +0200
From: Puranjay Mohan <puranjay12@...il.com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, 
	patches@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org, linux@...ck-us.net, 
	shuah@...nel.org, patches@...nelci.org, lkft-triage@...ts.linaro.org, 
	pavel@...x.de, jonathanh@...dia.com, f.fainelli@...il.com, 
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de, 
	conor@...nel.org, allen.lkml@...il.com, broonie@...nel.org, 
	Puranjay Mohan <puranjay@...nel.org>, "Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>, 
	"Paul E. McKenney" <paulmck@...nel.org>, Michael Ellerman <mpe@...erman.id.au>, 
	Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH 6.6 000/137] 6.6.34-rc1 review

Hi Greg and Naresh,

On Fri, Jun 14, 2024 at 11:15 AM Naresh Kamboju
<naresh.kamboju@...aro.org> wrote:
>
> On Thu, 13 Jun 2024 at 20:15, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> >
> > On Thu, 13 Jun 2024 at 17:35, Greg Kroah-Hartman
> > <gregkh@...uxfoundation.org> wrote:
> > >
> > > This is the start of the stable review cycle for the 6.6.34 release.
> > > There are 137 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 Sat, 15 Jun 2024 11:31:50 +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/v6.x/stable-review/patch-6.6.34-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-6.6.y
> > > and the diffstat can be found below.
> > >
> > > thanks,
> > >
> > > greg k-h
> >
> > The powerpc defconfig builds failed on stable-rc 6.6 branch due to below
> > build errors with gcc-13, gcc-8 and clang.
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> >
> > Build log:
> > ----
> > arch/powerpc/net/bpf_jit_comp64.c: In function 'bpf_jit_build_body':
> > arch/powerpc/net/bpf_jit_comp64.c:1010:73: error: 'fimage' undeclared
> > (first use in this function); did you mean 'image'?
> >  1010 |                                 ret =
> > bpf_jit_emit_func_call_hlp(image, fimage, ctx, func_addr);
> >       |
> >          ^~~~~~
> >       |
> >          image
> > arch/powerpc/net/bpf_jit_comp64.c:1010:73: note: each undeclared
> > identifier is reported only once for each function it appears in
>
> Anders bisected this and found following patch,
>  first bad commit:
>  [2298022fd5c6c428872f5741592526b8f4aadcf8]
>   powerpc/64/bpf: fix tail calls for PCREL addressing

^ this patch can't be backported directly as it is using 'fimage' that
was introduced by:
90d862f370b6 ("powerpc/bpf: use bpf_jit_binary_pack_[alloc|finalize|free]")

We need to manually rework this patch for the backport.

Thanks,
Puranjay