linux-kernel - Re: [PATCH 5.15 000/102] 5.15.136-rc1 review

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Date:   Mon, 16 Oct 2023 18:58:32 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>
Cc:     stable@...r.kernel.org, Sasha Levin <sashal@...nel.org>,
        Vegard Nossum <vegard.nossum@...cle.com>,
        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
Subject: Re: [PATCH 5.15 000/102] 5.15.136-rc1 review

On Mon, Oct 16, 2023 at 09:23:36PM +0530, Harshit Mogalapalli wrote:
> Hi Greg,
> 
> On 16/10/23 8:44 pm, Greg Kroah-Hartman wrote:
> > On Mon, Oct 16, 2023 at 07:06:20PM +0530, Harshit Mogalapalli wrote:
> > > Hi Greg,
> > > 
> > > On 16/10/23 2:09 pm, Greg Kroah-Hartman wrote:
> > > > This is the start of the stable review cycle for the 5.15.136 release.
> > > > There are 102 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 Wed, 18 Oct 2023 08:39:38 +0000.
> > > > Anything received after that time might be too late.
> > > > 
> > > 
> > > I am seeing a build failure while compiling tools/perf/
> > > 
> > > In file included from tests/genelf.c:14:
> > > tests/../util/genelf.h:5:10: fatal error: linux/math.h: No such file or
> > > directory
> > >   5 | #include <linux/math.h>
> > >   | ^~~~~~~~~~~~~~
> > > compilation terminated.
> > > 
> > > Patch 43 in this series is causing this.
> > 
> 
> Sorry for the confusion.
> 
> > What is patch 43?
> 
> It is patch 42/102 in this series
> 
> https://lore.kernel.org/stable/2023101641-resource-scalding-3e1d@gregkh/T/#m70a2a03b6204085af187184af911570681e744f5
> 
> Commit: e2bf685d7e311 ("perf inject: Fix GEN_ELF_TEXT_OFFSET for jit")
> 
> 
> > 
> > > Why is this not reproducible upstream ?
> > > 
> > > Vegard bisected the commit which makes it not reproducible upstream and this
> > > commit is missing in 5.15.y:
> > > Commit: d6e6a27d960f ("tools: Fix math.h breakage")
> > > 
> > > Backport request for this was made here:
> > > https://lore.kernel.org/all/CAMVNhxS-6qNfxy8jHrY5EtZASTL9gAvZi=BdTkUA5_5CSQ2Cmg@mail.gmail.com/
> > 
> > And that commit is in this patch series, so are you sure that was
> > correct?
> > 
> 
> Cause for this build issue:
> Commit: e2bf685d7e311 ("perf inject: Fix GEN_ELF_TEXT_OFFSET for jit")
> 
> And this issue is not in upstream due to presence of commit d6e6a27d960f
> ("tools: Fix math.h breakage") in upstream but not in 5.15.y

Ok, I'll go drop the patch entirely, I can't even get perf to build at
all for me on 5.15, which is why I've given up on it even mattering
anymore :(

thanks,

greg k-h