https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #16 from Stephen Hemminger ---
(In reply to Sam James from comment #15)
> (In reply to Stephen Hemminger from comment #14)
> > (In reply to Sam James from comment #13)
> > > (In reply to Stephen Hemminger from comment #12)
> > >
> >
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #14 from Stephen Hemminger ---
(In reply to Sam James from comment #13)
> (In reply to Stephen Hemminger from comment #12)
>
> What does `gcc --version` give?
$ gcc-15 --version
gcc-15 (GCC) 15.0.0 2024 (experimental)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #12 from Stephen Hemminger ---
I tried to use the documented flag
$ gcc-15 -fzero-init-padding-bits=all
gcc-15: error: unrecognized command-line option ‘-fzero-init-padding-bits=all’
gcc-15: fatal error: no input files
compilation t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #11 from Stephen Hemminger ---
(In reply to Jakub Jelinek from comment #9)
> If this is in Linux kernel, I've told the kernel people they should use
> -fzero-init-padding-bits=unions because they rely on it for security reasons
> and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #8 from Stephen Hemminger ---
Created attachment 60139
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60139&action=edit
pre-processed source
gcc-15 -Idrivers/net/thunderx/base -I../drivers/net/thunderx/base -Ilib/ethdev
-I../l
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #5 from Stephen Hemminger ---
(In reply to Andrew Pinski from comment #2)
> (In reply to Andrew Pinski from comment #1)
> > Using `{}` is the correct fix. The referenced part of the C standard here is
> > applying to struct and not u
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
--- Comment #4 from Stephen Hemminger ---
Agree that empty initializer is best for this driver.
But other information here.
The compile flags for this driver have disabled the warning.
cflags += '-Wno-maybe-uninitialized'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118403
Bug ID: 118403
Summary: uninitialized warning with automatic union
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
