On Sat, Aug 3, 2019 at 7:02 PM M. Vefa Bicakci <m.v.b@xxxxxxxxxx> wrote:
>
> Prior to this commit, starting nconfig, xconfig or gconfig, and saving
> the .config file more than once caused data loss, where a .config file
> that contained only comments would be written to disk starting from the
> second save operation.
>
> This bug manifests itself because the SYMBOL_WRITTEN flag is never
> cleared after the first call to conf_write, and subsequent calls to
> conf_write then skip all of the configuration symbols due to the
> SYMBOL_WRITTEN flag being set.
>
> This commit resolves this issue by clearing the SYMBOL_WRITTEN flag
> from all symbols before conf_write returns.
>
> Fixes: 8e2442a5f86e ("kconfig: fix missing choice values in auto.conf")
> Cc: linux-stable <stable@xxxxxxxxxxxxxxx> # 4.19+
> Signed-off-by: M. Vefa Bicakci <m.v.b@xxxxxxxxxx>
Applied to linux-kbuild/fixes.
Thanks.
--
Best Regards
Masahiro Yamada
