Re: [PATCH] selftests/net: initialize char variable to null

[Ankit Khushwaha]

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@xxxxxxxxx>
> 
> 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