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SubjectRe: [PATCH] selftests/net: initialize char variable to null
On Mon, Nov 24, 2025 at 12:46:52PM -0500, Willem de Bruijn wrote:
> Ankit Khushwaha wrote:
> > char variable in 'so_txtime.c' & 'txtimestamp.c' left uninitilized
> > by when switch default case taken. raises following warning.
> >
> > txtimestamp.c:240:2: warning: variable 'tsname' is used uninitialized
> > whenever switch default is taken [-Wsometimes-uninitialized]
> >
> > so_txtime.c:210:3: warning: variable 'reason' is used uninitialized
> > whenever switch default is taken [-Wsometimes-uninitialized]
> >
> > initialize these variables to NULL to fix this.
> >
> > Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
>
> These are false positives as the default branches in both cases exit
> the program with error(..).
>
> Since we do not observe these in normal kernel compilations: are you
> enabling non-standard warnings?

Hi Willem,

this warning appeared while building the 'tools/testing/selftests/net'
multiple times.
Cmd used to build
make -C tools/testing/selftests/net CC=clang V=1 -j8

while test building by "make -C tools/testing/selftests/ CC=clang V=1
-j8" doesn't raises these warning.

Thanks,
-- Ankit

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