Hello!
On Mon, 11 Sept 2023 at 14:58, Daniel Díaz <[email protected]> wrote:
> 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
For what it's worth, bisection points to 903b487b5ba6 ("udf: Handle
error when adding extent to a file").
In order to reproduce:
#pip3 install -U tuxmake
tuxmake --runtime podman \
--target-arch arm \
--toolchain clang-17 \
--kconfig multi_v5_defconfig \
LLVM=1 LLVM_IAS=1
or:
#pip3 install -U tuxmake
tuxmake --runtime podman \
--target-arch powerpc \
--toolchain clang-17 \
--kconfig defconfig \
LLVM=1 LLVM_IAS=0 LD=powerpc64le-linux-gnu-ld
or:
#pip3 install -U tuxmake
tuxmake --runtime podman \
--target-arch s390 \
--toolchain clang-17 \
--kconfig defconfig \
LLVM_IAS=1
Greetings!
Daniel Díaz
[email protected]