linux-kernel - Re: [PATCH 4.19 0/8] 4.19.182-rc1 review

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Date:   Sat, 20 Mar 2021 10:52:25 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH 4.19 0/8] 4.19.182-rc1 review

On Fri, Mar 19, 2021 at 02:21:46PM -0700, Guenter Roeck wrote:
> On Fri, Mar 19, 2021 at 01:18:19PM +0100, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 4.19.182 release.
> > There are 8 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 Sun, 21 Mar 2021 12:17:37 +0000.
> > Anything received after that time might be too late.
> > 
> 
> Build results:
> 	total: 155 pass: 154 fail: 1
> Failed builds:
> 	x86_64:tools/perf
> Qemu test results:
> 	total: 420 pass: 420 fail: 0
> 
> jvmti/jvmti_agent.c:48:21: error: static declaration of ‘gettid’ follows non-static declaration
>    48 | static inline pid_t gettid(void)
>       |                     ^~~~~~
> In file included from /usr/include/unistd.h:1170,
>                  from jvmti/jvmti_agent.c:33:
> /usr/include/x86_64-linux-gnu/bits/unistd_ext.h:34:16: note: previous declaration of ‘gettid’ was here
> 
> The tools/perf error is not new. It is seen because I started updating
> my servers to Ubuntu 20.0. The following patches would be needed to fix the
> problem in v4.19.y.
> 
> 8feb8efef97a tools build feature: Check if get_current_dir_name() is available
> 11c6cbe706f2 tools build feature: Check if eventfd() is available
> 4541a8bb13a8 tools build: Check if gettid() is available before providing helper
> fc8c0a992233 perf tools: Use %define api.pure full instead of %pure-parser
> 
> The first two patches prevent a conflict with the third patch, and the
> last patch fixes an unrelated build warning.
> 
> Older kernels are also affected. The list of patches needed for v4.14.y is:
> 
> 0ada120c883d perf: Make perf able to build with latest libbfd
>         (this patch is in v4.9.y but not in v4.14.y)
> 25ab5abf5b14 tools build feature: Check if pthread_barrier_t is available
> 8feb8efef97a tools build feature: Check if get_current_dir_name() is available
> 11c6cbe706f2 tools build feature: Check if eventfd() is available
> 4541a8bb13a8 tools build: Check if gettid() is available before providing helper
> fc8c0a992233 perf tools: Use %define api.pure full instead of %pure-parser
> 
> I tried to fix the problem in v4.9.y and v4.4.y as well, but that is pretty
> much hopeless. I'll have to stop testing perf builds for those kernels.

I'll suck these in for the next round of releases, thanks.

and thanks for testing.

greg k-h