linux-kernel - Re: [PATCH 6.1 000/600] 6.1.53-rc1 review

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Date:   Mon, 11 Sep 2023 14:58:16 -0600
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org
Cc:     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 6.1 000/600] 6.1.53-rc1 review

Hello!

On 11/09/23 7:40 a. m., Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.1.53 release.
> There are 600 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, 13 Sep 2023 13:44:56 +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-6.1.53-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-6.1.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

We're seeing this new warning:
-----8<-----
   /builds/linux/fs/udf/inode.c:892:6: warning: variable 'newblock' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
     892 |         if (*err < 0)
         |             ^~~~~~~~
   /builds/linux/fs/udf/inode.c:914:9: note: uninitialized use occurs here
     914 |         return newblock;
         |                ^~~~~~~~
   /builds/linux/fs/udf/inode.c:892:2: note: remove the 'if' if its condition is always false
     892 |         if (*err < 0)
         |         ^~~~~~~~~~~~~
     893 |                 goto out_free;
         |                 ~~~~~~~~~~~~~
   /builds/linux/fs/udf/inode.c:699:34: note: initialize the variable 'newblock' to silence this warning
     699 |         udf_pblk_t newblocknum, newblock;
         |                                         ^
         |                                          = 0
   1 warning generated.
----->8-----

That's with Clang 17 (and nightly) on:
* arm
* powerpc
* s390

Greetings!

Daniel Díaz
daniel.diaz@...aro.org